VERTICALBUYER INC
SB-2, 2000-04-05
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                              UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549

                                   FORM SB-2

            REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933



                               VERTICALBUYER, INC.
                             -----------------------
                             (Name of small business
                             issuer in its charter)

    Delaware                         7389                      98-0216911
- -----------------------      ----------------------------   -------------------
(State of incorporation      (Primary Standard Industrial    (I.R.S. Employer
   or jurisdiction            Classification Code Number)   Identification No.)
   of organization)


        40 Linnell Circle, Billerica, Massachusetts 01821 (978) 663-7598
- --------------------------------------------------------------------------------
         (Address and telephone number of principal executive offices)


        40 Linnell Circle, Billerica, Massachusetts 01821 (978) 663-7598
- --------------------------------------------------------------------------------
                  (Address of principal place of business or
                     intended principal place of business)


Roger Fidler, Esq. 163 South Street, Hackensack, New Jersey 07601 (201) 457-1221
- --------------------------------------------------------------------------------
          (Name, address, and telephone number of agent for service)


     Approximate  date of proposed  sale to the public:  as soon as  practicable
after  the  effective  date  of  the  registration  statement  and  date  of the
prospectus.

     The  registrant  hereby amends the  registration  statement on such date or
dates as may be necessary to delay its effective date until the registrant shall
file a  further  amendment  which  specifically  states  that  the  registration
statement shall  thereafter  become effective in accordance with Section 8(a) of
the  Securities  Act of 1933, as amended,  or until the  registration  statement
shall become  effective on such date as the Securities and Exchange  Commission,
acting pursuant to said Section 8(a), may determine.


<PAGE>

                         CALCULATION OF REGISTRATION FEE



Title of Each Class of    Amount        Proposed     Proposed    Amount of
Securities Being          Being         Maximum      Maximum     Registration
Registered                Registered    Offering     Aggregate   Fee
                                        Price Per    Offering
                                        Unit (1)     Price(1)
- --------------------------------------------------------------------------------
Shares of Common Stock
 by Selling Stockholders  2,000,000      $  1.00   $  2,000,000   $   508.00

Shares of Common Stock
 Underlying "A" Warrant   1,000,000         1.00      1,000,000       254.00

Shares of Common Stock
 Underlying "B" Warrant   1,000,000         1.00      1,000,000       254.00

Shares of Common Stock
 Underlying "C" Warrant   1,000,000         1.00      1,000,000       254.00

Shares of Common Stock
 Underlying "D" Warrants    225,000         1.00        225,000        57.15
                                                    -----------    ---------
 TOTAL                                              $ 5,225,000   $ 1,327.15


(1)  Estimated for purposes of computing the  registration  fee pursuant to Rule
     457.






<PAGE>


                             Cross Reference Sheet
                     Showing the Location In Prospectus of
                  Information Required by Items of Form SB-2


 Part I.    Information Required in Prospectus

Item
No.          Required Item                         Location or Caption
- ----          -------------                         --------------------

 1.          Front of Registration Statement       Front of Registration
             and Outside Front Cover of            Statement and Outside
             Prospectus                            Front Cover of Prospectus

 2.          Inside Front and Outside Back         Inside Front Cover Page
             Cover Pages of Prospectus             of Prospectus and Outside
                                                   Front Cover Page of
                                                   Prospectus

 3.          Summary Information and Risk          Prospectus Summary;
             Factors                               High Risk Factors

 4.          Use of Proceeds                       Use of Proceeds

 5.          Determination of Offering             Prospectus Summary -
             Price                                 Determination of Offering
                                                   Price; High Risk Factors

 6.          Dilution                              Dilution

 7.          Selling Security Holders              Not Applicable

 8.          Plan of Distribution                  Plan of Distribution

 9.          Legal Proceedings                     Litigation

10.          Directors, Executive Officers,        Management
             Promoters and Control Persons

11.          Security Ownership of Certain         Principal Stockholders
             Beneficial Owners and Management      of Common Stock

12.          Description of Securities             Description of Securities

13.          Interest of Named Experts and         Legal Opinions; Experts
             Counsel

14.          Disclosure of Commission Position     Statement as to
             on Indemnification for Securities     Indemnification
             Act Liabilities

15.          Organization Within Last              Management; Certain
             Five Years                            Transactions

<PAGE>


16.          Description of Business               Proposed Business

17.          Management's Discussion               Management's Discussion
             and Analysis or Plan of               and Analysis of Financial
             Operation                             Statements

18.          Description of Property               Proposed Business

19.          Certain Relationships and Related     Certain Transactions
             Transactions

20.          Market for Common Stock and           Prospectus Summary;
             Related Stockholder Matters           High Risk Factors

21.          Executive Compensation                Remuneration

22.          Financial Statements                  Financial Statements

23.          Changes in and Disagreements          Not Applicable
             with Accountants on Accounting
             and Financial Disclosure


<PAGE>

   As filed with the Securities and Exchange Commission on April 4, 2000
                                                  Registration No.
================================================================================
PROSPECTUS

Initial Public Offering

                               VERTICALBUYER, INC.

            2,000,000 Shares of Common Stock of Selling Stockholders
   3,225,000 Shares of Common Stock Underlying Common Stock Purchase Warrants

     VerticalBuyer,  Inc. has commenced  the  development  of  industry-specific
Internet websites for marketing,  sales and procurement of products and services
and has recently launched both an information website and a business to business
auction  website  dedicated  to  the  commercial   lighting  industry.   We  are
registering 2,000,000 shares of our common stock which we previously sold to CSP
Inc., a public  company  trading under the symbol "CSPI" on the Nasdaq  National
Market.  CSPI will distribute  ratably to its stockholders of record on the date
of this prospectus approximately 750,000 shares of our common stock. We are also
registering  1,000,000  shares  of our  common  stock  underlying  our Class "A"
Warrant,  1,000,000 shares underlying our Class "B" Warrant and 1,000,000 shares
underlying our Class "C" Warrant all of which were previously issued to CSPI and
225,000 shares  underlying our Class "D" Warrants  150,000 of which we issued as
compensation  to  financial  consultants  and  75,000 of which we sold to option
holders of CSPI.  We will not receive any of the proceeds for the sale of shares
by any selling stockholder.

     See "Risk  Factors"  beginning on page 5 to read about certain  factors you
should  consider  before buying common stock purchase  warrants or shares of our
common stock.

                                  -----------

  Neither the Securities and Exchange Commission nor any other regulatory body
has approved or disapproved of these securities or passed upon the accuracy or
adequacy of this prospectus. Any representation to the contrary is a criminal
offense.

- --------------------------------------------------------------------------------

                                       Per Security        Total

Exercise Price of Warrants..........    $1.00              $ 3,225,000
Commissions.........................    $ ---              $   ---
Proceeds to VerticalBuyer...........    $1.00              $ 3,225,000


- --------------------------------------------------------------------------------
NEITHER  THE  SECURITIES  AND  EXCHANGE  COMMISSION  NOR  ANY  STATE  SECURITIES
COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR DETERMINED IF THIS
PROSPECTUS  IS TRUTHFUL OR  COMPLETE.  ANY  REPRESENTATION  TO THE CONTRARY IS A
CRIMINAL OFFENSE.
- --------------------------------------------------------------------------------

                The date of this prospectus is                   , 2000

<PAGE>

                               PROSPECTUS SUMMARY

     You should  read the  following  summary  together  with the more  detailed
information  regarding our company,  exercise of our common stock warrants,  the
shares of our common stock registered and our financial  statements and notes to
those  statements  appearing  elsewhere in this  prospectus.  References in this
prospectus  to  "VerticalBuyer,"  "we," "our," "us" and the  "Company"  refer to
VerticalBuyer,  Inc., or, as appropriate,  Lightseek Limited, our United Kingdom
subsidiary.

     This  prospectus  contains  forward-looking  statements  based  on  current
expectations   of  our  company  and  our  industry.   You  can  identify  these
forward-looking  statements  when  you see us  using  words  such  as  "expect,"
"anticipate,"  estimate" and other similar  expressions.  These  forward-looking
statements  involve  risks and  uncertainties.  Our actual  results could differ
materially  from those  anticipated  in these  forward-looking  statements  as a
result of the factors  described in the "Risk Factors"  section and elsewhere in
this prospectus.

     We have  commenced the  development  of a portfolio of business to business
Internet  websites through the launching of both an information and auction site
relating to the commercial lighting industry. We intend to exploit market-making
opportunities in niche vertical markets with aggregate global revenues in excess
of $20 trillion  through  satisfying  the needs of business  buyers in small and
medium sized enterprises.

     Our management has an extensive  background in vertical market  publishing,
software development, corporate finance and emerging public company management.

     Our current portfolio consists of the following sites:

     o    Lightseek.com,   sponsored  by  Philips  Lighting,   GE  Lighting  and
          Osram-Sylvania,  is the premier  portal site for  lighting  designers,
          architects and lighting specifiers.

     o    LightingBuyer.com  was recently  launched as a global market place for
          the commercial lighting industry.

     o    LightingNews.com, sponsored by Philips Lighting Company, will become a
          global  newswire  service for the world  lighting  industry when it is
          launched in May, 2000.

     o    FinanceBuyer.com,   the   product  of  a   strategic   alliance   with
          SierraCities,  an online bank,  provides  online  financing  for small
          businesses.

     Since  inception,  Lightseek  was financed by its  founders,  Tim Rosen and
Leslie Kent. In March,  2000,  Lightseek was acquired by a newly formed Delaware
corporation,   VerticalBuyer,   Inc.  Shortly  thereafter,   VerticalBuyer  sold
2,000,000  shares  of its  common  stock and  3,000,000  common  stock  purchase
warrants to CSP Inc.  CSPI intends to  distribute  approximately  750,000 of the
shares of our common stock it purchased  to its  stockholders  on a basis of one
distributed   shares  for  every  five  shares  owned  by   shareholders.   This
distribution  is  being  registered  herein.  We  intend  to  file  for  trading
privileges on the Over the Counter Bulletin Board.


                                       2
<PAGE>

     We intend to continue the  development of our portfolio of information  and
business exchange websites in the following vertical sectors:

     o    Electrical
     o    Construction
     o    Aviation/Aerospace
     o    Shipping
     o    Automotive
     o    Marine

     To this end, in addition to our portfolio of websites,  we have  registered
and own the following Internet website domain names:

     o    WorldLightingExchange.com
     o    LightBid.com
     o    LampX.com
     o    ElectricalBuyer.com
     o    ElectricalTimes.com
     o    ConstructionBuyer.com
     o    AviationBuyer.com
     o    MarineBuyer.com
     o    AutoPartsBuyer.com
     o    AerospaceBuyer.com
     o    ShippingBuyer.com
     o    PlasticsBuyer.com
     o    FMBuyer.com
     o    utilitiesbuyer.com
     o    globalutilitiesexchange.com

                                  The Offering

Shares offered by the selling
  stockholders ..........................  2,000,000 shares
Shares underlying warrants ..............  3,225,000 shares
Exercise price of warrants ..............  $1.00*
Shares to be outstanding after
  warrant exercise ......................  2,225,000 shares
Use of proceeds from warrant exercise ...  For general corporate purposes,
                                           principally working capital and
                                           capital expenditures.
Proposed OTCBB symbol ...................  "VERB"
- -----------------
*    The  exercise  price of the  warrants was  determined  through  negotiation
     between us and CSPI and with certain  consultants  and bears no relation to
     OUR book  value,  revenues,  profits,  our  present  or  proposed  business
     prospects or other economic criteria of value.

                                       3
<PAGE>


                         Summary Financial Information
                                                           Period Ended
                                                         December 31,1999
                                                         ----------------
                                                         Actual   Pro-forma
                                                         ------   ---------
Statement of Income Data (1):

Net revenues.................................         $  21,945    21,945

Gross profit.................................               (80)      (80)

Income from operations.......................           (25,273)  (25,273)

Net income...................................           (25,273)  (25,273)

Net income (loss) per share(2):
  Basic......................................         $   (0.00)
  Weighted average shares--basic.............        17,000,000

  Diluted (2)................................         $   (0.00)
  Weighted average shares--diluted...........        17,000,000

(1)  The above  Statement of Income Data  reflects the  operations  of Lightseek
     Limited for the period from inception  (May 13, 1999) through  December 31,
     1999.  The  Pro-forma   column   reflects  the   consolidated   results  of
     VerticalBuyer  and Lightseek as if the acquisition had occurred on December
     31, 1999.

(2)  Pro-forma  diluted loss per share  excludes the 3,225,000  shares of common
     stock  underlying the warrants since the exercise of such warrants would be
     antidilutive.

                                            As of December 31, 1999
                                            -----------------------
                                                     Pro-forma
                                      Lightseek   Before Exercise After Exercise
                                        Limited      of Warrants     of Warrants
                                      ---------   --------------- --------------
Balance Sheet Data:

Cash and cash equivalents........... $       -      1,860,000      5,085,000

Working capital.....................     (62,311)   1,922,311      5,022,689

Total assets........................      47.809    1,907,809      5,132,809

Debt and leases, long-term portion..         -            -              -

Total stockholders' equity..........     (23,658)   1,883,658      5,061,342
- --------------

Note:     The pro-forma  "Before  Exercise of Warrants"  column  represents  the
          consolidated   accounts  of   VerticalBuyer   and   Lightseek   as  if
          VerticalBuyer's  acquisition of Lightseek and CSPI's  acquisition of 2
          million  shares  of  VerticalBuyer's  common  stock  had  occurred  on
          December 31, 1999.

<PAGE>

                                  RISK FACTORS

     You should  carefully  consider the risks  described below before making an
investment  decision.  The risks and  uncertainties  described below are not the
only ones facing our company.  Additional risks and  uncertainties not presently
known to us or that we currently  deem  immaterial  also may impair our business
operations.  If any of the following risks actually occur, our business could be
harmed.  In such case, the trading price of our Common Stock could decline,  and
you may lose all or part of your investment.

We have a limited operating history upon which you may evaluate our operations.
- -------------------------------------------------------------------------------

     Our  subsidiary,  Lightseek,  the  business of which we have  assumed,  was
formed only in May, 1999.  Accordingly,  we have limited  operating history upon
which you may  evaluate us. In  addition,  our revenue  model is evolving and we
have only a limited number of customers to date. Our lack of operating  history,
new management unit and evolving revenue model make it difficult to evaluate our
future prospects and evaluate our business strategy.

         This means that you will have only  limited  information  upon which to
base an investment  decision.  Because of our lack of operating history, we also
believe that period-to-period  comparisons of our results of operations will not
be  meaningful  in the short term and should not be relied upon as indicators of
future performance.

     We  will  encounter  risks  and  difficulties   frequently  encountered  by
early-stage   companies  in  new  and  rapidly  evolving  markets.  We  may  not
successfully address any of these risks. If we do not successfully address these
risks, our business would be seriously harmed.

     Our  e-commerce  businesses  will rely  initially on revenues from lighting
manufacturers,  distributors  and suppliers  and if we do not generate  revenues
from these markets,  or the revenues are lower than we anticipate,  we might not
have the resources to form new strategic alliances.

     To address these risks and uncertainties, we must do the following:

     o    maintain and increase our number of registered users,  items listed on
          our service and completed auctions;

     o    maintain and grow our website and customer operations;

     o    continue to make trading through our service safer for users;

     o    maintain and enhance our brand;

     o    successfully execute our business and marketing strategy;

     o    continue  to  develop  and  upgrade  our  technology  and  information
          processing systems;

     o    continue  to  enhance  our  service  to meet the  needs of a  changing
          market;

     o    provide superior customer service;

     o    respond to competitive developments; and

     o    attract, integrate, retain and motivate qualified personnel.

                                       5
<PAGE>

     Our inability to generate and increase  revenues in our initial  market may
depend on the factors stated in other risk factors and other issues, including:

     o    our  ability to develop an active  base of users  which list items for
          sale and which complete transactions through our service;

     o    our ability to keep our website  operational  and to manage the number
          of items listed on our service;

     o    federal, state or local government regulation;

     o    the  introduction  of new sites,  services  and products by us and our
          competitors;

     o    the success of our brand building and marketing campaigns;

     o    the level of use of the  Internet and online  services by  businesses,
          and, in  particular,  the trading of products  such as those listed on
          our present and planned websites;

     o    confidence in the security of transactions on our websites;

     o    our ability to upgrade and develop our systems and  infrastructure  to
          accommodate growth;

     o    our ability to attract new personnel in a timely and effective manner;

     o    the volume of items listed on our website;

     o    technical difficulties or service interruptions;

     o    the amount  and timing of  operating  costs and  capital  expenditures
          relating to expansion of our business, operations and infrastructure;

     o    general economic  conditions and economic  conditions  specific to the
          Internet and electronic commerce industries.

We anticipate we will incur continued losses for the foreseeable future.
- ------------------------------------------------------------------------

     We expect to incur losses for the foreseeable through costs associated with
building the infrastructure  necessary for our business,  including  substantial
expense to recruit and hire personnel. Our revenue may not be sufficient to fund
these expenses.  We may never be profitable or, if we become profitable,  we may
be unable to sustain  profitability.

     Anticipated  losses  may result  from our plan to  increase  our  operating
expenses to:

o    increase our sales and marketing operations;

o    broaden our customer support and software capabilities;

o    pursue strategic marketing and distribution alliances; and

o    attract qualified  managers for our expanded  administrative and commercial
     functions as well as for possible new acquisitions.

                                       6
<PAGE>

     Some  of our  expenses  are or  will  be  fixed,  including  non-cancelable
agreements,  equipment  leases  and real  estate  leases.  Other  expenses  will
increase as we hire more personnel. If our revenues do not increase, we may not
be able to compensate by reducing expenses in a timely manner. Expenses may also
increase  due to the  potential  impact of goodwill  and other  charges from any
future acquisitions.

     We believe that  profitability  and growth will depend in large part on our
ability to do the following:

     o    develop our brand name awareness;

     o    provide our customers with superior trading experiences; and

     o    maintain sufficient transaction volume to attract buyers and sellers.

We may have difficult in obtaining additional funding, if required.
- -------------------------------------------------------------------

     Although we believe that the funds to be raised  through  warrant  exercise
will be sufficient for our needs for the foreseeable future, if additional funds
are needed,  we may have  difficulty  obtaining  them, and we may have to accept
terms that would adversely affect our  shareholders.  For example,  the terms of
any future financings may impose  restrictions on our right to declare dividends
or on the manner in which we conduct our business. Also, lending institutions or
private  investors may impose  restrictions  on a future  decision by us to make
capital expenditures, acquisitions or asset sales.

     We may  not be able  to  locate  additional  funding  sources  at all or on
acceptable  terms.  If we cannot raise funds on  acceptable  terms,  if and when
needed, we may not be able to develop or enhance our services to customers, take
advantage of future  opportunities  for strategic  alliances within a particular
industry, grow our business or respond to competitive pressures or unanticipated
requirements, which could seriously harm our business.

If we cannot protect our trademarks and domain names we may not be able to
- ---------------------------------------------------------------------------
maintain future business.
- -------------------------

     Proprietary  rights  are  important  to our  success  and  our  competitive
position.  We are  applying  for federal  registration  of  "Lightseek.com"  and
"LightingBuyer.com"  as service marks for use in connection  with our electronic
commerce services.

     Although  we seek to protect  our  proprietary  rights,  our actions may be
inadequate to protect any trademarks and other proprietary  rights or to prevent
others  from  claiming  violations  of their  trademarks  and other  proprietary
rights.  We may  not be  able to  protect  our  domain  names  for  our  on-line
industry-specific  websites as trademarks because those names may be too generic
or perceived as  describing a product or service or its  attributes  rather than
serving a trademark function.

     If we are unable to protect our proprietary  rights in trademarks,  service
marks and other indications of origin, competitors will be able to use names and
marks that are  identical  or  sufficiently  similar to ours to cause  confusion
among  potential  customers  between us and our services and our competitors and
their  services.  This  confusion may result in the diversion of business to our
competitors or the loss of potential or existing customers.  Also, to the extent
competitors  using  identical or similar marks have problems with the quality of
their services, this confusion may injure our reputation for quality.

                                       7
<PAGE>

     Litigation against infringers of our service marks,  trademarks and similar
rights  may be  expensive.  Because  of the  difficulty  in  proving  damages in
trademark  litigation,  we may have  difficulty in recovering  damages should we
elect to bring an action against infringers of our marks.

We may encounter risks in protecting our copyrights and patents.
- ----------------------------------------------------------------

     While we seek to protect our text, designs and other works of authorship by
copyright,  we may not be able  to  detect  all  possible  infringements.  Also,
copyright protection does not extend to functional features of software and will
not be  effective  to prevent  third  parties from  duplicating  our  software's
capabilities through engineering research and development.

     We have not  conducted  searches to determine if our software  infringes on
any  patents of third  parties.  If our  software  is found to  infringe  on the
copyrights or patents of a third party,  the third party could require us to pay
royalties  for past use and for  continued  use,  or to  modify or  replace  the
software  to avoid  infringement.  We cannot  assure you that we will be able to
modify or replace our software.  in addition,  claims  brought by or against us,
could  subject us to costly  litigation  and the  diversion of our technical and
management personnel.

     The global  nature of the  Internet  makes it  impossible  to  control  the
ultimate  destination of our work; and our copyrights and trademarks may receive
limited or no protection in some countries.

Acquisitions and new strategic alliances may disrupt or otherwise have a
- ------------------------------------------------------------------------
negative impact on our business.
- --------------------------------

     We plan to make  investments in complementary  companies,  technologies and
assets. Future acquisitions are subject to the following risks:

     o    acquisitions may cause a disruption in our ongoing business,  distract
          our  management  and make it  difficult  to  maintain  our  standards,
          controls and procedures;

     o    we may acquire  companies  or make  strategic  alliances in markets in
          which we have little experience;

     o    we may not be able  successfully  to integrate the services,  products
          and personnel of any acquisition or new alliance into our operations;

     o    we may be required to issue equity securities to pay for acquisitions,
          which may be dilutive to existing shareholders; and

     o    our  acquisitions  may not result in any return on our investment and,
          as a result, we may lose our entire investment.

                                       8
<PAGE>

Our common stock price is likely to be highly volatile.
- --------------------------------------------------------

     We  initially  intend to trade  our  common  stock on the  Over-the-Counter
Bulletin  Board.  The market  price of our  common  stock is likely to be highly
volatile,  as the stock market in general,  and the market for  Internet-related
and  technology  companies  in  particular,   has  been  highly  volatile.   Our
shareholders  may  not be  able to  resell  their  shares  of our  common  stock
following periods of volatility because of the market's adverse reaction to this
volatility.   The  trading  prices  of  many  technology  and   Internet-related
companies'  stocks have reached  historical  highs within the past 24 months and
have reflected relative valuations substantially above historical levels. During
the same period, these companies' stocks have also been highly volatile and have
recorded lows well below those  historical  highs. We cannot assure you that our
stock will trade at the same levels of other  Internet  stocks or that  Internet
stocks in general will sustain their current market prices.

         Factors  that could  cause this  volatility  may  include,  among other
things:

     o    actual or anticipated variations in quarterly operating results;

     o    announcements of technological innovations;

     o    new sales formats or new products or services;

     o    changes in financial estimates by securities analysts;

     o    conditions or trends in the lighting industry;

     o    conditions or trends in the Internet industry;

     o    changes in the market valuations of other Internet companies;

     o    announcements  by us or our  competitors of significant  acquisitions,
          strategic partnerships or joint ventures;

     o    changes in capital commitments;

     o    additions or departures of key personnel; and

     o    sales of our common stock.

     Many of these factors are beyond our control.  These factors may materially
adversely  affect  the  market  price of our  common  stock,  regardless  of our
operating performance.

Shares eligible for future sales by our current stockholders may adversely
- --------------------------------------------------------------------------
affect the market price of our stock price.
- -------------------------------------------

     If our existing shareholders, particularly Tim Rosen, our President, Leslie
Kent, our Treasurer,  and CSPI, our major investor and the holder of most of our
warrants (or its  stockholders  who will receive shares of our common stock as a
distribution),  sell in the  public  market  substantial  amounts  of our common
stock,  including  shares  issued on the  exercise  of  outstanding  options and
warrants, then the market price of our common stock could fall.

                                       9
<PAGE>

Fluctuations in our quarterly results may adversely affect our stock price.
- ---------------------------------------------------------------------------

     We intend to register our common stock for trading on the  Over-the-Counter
Bulletin Board. Our quarterly  operating results will likely vary  significantly
in the future. Our operating results,  from time to time, will likely fall below
the  expectations  of our  investors or analysts and others who may be following
our stock. Our failure to meet these  expectations would likely adversely affect
the market price of our common stock.

     Our quarterly  operating results may vary depending on a number of factors,
including:

     o    demand of buyers and sellers to use our  websites to list and purchase
          equipment, inventory and parts;

     o    actions taken by our competitors, including new product introductions,
          fee schedules, pricing policies and enhancements;

     o    size and timing of sales of our services;

     o    our ability to control costs;

     o    budget cycles of buyers and sellers of equipment,  inventory and parts
          and changes in these budget cycles; and

     o    general economic factors.

Our success is dependent on retaining our current key personnel and attracting
- ------------------------------------------------------------------------------
additional personnel, particularly in the areas of sales, technical services
- ----------------------------------------------------------------------------
and customer support.
- ---------------------

     We believe  that our success  will depend on  continued  employment  of our
senior management team, particularly Tim Rosen, our President,  and Leslie Kent,
our  Treasurer,  and other key technical  personnel for the  development  of our
on-line  services  and our  ability to  attract  businesses  to use our  on-line
websites for the effective management, purchase and sale of equipment, inventory
and  assets.  Their  experience  in  e-commerce  asset  management,   sales  and
procurement  is  important  to the  establishment  of  business  in the  various
industries  in which we hope to develop  e-commerce  sites.  We do not  maintain
key-man life insurance on any of our personnel.

     Our success also depends on having a highly trained sales force,  telesales
group and technical and customer support personnel.  We will need to continue to
hire  additional  personnel as our business  grows.  A shortage in the number of
trained sales,  technical and customer support  personnel in the on-line service
industry  could  limit our  ability  to  increase  sales  and to sell  services.
Competition for personnel,  particularly for employees with technical expertise,
is intense.  New hires also frequently  require  extensive  training before they
achieve  desired levels of  productivity.  If we cannot hire and retain suitable
personnel,  we may not be able to expand and  develop  new  business to business
online communities effectively or support those that are developed, resulting in
loss of customers and revenues.

                                       10
<PAGE>

The interests of our significant shareholders may conflict with our interests
- -----------------------------------------------------------------------------
and the interests of our other shareholders.
- --------------------------------------------

     Tim Rosen, President,  and Leslie Kent, Treasurer collectively own 95% of
the outstanding  common stock. As a result of their stock ownership,  one or the
other of these  stockholders  may be in a position to affect  significantly  our
corporate actions,  including,  for example,  mergers or takeover attempts, in a
manner that could conflict with the interests of our public shareholders.

Anti-takeover provisions and our right to issue preferred stock could make a
- ----------------------------------------------------------------------------
third party acquisition of us difficult.
- ------------------------------------------

     We are a Delaware  corporation.  Anti-takeover  provisions  of Delaware law
could make it more difficult for a third party to acquire control of us, even if
a change in control would be beneficial to shareholders.

     Our  amended  certificate  of  incorporation  provides  that  our  board of
directors may issue preferred stock without shareholder  approval.  The issuance
of preferred stock could make it more difficult for a third party to acquire us.
Our board of  directors  may issue  preferred  stock with  voting or  conversion
rights that may have the effect of delaying, deferring or preventing a change of
control of us and would adversely  affect the market price of the  VerticalBuyer
stock or voting and other rights of holders of VerticalBuyer common stock.

Our e-commerce business may not develop additional revenue sources.
- -------------------------------------------------------------------

     We plan to generate revenues through  relationships with strategic partners
for the sale of assets  and  services  to  particular  industries.  To  generate
significant revenues from Internet business-to-business e-commerce, we will have
to continue to build these business  relationships  through our contacts and the
expertise  of our  current or future  personnel.  We may not be able to form new
strategic alliances due to a lack of sufficient financial resources or expertise
in a newly targeted  industry.  If we are not able to build these  relationships
with  strategic  partners,   we  will  have  difficulty   developing  additional
businesses to generate revenues.

Marketing and distribution alliances may not generate the expected number of new
- --------------------------------------------------------------------------------
of new customers or may be terminated.
- --------------------------------------

     We  intend  to  use  marketing,   distribution  and  strategic  trade-group
alliances  with  other  Internet  companies  to create  traffic  on our  on-line
business communities and,  consequently,  to generate revenues.  These marketing
and  distribution  alliances  will  allow us to link  our  on-line  websites  to
Internet search engines and other websites.  The success of these  relationships
depends  on the  amount  of  increased  traffic  we  receive  from the  alliance
partners' websites.

                                       11
<PAGE>

     We may have difficulty entering into marketing and distribution  alliances.
These  arrangements  may not generate the number of new customers we expect.  We
also cannot  assure you that we will be able to enter into these  marketing  and
distribution   alliances  or  renew  any  marketing  and  distribution  alliance
agreements  that we are able to establish.  If we are unable to establish  these
alliances  or if any of these  agreements  is  terminated,  the  traffic  on our
on-line websites might not grow and could decrease.

We may not be able to compete effectively with other providers of e-commerce
- ----------------------------------------------------------------------------
services.
- ---------

     We believe  that the  strongest  potential  competition  does not come from
traditional  service  groups but rather the  evolution  of the  Internet and the
types of business-to-business service providers that such evolution will create.
As applications  for  business-to-business  e-commerce  begin to proliferate and
mature,  we will  continue  to  compete  with  other  technology  companies  and
traditional   service   providers  that  seek  to  integrate   on-line  business
technologies with their traditional service mix.

     Competition  for Internet  products and  services and  electronic  business
commerce is intense.  We expect that  competition  will  continue to  intensify.
Barriers to entry are  minimal,  and  competitors  can launch new  websites at a
relatively  low  cost.  We  expect  that  additional  companies  will  establish
competing on-line business communities on a stand-alone basis.

     E-commerce applications are in the early stages of development.  Currently,
the  principal  focus of  e-commerce  business-to-business  groups is to provide
information and generate  revenues from  advertisement.  As e-commerce  evolves,
however,  we expect that other  entrepreneurs and large,  well-known  leaders in
specific industries will create other niche  business-to-business  services that
may compete with our services.

     These  large  industry  leaders,   particularly  major  original  equipment
manufacturers,  would have better name  recognition  in the markets  that we may
target.  We also expect  competition  from large  consulting  firms and software
solution  providers,  which have begun  developing  e-commerce  applications for
their existing clients.  The larger financial resources of these competitors may
enable them to market to potential  buyers and sellers of equipment,  inventory,
parts and other assets and launch more widespread marketing campaigns that would
make it more difficult for us to compete.

Our success depends on our ability to use an effective Internet marketing
- -------------------------------------------------------------------------
strategy that depends on Internet governance and regulation which are uncertain.
- --------------------------------------------------------------------------------

     The future  success of our  business is  dependent on our ability to use an
effective Internet marketing strategy. Because the original role of the Internet
was to link the government's  computers with academic  institutions'  computers,
the Internet was historically  administered by organizations  that were involved
in  sponsoring  research.  Private  parties  have  assumed  larger  roles in the
enhancement and  maintenance of the Internet  infrastructure.  Therefore,  it is
unclear  what  organization,  if any,  will  govern  the  administration  of the
Internet in the future, including the authorization of domain names.

     The lack of an appropriate organization to govern the administration of the
Internet  infrastructure and the legal  uncertainties that may follow pose risks
to the  commercial  Internet  industry and our  specific  website  business.  In
addition,  the  effective  operation  of the  Internet  and our business is also
dependent on the continued mutual  cooperation among several  organizations that
have widely  divergent  interests,  including the government,  Internet  service
providers  and  developers  of system  software  and  software  language.  These
organizations  may  find  that  achieving  a  consensus  may  become  difficult,
impossible, time-consuming and costly.

     Although we are not subject to direct regulation in the United States other
than federal and state business regulations generally, changes in the regulatory
environment  could  result in the  Federal  Communications  Commission  or other
United   States   regulatory   agencies   directly   regulating   our  business.
Additionally, as Internet use becomes more widespread internationally,  there is
an increased likelihood of international regulation.

     We cannot predict  whether or to what extent any new  regulation  affecting
e-commerce will occur. New regulation could increase our costs. For example,  we
do not  collect  sales or other  similar  taxes with  respect to the  equipment,
inventory and other products sold through our on-line  communities.  One or more
states  may seek to impose  sales tax  collection  obligations  on  out-of-state
companies  like ours that engage in or  facilitate  e-commerce.  State and local
governments  have made proposals that would impose  additional taxes on the sale
of goods and services over the Internet.  A successful  assertion by one or more
states or any foreign  country that we should  collect  sales and other taxes on
the  exchange  of  equipment,  inventory  and other  goods on our  system  could
increase  costs  that we could  have  difficulty  recovering  from  users of our
websites.

                                       12
<PAGE>

     Governmental  agencies and their  designees  regulate the  acquisition  and
maintenance of web addresses  generally.  For example, in the United States, the
National  Science  Foundation  had  appointed  Network  Solutions,  Inc.  as the
exclusive  registrar  for  the  ".com,"  ".net"  and  ".org"  generic  top-level
addresses.  Although Network Solutions no longer has exclusivity, it remains the
dominant registrar.  The regulation of web addresses in the United States and in
foreign  countries  is  subject to  change.  As a result,  we may not be able to
acquire or maintain  relevant web  addresses in all  countries  where we conduct
business  that are  consistent  with our  brand  names and  marketing  strategy.
Furthermore,  the relationship  between regulations  governing website addresses
and laws protecting trademarks is unclear.

We may face increased access costs from browser providers and Internet
- ----------------------------------------------------------------------
distribution channels.
- ----------------------

     Leading website, browser providers and other Internet distribution channels
may begin to charge us to provide  access to our  products  and  services  which
would increase our cost of doing business.

Concerns regarding security of transactions and transmitting confidential
- -------------------------------------------------------------------------
information over the Internet may negatively impact our e-commerce business.
- ----------------------------------------------------------------------------

     We believe that concern regarding the security of confidential  information
transmitted  over the  Internet,  including,  for  example,  business and supply
requirements,  credit card numbers and other forms of payment methods,  prevents
many potential business customers from engaging in online transactions. If we do
not add sufficient  security features to future product  releases,  our services
may not gain market acceptance or we may face additional legal exposure.

     Our  infrastructure  is  potentially  vulnerable  to physical or electronic
break-ins,  computer  viruses,  hackers or similar problems caused by employees,
customers  or  other  Internet  users.  If a  person  circumvents  our  security
measures,  that person could  misappropriate  proprietary  information  or cause
interruptions  in our  operations.  Security  breaches  that result in access to
confidential  information could damage our reputation and expose us to a risk of
loss or liability.  These risks may require us to make  significant  investments
and efforts to protect against or remedy security breaches, which would increase
the costs of maintaining our websites.

We may have interruptions in service.
- -------------------------------------

     Our computers and  telecommunications  equipment are  maintained by a third
party server hosting  company.  Any system  interruptions  may cause our on-line
websites to be unavailable  to web browsers and may reduce their  attractiveness
to our customers and potential  customers.  Also, we could experience  delays in
switching to a new service provider.  Any delays in response time or performance
problems  would  cause  users of our  system  to  perceive  our  service  as not
functioning  properly  and cause  them to use other  methods  to sell or procure
equipment, excess inventory and other assets.


                                       13
<PAGE>

We may be subject to legal liability for publishing or distributing content over
- --------------------------------------------------------------------------------
the Internet.
- -------------

     We  may  be  subject  to  legal  claims  relating  to  the  content  in our
industry-specific  on-line  websites,  or the  downloading  and  distribution of
content.  The representations as to the origin and ownership of licensed content
that we generally  obtain may not  adequately  protect us. In addition,  we draw
some of the  content  provided  in our on-line  business  communities  from data
compiled by other parties,  including  governmental and commercial sources. This
data may contain errors.

We depend on the continuous introduction of enhanced software capabilities and
- ------------------------------------------------------------------------------
expansion of our software services, which we may not be able to project
- -----------------------------------------------------------------------
accurately.
- -----------

     As  traffic  in our  on-line  businesses  increases,  we must  upgrade  our
technology, transaction processing systems and network hardware and software. In
addition,  we may not be able to expand and  upgrade  our  systems  and  network
hardware and software  capabilities to accommodate  increased use of our on-line
businesses. If we do not appropriately upgrade our systems, network hardware and
software on an ongoing basis, we may have difficulty retaining our customers and
competing effectively.

     The life cycles of the software used to support our e-commerce services are
difficult to predict  because the market for our  e-commerce  websites for sales
and  procurement  of equipment,  inventory and assets is new and emerging and is
characterized   by  changing   customer  needs  and  industry   standards.   The
introduction  of  on-line  products  employing  new  technologies  and  industry
standards could render our existing system obsolete and unmarketable.

Our business may be harmed by fraudulent activities on our website.
- -------------------------------------------------------------------

     Our future success will depend largely upon sellers reliably delivering and
accurately representing their listed goods and buyers paying the agreed purchase
price.  While we can  suspend the  accounts  of users who fail to fulfill  their
obligations to other users,  we do not have the ability to require users to make
payments or deliver goods or otherwise make users whole. Any negative  publicity
generated as a result of fraudulent or deceptive conduct by users of our service
could damage our reputation and diminish the value of our brand name.

                                       14
<PAGE>

The inability to expand our systems may limit our growth.
- ---------------------------------------------------------

     We seek to  generate  a high  volume of  traffic  and  transactions  on our
service.  The  satisfactory  performance,  reliability  and  availability of our
website,  processing  systems and  network  infrastructure  are  critical to our
reputation  and our ability to attract and retain  large  numbers of users.  Our
revenues  depend on the  number of items  listed  by users,  the  volume of user
auctions that are successfully completed and the final prices paid for the items
listed.  If the volume of traffic on our website or the number of auctions being
conducted by customers continues to increase, we will need to expand and upgrade
our technology,  transaction processing systems and network  infrastructure.  We
may not be able to accurately  project the rate or timing of increases,  if any,
in the use of our  service  or to timely  expand and  upgrade  our  systems  and
infrastructure to accommodate any increases.

System failures could harm our business.
- ----------------------------------------

     Our future  success,  and in particular  our ability to  facilitate  trades
successfully  and provide  high  quality  customer  service,  will depend on the
efficient  and  uninterrupted  operation  of  our  computer  and  communications
hardware and software  systems.  Our systems and  operations  are  vulnerable to
damage or  interruption  from a variety  of  causes.  They are also  subject  to
break-ins, sabotage, intentional acts of vandalism and similar misconduct. We do
not have fully redundant systems, a formal disaster recovery plan or alternative
providers  of hosting  services,  Any damage to or failure of our systems  could
result in  interruptions  in our  service.  Such  interruptions  will reduce our
revenues and profits,  and our future revenues and profits will be harmed if our
users believe that our system is unreliable.

Unauthorized break-ins to our service could harm our business.
- --------------------------------------------------------------

     Our servers are  vulnerable  to computer  viruses,  physical or  electronic
break-ins and similar  disruptions,  which could lead to interruptions,  delays,
loss of data or the  inability  to  complete  customer  auctions.  In  addition,
unauthorized  persons may improperly  access our data.  Such actions may be very
expensive  to remedy and could  damage our  reputation  and  discourage  new and
existing users from using our service.

There are many risks associated with international operations.
- --------------------------------------------------------------

     As we expand  internationally,  we are  subject to risks of doing  business
internationally, including the following:

  o  regulatory requirements that may limit or prevent the offering of our
     services in local jurisdictions;

  o  legal uncertainty regarding liability for the listings of our users,
     including less Internet friendly basic law and unique local laws;

  o  government-imposed limitations on  access to the Internet;

  o  difficulties in staffing and managing foreign operations;

  o  longer payment cycles, different accounting practices and problems in
     collecting accounts receivable;

                                       15
<PAGE>

  o  political instability;

  o  seasonal reductions in business activity;

  o  potentially adverse tax consequences; and

  o  administrative burdens in collecting local taxes, including value-added
     taxes.

     To the extent we expand our  international  operations and have  additional
portions of our international  revenues  denominated in foreign  currencies,  we
also could  become  subject to increased  difficulties  in  collecting  accounts
receivable and risks relating to foreign currency exchange rate fluctuations.

Our market is intensely competitive.
- ------------------------------------

   The market for business to business trading over the Internet is new, rapidly
evolving and intensely competitive, and we expect competition to intensify in
the future. Barriers to entry are relatively low, and current and new
competitors can launch new sites at a relatively low cost using commercially
available software.

Our business is dependent on the development and maintenance of the web
- -----------------------------------------------------------------------
infrastructure.
- ---------------

     The  success of our  service  will depend  largely on the  development  and
maintenance  of  the  Internet  infrastructure,  including  a  reliable  network
backbone with the necessary  speed,  data capacity and security.  Because global
commerce and the online  exchange of information is new and evolving,  we cannot
predict whether the Web will prove to be a viable commercial  marketplace in the
long term.  The Web has  experienced,  and is likely to continue to  experience,
significant  growth in the  numbers of users and amount of  traffic.  If the Web
continues to experience  increased numbers of users,  increased frequency of use
or increased  bandwidth  requirements,  the Web  infrastructure may be unable to
support the demands placed on it. In addition, the performance of the Web may be
harmed by increased users or bandwidth requirements.

Our business is subject to online commerce security risks.
- ----------------------------------------------------------

     A significant  barrier to online commerce and  communications is the secure
transmission  of confidential  information  over public  networks.  Our security
measures  may not prevent  security  breaches.  Our failure to prevent  security
breaches  could  harm our  business.  Advances  in  computer  capabilities,  new
discoveries in the field of cryptography,  or other developments may result in a
compromise  or  breach  of  the  technology  used  by  us  to  protect  customer
transaction  data. Any such compromise of our security could harm our reputation
and, therefore, our business.

                                       16
<PAGE>

We must keep pace with rapid technological change to remain competitive.
- ------------------------------------------------------------------------

     The  market  in which we  compete  is  characterized  by  rapidly  changing
technology,  evolving  industry  standards,  frequent  new  service  and product
introductions  and  enhancements  and changing  customer  demands.  These market
characteristics  are  worsened by the  emerging  nature of the  Internet and the
apparent need of companies  from a multitude of  industries  to offer  Web-based
products and services.  Our future success  therefore will depend on our ability
to adapt to rapidly  changing  technologies,  to adapt our  services to evolving
industry  standards and to  continually  improve the  performance,  features and
reliability of our service.  Our failure to adapt to such changes would harm our
business.

We are controlled by certain stockholders, executive officers and directors.
- ----------------------------------------------------------------------------

     Upon  completion  warrant  exercise,  our officers and  directors  will own
approximately  xx% of our outstanding  common stock. As a result,  they have the
ability to control our company  and direct our affairs and  business,  including
the election of directors and approval of  significant  corporate  transactions.
This  concentration  of ownership may have the effect of delaying,  deferring or
preventing  a change in control of our  company  and may make some  transactions
more difficult or impossible without the support of these  stockholders.  Any of
these events could decrease the market price of our common stock.


Management will have broad discretion over allocation of proceeds from exercise
- -------------------------------------------------------------------------------
of the warrants.
- ----------------

     The net proceeds to us from the exercise of our warrants will be $3,225,000
as all  expenses  relating  to the  registration  of our shares  underlying  the
warrants are being paid from funds presently in our treasury.  We currently have
no specific  plans for a  significant  portion of the net proceeds  from warrant
exercise.  Consequently, our management will have the discretion to allocate the
net proceeds to uses that stockholders may not deem desirable.  We may be unable
to yield a significant  return on any investment of the proceeds.  Substantially
all  of the  proceeds  from  exercise  of  our  warrants  will  be  invested  in
short-term,   interest-bearing,   investment   grade  government  and  corporate
securities and bank deposits.

                                  DILUTION

     Our net  tangible  book  value as of March  24,  2000 was  $1,836,342.  For
purpose of the following table, our net tangible book value has been taken to be
the book value of  Lightseek  on December 31, 1999 plus the proceeds of the sale
of our common stock to CSPI. Our net tangible book value per share was $0.11 Net
tangible  book value  represents  our net  tangible  assets  which are our total
assets less our total  liabilities and intangible  assets.  The warrant exercise
price is $1.00 which  represents  both gross and net proceeds per share as there
are no  commissions  associated  with  warrant  exercise  and  all  expenses  of
registering the shares  underlying the warrants are being paid from funds in our
treasury.  The pro forma net tangible book value after warrant  exercise will be
$5,061,342.  The pro forma net  tangible  book  value  per share  after  warrant
exercise will be $0.25 per share.  The shares  purchased by  warrantholders  who
exercise  their  warrants will be diluted $0.75 or 75.0%.  As of March 24, 2000,
there  were  17,000,000  shares  of  our  common  stock  outstanding.   Dilution
represents  the  difference  between the warrant  exercise price and the net pro
forma  tangible book value per share  immediately  following the exercise of our
warrants.

                                       17
<PAGE>

     The following  table  illustrates the dilution which will be experienced by
warrantholders who exercise their warrants:


Warrant exercise price ..............................................    $ 1.00
Net Tangible book value per share as of December 31, 1999 ...........    $(0.00)
Net Tangible book value per share after CSPI's acquisition of
  2 million common shares ...........................................    $ 0.11
Pro-forma net tangible book value per share after warrant exercise ..    $ 0.25
Pro-forma increase per share attributable to warrant exercise .......    $ 0.14
Pro-forma dilution to warrant holders who exercise their warrants ...    $ 0.75

     The  following  table sets  forth,  as of the date of the  prospectus,  the
percentage  of equity to be  purchased  by warrant  holders who  exercise  their
warrants  compared  to the  percentage  of  equity  to be owned  by the  present
stockholders,  and the  comparative  amounts  paid for the shares by the warrant
holders as compared to the total consideration paid by our present stockholders.
<TABLE>
<CAPTION>

                                    Shares Purchased                                     Percentage of Common Shares Owned
                                    ----------------                                     ---------------------------------
                         Pro-forma(1)     Pro-forma(2)       Pro-forma(3)                          Pro-forma(2)      Pro-forma(3)
                                            after         after all warrants      Pro-forma(1)       after        after all warrants
Public                   Dec. 31, 1999   CSP 2 million      are exercised         Dec. 31, 1999    CSP 2 million     are exercised
<S>                      <C>             <C>              <C>                     <C>              <C>            <C>
                         -------------   -------------    ------------------      -------------    -------------  ------------------
Common Stockholder
- ------------------
New Investors            $          -    $          -        $ 3,225,000               0.0%             0.0%              15.9%
Existing Shareholders
Founders                   14,250,000      14,250,000         14,250,000              95.0%            83.8%              70.5%
CSP                         2,000,000       2,000,000                  0.0%           11.8%             9.9%
Consultants                   750,000         750,000            750,000               5.0%             4.4%               3.7%
                           ----------      ----------         ----------             ------           ------              -----
                           15,000,000      17,000,000         17,000,000             100.0%           100.0%              84.1%
                           ----------      ----------         ----------             ------           ------              -----
                          $15,000,000     $17,000,000        $20,225,000             100.0%           100.0%             100.0%
                           ==========      ==========         ==========             ======           ======             ======

</TABLE>
<TABLE>
<CAPTION>

                               Total Consideration                                       Percentage of Total Consideration
                               -------------------                                       ---------------------------------

                         Pro-forma(1)     Pro-forma(2)       Pro-forma(3)                          Pro-forma(2)      Pro-forma(3)
                                            after         after all warrants      Pro-forma(1)       after        after all warrants
Public                   Dec. 31, 1999   CSP 2 million      are exercised         Dec. 31, 1999    CSP 2 million     are exercised
<S>                      <C>             <C>              <C>                     <C>              <C>            <C>
                         -------------   -------------    ------------------      -------------    -------------  ------------------
Common Stockholder
- ------------------
New Investors                $      -    $         -        $ 3,225,000                   0.0%             0.0%           15.9%
Existing Shareholders
Founders                        1,615          1,615              1,615                   2.1%             0.1%            0.0%
CSP                                 0      2,000,000          2,000,000                   0.0%            96.3%           37.7%
Consultants                    75,000         75,000             75,000                  97.9%             3.6%            1.4%
                            ---------      ---------        -----------                 ------           ------           -----
                               76,615      2,076,615          2,076,615                 100.0%           100.0%           39.2%
                            ---------      ---------        -----------                 ------           ------           -----
                            $  76,615     $2,076,615         $5,301,615                 100.0%           100.0%          100.0%
                            =========     ==========        ===========                 ======           ======          ======
</TABLE>

Notes:

1)   as if the Stock Acquisition had occurred on December 31, 1999.

2)   as if the Stock  Acquisition  and CSP'  acquisition of 2 million shares of
     VerticalBuyer had occurred on December 31, 1999.

3)   as if the Stock  Acquisition,  CSP'  acquisition  of 2  million  shares of
     VerticalBuyer,  and the  exercise of all  warrants had occurred on December
     31, 1999.

                                 USE OF PROCEEDS

     Both gross and net proceeds of warrant  exercise  will be $3,225,000 as all
costs associated with  registration of the shares of our common stock underlying
the warrants have been or will be paid from funds  presently in our treasury. We
will use funds raised through warrant exercise for working capital needs and, as
a result,  they are unallocated.  Prior to use, all of the proceeds from warrant
exercise  will be invested in  short-term,  interest-bearing,  investment  grade
government and corporate securities and bank deposits.

                                 CAPITALIZATION

     The following table sets forth our  capitalization as of December 31, 1999,
and pro forma as adjusted to give effect to the net  proceeds  from the exercise
of 3,225,000 warrants.

                                                      December 31, 1999
                                                   ----------------------------
                                                                 Pro-forma
                                                   Actual        As Adjusted(1)


Long-term debt                                   $      -        $         -

Stockholders' equity:
Common stock, $.001 par value; authorized
50,000,000 shares, issued and outstanding
20,225,000,000 shares;                                1,615             7,590
Preferred stock, $.001 par value; authorized
5,000,000 shares, issued and outstanding -0-.            -                 -

Additional paid-in capital                               -          5,079,025

Accumulated Deficit                                 (25,273)          (25,273)
                                                  -----------     ------------
Total stockholders' equity                          (23,658)        5,061,342
                                                  -----------     ------------
Total capitalization                              $ (23,658)      $ 5,132,809
                                                  ===========     ============
- -------------------------

(1)  As if our acquisition of Lightseek, the acquisition by CSPI of 2,000,000 of
     our shares of common  stock,  the  exercise by CSPI of warrants to purchase
     3,000,000  shares of our common stock and the exercise of warrants  held by
     other warrants  holders for 225,000 shares of our common stock all occurred
     on December 31, 1999.

                                       18
<PAGE>

                                DIVIDEND POLICY

     We have not declared or paid any cash dividends on our capital stock and do
not anticipate paying any cash dividends in the foreseeable future.

                 SELECTED PRO FORMA CONSOLIDATED FINANCIAL DATA

     Effective  February 24, 2000  VerticalBuyer  acquired  all the  outstanding
shares of  Lightseek.  The  acquisition  has been  accounted  for as a  "reverse
takeover" by Lightseek, and characterized as a recapitalization of Lightseek for
accounting purposes.

     The unaudited pro forma consolidated  statement of income data reflects the
acquisition  of  Lightseek as if such  acquisition  had occurred on December 31,
1999.  The pro forma  consolidated  statement  of income data is  presented  for
informational  purposes  only  and  may  not be  indicative  of the  results  of
operations  had the  acquisition  occurred on  December  31,  1999,  nor do they
purport to indicate our future results of the operations.

                                                                Year Ended
                                                             December 31, 1999
                                                           ---------------------

Pro Forma Consolidated Statement of Income Data:
Net revenues ............................................    $     21,945
Cost of sales ...........................................          22,025
                                                             -------------
Gross Profit ............................................             (80)
                                                             -------------
Operating expenses:
  Sales and marketing ...................................           3,165
  Product development ...................................          13,686
  General and administrative ............................           8,342
                                                             -------------
  Net (loss) ............................................    $    (25,273)
                                                             =============
Pro forma net (loss) per share (1):
  Basic...................................................        $ (0.0)
                                                              ===========
  Weighted average shares--basic..........................    17,000,000
                                                              ===========
  Diluted.................................................        $ (0.0)
                                                              ===========
  Weighted average shares--diluted........................    17,000,000
                                                              ===========
- --------
(1)  Pro-forma  diluted  loss per share  excludes  the  3,225,000  shares of our
     common stock  underlying  the warrants  since the exercise of such warrants
     would be antidilutive.


                                       19
<PAGE>

                      MANAGEMENT'S DISCUSSION AND ANALYSIS
                OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Overview
- --------

     We operate  business  to  business  Internet  e-commerce  sites in vertical
market sectors focusing initially on the commercial lighting market.

     We  commenced  our   operations  as  Lightseek   Limited,   a  corporation,
incorporated  in  May  1999  in  the  United   Kingdom.   We  were  acquired  by
VerticalBuyer,  Inc. in a  transaction  characterized  as a reverse  takeover on
February 24, 2000 and have transferred our operations to VerticalBuyer. We began
development   of   our   first   website,    an   information    portal   called
www.Lightseek.com,  in June,  1999; our  business-to-business  auction  website,
www.LightingBuyer.com,  commenced  operations  in February,  2000.  We presently
employ no personnel having outsourced all required activities.  We have recently
booked our first auction  sales.  We commenced  www.financeBuyer.com,  our small
business online financing website, in February, 2000.

     Most of our present income arises from advertising.  However, we anticipate
that,  ultimately,  most of our income will be derived  from fees  derived  from
auction sales.

     We do not charge fees to buyers  and,  to date,  we have chosen not to sell
advertising on our auction website.  Sellers pay a nominal placement fee to list
items for sale.  Sellers also pay a success fee for each item sold,  equal to 5%
of the gross value of each transaction.

     Revenues  from  placement  fees  are  recognized  when an  item is  listed;
revenues  relating to success fees are recognized at the time that an auction is
successfully  concluded.  At no point  during  the  auction  process  do we take
possession of the item being sold.  Successful  buyers'  payments are held in an
escrow   account   until  the  goods  are  received  by  the  buyer.

     Our business model differs from those of online  sellers of goods.  Because
individual  sellers list the items, we do not incur any cost for goods sold, nor
do we pay  procurement,  carrying or shipping costs and bear no inventory  risk.
Thus, we anticipate that any growth in our expenses will be driven by increases
in expenditures  for advertising and promotion and the development of additional
websites.   We  anticipate   increases  in  our  expenses,   and  in  particular
advertising,   promotion   and   personnel,   in  our   effort   to   grow   our
business-to-business sales.

     We have a limited  operating  history on which to base an evaluation of our
business and prospects.  Our prospects must be considered in light of the risks,
uncertainties,  expenses and difficulties frequently encountered by companies in
their early  stages of  development,  particularly  companies in new and rapidly
evolving markets such as online commerce.

     It is difficult for us to forecast our revenues or earnings accurately.  We
believe that future  period-to-period  comparisons of our operating  results may
not be  meaningful  and should  not be relied  upon as an  indication  of future
performance as we have and will have no backlog of orders. Our operating results
in one or more future  quarters may fall below investor  expectations.  Assuming
our common  stock  trades on a  recognized  market,  in that  event,  the future
trading price of our common stock would almost certainly decline.

                                       20
<PAGE>

Results of Operations
- ---------------------

     The following table sets forth,  for the period from our inception (May 13,
1999) through  December 31, 1999,  certain data from our statement of income and
the percentage of such data to net revenues. This data has been derived from and
should be read in conjunction  with the audited  financial  statements and notes
thereto of our subsidiary,  Lightseek Limited,  which is presented  elsewhere in
this  prospectus.  The operating  results are not necessarily  indicative of the
results that may be expected for any future period.

                 Period from May 13, 1999 to December 31, 1999

Net revenues.......................      $ 21,945       100.0%
Cost of net revenues...............        22,025       100.4
                                         ---------
 Gross profit......................          (800)       -0.4
                                         ---------
Operating expenses:
 Sales and marketing...............         3,165        14.4
 Product development...............        13,686        62.4
 General and administrative........         8,342        38.0
                                         ---------
   Total operating expenses........        25,193       114.8

Net (loss)                               $(25,993)     -115.2%
                                         =========
Revenues
- --------

     Revenues were $21,945 in 1999 consisting solely of advertising sales on our
www.lightseek.com  site. In 1999, there were no revenues from LightingBuyer.com.
Sales in the future  will be of an unknown  mix of  commissions  from sales from
auctions and advertising revenues.

Cost of Sales
- -------------

     Cost of sales were $22,025 in 1999.  These costs  consisted of  advertising
production  for  clients  of  www.lightseek.com,  website  operations,  fees for
independent contractors, software licenses, payments for editorial and technical
support, ISP connectivity charges, and amortization of purchased software.

     We anticipate  that our costs  associated  with net revenues will vary, and
may increase, as a percentage of net revenues in future periods as revenues from
www.lightingbuyer.com  our  auction  site  develop and as we expands our website
operations.

                                       21
<PAGE>

Sales and Marketing Expense
- ---------------------------

     Our sales and marketing  expenses  primarily  consist of expenditures  for
sales and  marketing  activity,  including  advertising,  and other  promotional
costs.

Product Development Expense
- ----------------------------

     Product development expenses are primarily attributable to consulting costs
related to  enhancing  the  features  and  functionality  of the  Company's  Web
sites. Product development costs are generally expensed as incurred,  except for
certain  costs  relating  to the  acquisition  or  development  of  internal-use
software  that are  capitalized  in  accordance  with the American  Institute of
Certified Public Accountant's Statement of Position No. 98-1 "Accounting for the
costs of computer software developed or obtained for internal use".

General and Administrative Expense

     Our general and administrative expenses were $8,342 consisting of print and
stationary,  professional  services and  miscellaneous  travel and entertainment
expenses.

     The initial cash funding of both  www.lightseek.com and  www.lightingbuyer.
com was principally  undertaken by Rosen & Kent, the private  partnership of the
two  founder  stockholders.  As a result,  we did not incur any  principal  debt
during the period.  Thus, our cash flow has no meaningful  significance in terms
of future developments.

     Currently  all sales and the  majority  of our  costs  are  incurred  in UK
sterling  and  translated  at an exchange  rate of $1.61 into U.S.  dollars.  We
expect  most  revenues  and  expenses  to be  incurred  in US  dollars in future
periods.

     We had no material  commitments  for capital  expenditures  at December 31,
1999 but expect such  expenditures  to occur in 2000.  We  anticipate  that such
expenditures  will be primarily for computer  equipment,  furniture and fixtures
and leasehold improvements.

     We  believe  that  our  existing  cash,  cash  equivalents  and  short-term
investments  and any cash generated from  operations  together with the proceeds
from warrant  exercise  will be  sufficient  to fund our  operating  activities,
capital expenditures and other obligations for the foreseeable future.  However,
if during  that  period  or  thereafter,  we are not  successful  in  generating
sufficient  cash flow from  operations  or in raising  additional  capital  when
required in sufficient amounts and on terms acceptable to us, our business could
suffer.   If  additional  funds  are  raised  through  the  issuance  of  equity
securities,  the percentage ownership of our then- current stockholders would be
reduced.

Year 2000 Issues

     We have not  suffered  any  programming  problems  as a result of Year 2000
issues.  In the development of our programming,  we endeavor to use only vendors
and  contractors  who are Year 2000  compliant.  We have  reviewed  our internal
programs  and have  determined  that there are no  significant  Year 2000 issues
within the our systems or services.

                                       22
<PAGE>

                                    BUSINESS

     This prospectus contains forward-looking  statements that involve risks and
uncertainties.  Our actual  results  may differ  significantly  from the results
discussed  in these  forward-looking  statements.  Factors that may cause such a
difference include, but are not limited to, those discussed in "Risk Factors."

History
- -------

     Rosen & Kent,  the United Kingdom  partnership of Tim Rosen,  our President
and Leslie Kent, our Secretary/Treasurer  conceived the concept of a business to
business  internet site in October 1998.  The original  concept was to create an
online database of United Kingdom  lighting  companies where buyers could search
for product  information  from  lighting  companies.  In December,  Rosen & Kent
commissioned  an  interactive  web  designer  to  develop  a  website  known  as
www.lightseek.com.  Lightseek.com is a portal site aimed at lighting specifiers.
A lighting specifier is a lighting designer, or architect with a lighting design
practice, an electrical contractor or a business end-user.

     In   September,   1999,   Rosen  &  Kent   created   a   splash   page  for
www.lightingbuyer.com  which  elicited  in  excess  of  600  registrations  from
companies  and  individuals  seeking to register as either  buyers or sellers or
both. In November, 1999, Rosen & Kent commissioned the development of an auction
site  capable of  allowing  sellers to list  products  for sale in an  "English"
auction  format.  English  auctions,  as used  by  Lightingbuyer  are  ascending
auctions  where  each  subsequent  bidder  must bid a higher  price to achieve a
concluded  purchase at the end of the pre-defined  auction period. The site went
live in February, 2000.

     In May, 1999, Rosen & Kent formed Lightseek,  a United Kingdom company.  In
February,  2000,  Rosen & Kent sold its  interest  in this  business,  including
intellectual  property  rights such as domain names,  to Lightseek in return for
all the issued and outstanding  ordinary shares.  The website  developers of the
www.lightseek.com  website were granted  ordinary shares in Lightseek as partial
compensation for their services.  In March, 2000, Lightseek Limited was acquired
by  VerticalBuyer,  Inc.,  a newly formed  inactive  Delaware  corporation,  for
14,250,000 shares of its common stock. In addition, VerticalBuyer issued 750,000
shares representing for arranging finance and financial consulting fees. Rosen &
Kent   registered   a   number   of   domains,   including    www.lightseek.com,
www.lightingbuyer.com,      www.financebuyer.com,       www.electricalbuyer.com,
www.constructionbuyer.com,     www.autopartsbuyer.com,    www.aviationbuyer.com,
ww.fmbuyer.com,  www.marinebuyer.com  and  www.shippingbuyer.com.  we  intend to
develop a portfolio of business to business  market  making sites in some or all
of the  domain  names  we own.  Aside  from our  sites  involving  the  lighting
industry,  we have not as yet started the  development of any additional  sites.
However, the underlying software architecture of both our lighting news site and
lighting  auction  exchange site are  extensible.  Thus,  we can rapidly  deploy
additional sites with a minimum of further software development.

General
- -------

     We were  incorporated  in Delaware on September  24,  1999,  and serve as a
holding company of Lightseek, our wholly-owned subsidiary. Through Lightseek, we
are a  business-to-business  company  specializing in the creation of e-commerce
news  portals and  marketplaces  to enable  web-based  information  and commerce
transactions.

                                       23
<PAGE>

     We  have  created  and  are  developing   industry-specific   websites  for
marketing, sales and procurement of products and services. We refer to this kind
of website as a "vertical  portal,"  which is a website  dedicated to a specific
industry  for use by  companies  in that  particular  industry  to buy and  sell
products and  services.  Under this  business  model,  VerticalBuyer  intends to
generate commissions based upon these transactions.

     Our  technology  permits  us to offer to buyers  and  sellers a variety  of
transaction methods including straight list price, open bid and auction, as well
as  e-procurement,  inventory  management  and asset  management  recovery.  Our
technology can be applied and customized  across a broad spectrum of industries.
We seek to generate revenue from transaction fees as well as from advertising on
our  news  portals.  Currently,  we own and  operate  one  news  portal  and one
e-commerce  site  relating to the  commercial  lighting  industry,  as well as a
finance portal.

     Our  operating   model  is  to  exploit  the  benefits  of  amortizing  our
administrative  and logistical  functions  across a broad range of markets.  The
marginal cost of entering new markets is therefore  small since one of the major
costs associated with  establishing  market making Internet sites is the capital
cost of developing the core technology architecture.  Our management approach is
for each of our  vertical  market  sites to be led by an industry  expert  whose
principal responsibility is to focus on business development.  Operational tasks
are the  responsibility of our central  operations  facility based in Billerica,
Massachusetts.

     Some of the key  elements of our strategy  are:

o    growing the community of buyers and sellers so that we become the preferred
     method of purchasing and selling excess  inventory in the areas in which we
     develop websites;

o    expanding  the number and product  categories in each of our websites so as
     to attract additional buyers and sellers;

o    increasing   users'  trust  through   checking  of  sellers'   credibility,
     verification of user and insurance;

o    enhancing our website features and functionality;

o    expanding value-added services,  such scanning and uploading photographs of
     listed items, logistics and finance; and

o    developing  international  markets by actively  marketing and promoting our
     website in selected countries.

     In  addition  to  developing  new  vertical  markets,  we  intend to pursue
acquisition  opportunities,  strategic  alliances  and act as an  incubator  for
ventures.

LightingBuyer.com
- -----------------

     LightingBuyer.com's  purpose is to  facilitate  the  buying and  selling of
surplus  stock for the  lighting  industry.  In addition  to  services  provided
through  its  website,  www.lightingbuyer.com,  it intends  to  provide  related
services in inventory evaluation,  inventory cataloging and the off-line sale or
auction of surplus equipment.  LightingBuyer.com's  available listings originate
largely from overstocked,  never-used inventories held by companies based mainly
in the United States.  LightingBuyer.com also makes available products available
from foreign companies.

                                       24
<PAGE>

     We  expect  that  transaction  fees  will  constitute   LightingBuyer.com's
principal  compensation.  Clients  seeking  to  accelerate  the sale of  surplus
inventories can arrange for on-line auctions through our website.  Those clients
can either participate in general LightingBuyer.com auctions or conduct auctions
under a  private  arrangement.  In a general  auction,  bidding  would  occur on
equipment  and  products of multiple  sellers for a listed  period of time,  and
sales would be made as the bidding  process closes for the items.  In an auction
under  private  arrangement, the bidding and sale process would involve one or a
small number of sellers whose  equipment and assets would be the only items sold
at that time.  Off-line inventory  evaluation and disposition  services are also
available through LightingBuyer.com.

     Browsers can visit the site and review auction listings.  However, in order
to  participate  in the auction  process,  buyers and  sellers  are  required to
register.  Upon  registration,  buyers  are  permitted  to place bids on auction
listings immediately.  Sellers are required to be approved in a process that can
take up to 48 hours.  Sellers' bona fides including  credit history are checked.
Sellers can list their  products for sale using a simple  "wizard"  process that
guides them through the  protocols to set up an auction sale.  Required  details
include  product  description,   asking  price,  shipping  details.   Additional
information  such as product images,  reserve  pricing,  product  dimensions and
weight can be added  voluntarily.  A seller can publish  its auction  listing as
soon as he is satisfied as to the content of the listing.

     The website offers a  comprehensive  categorization  of lighting  products,
including  bulbs,  fixtures,  ballasts,  components  and controls  with detailed
sub-categorization.

     Currently,  the functionality of the site permits prospective buyers to bid
in an English auction format.  We intend to offer  additional  auctions  formats
including  "first come first  served,"  "Exchange bid and counter bid," "reverse
auctions" and "private auctions."

o    First come first served  auctions allow buyers to acquire title and receive
     goods that they are bidding on as soon as the seller's asking price is met.
     The benefit of this type of auction is that  buyers can obtain  their goods
     faster than in an English auction (where the auction period,  albeit set by
     the  seller,  is an extended  one) and sellers can receive  their cash more
     quickly.

o    Exchanges  are  internet  venues  where  buyers  and  sellers  can  bid and
     counterbid on product  offerings in real time. This method is suitable both
     for offers to sell and requests to buy products.  It differs from the first
     come  first  served  in that in the first  come  first  served  there is no
     counter bidding for as soon as the seller's  predetermined  asking price is
     met, the bargain is struck.

o    Reverse auctions tend to be used by buyers  requesting  offers from sellers
     for products they require.  A reverse auction works on the basis of a buyer
     setting a maximum  price it wishes to pay for an item.  Sellers then bid in
     amounts below the maximum set by the buyer. The bargain is struck at lowest
     price accepted by the buyer.

o    Private  auctions  allow  both  buyers  and  sellers  to screen  and invite
     selected  participants to bid in their  auctions.  This process permits the
     buyer or seller,  as the case may be, to target their  products to specific
     geographic regions and the class of participant.  For example, a seller may
     wish to offer goods only to its "Tier 1"  distributors  and only in certain
     geographic   locations. Tier   1  distributors   are  the  first  level  of
     distribution  which  might in turn sell to local  distributors,  electrical
     contractors or end users.

                                       25
<PAGE>

     Unlike many business to business or business to consumer  auction sites, we
facilitate  the  transaction  between  buyers and sellers  once there has been a
successful bid. Our management  believes that left to their own devices,  seller
and buyers fail to complete transactions even when there is active bidding and a
successful bid above any seller's reserve.  Consequently,  we provide as part of
our site software  which permits the buyer to calculate  shipping costs provides
online assistance in arranging the logistics,  and, if requested,  keys into the
online software integrated to the United Parcel Service.

     Additionally,  and of equal  importance.  We  arrange  the flow of  capital
between buyer and seller so that both parties are protected. We have established
an escrow account into which buyers may deposit the purchase  price.  We release
funds to the seller only when the buyer is  satisfied  with the goods.  To avoid
intractable disputes, we also offer arbitration by independent  arbitrators and,
where required, we will organize third party evaluation of values of stock.

     In order to avoid  uncertainty  with the system and to reassure  buyers and
sellers,  we also offer online customer  service support in a live chat room. We
intend in the near future to offer  additional  "concierge"  services to private
auction  clients  including  consolidation  of stock from  various  distribution
centers to a single site and  repackaging  and  relabelling to maintain  branded
standards. international basis.

Competition
- -----------

     We believe that we compete  favorably with  competing  sites because of the
functionality of our e-commerce software and support services.  We differentiate
ourself  from  many of our  market  competitors  through  the  expertise  of our
strategic  partners  and  internal  management  and  operations  expertise.  Our
management  believes that the companies which operate certain competing websites
do not have the management  experience within the industries their websites seek
to penetrate.  Many of these Internet companies base their competitive  strength
on their  technology.  We believe that our  strength is based on our  experience
within the targeted industry and its strategic alliance partners.

     Other companies do operate  Internet  websites that currently list lighting
parts and equipment for sale and auction.  To the best of our  knowledge,  these
companies do not have the business  skills,  business  methodologies or industry
related   expertise  that   LightingBuyer.com   provides  through  its  internal
operations.

Competitive websites include the following:

     o    Tradeout.com is a general auction site spanning many industries. ie it
          is not industry specific or buyer targeted.

     o    i2i.com is a new  auction/exchange  site. It has very few listings and
          is not targeting specific categories of its business audience.

     o    GE  SupplyLight.com is the GE Lighting E-commerce site. It only stocks
          GE lamps from normal stock.

     o    Grainger.com  sells a broad range of industrial  products. Its site is
          essentially an online catalog.

                                       26
<PAGE>

LightingNews
- ------------

     In October,  1999, we approached  Philips Lighting  Company,  a division of
Philips Electronics North America Corporation, with a concept to create a global
newswire  service  for the  commercial  lighting  industry.  After  discussions,
Philips agreed to sponsor an online news forum  entitled  "www.lightingnews.com"
due to be  launched  in the  second  quarter  of 2000.  It will  allow  lighting
companies and  suppliers to post their press  releases on a continuous as needed
basis, initially free of charge. Charges will be made for adding product images,
website links and other  information.  The site will be designed to be simple to
use and news suppliers which could be a client company or its public relations
firm  will be  able  to  post  material   directly  to  the  site.

     Registered  users of the site can search by product  category,  application
(for example,  lighting for industry,  for  institutions,  for residences etc.),
people,  corporation  information.  Users can also  personalize the site to take
account of individual preferences. They can also customize a newsletter entitled
"My Lighting News.com" which contains news alerts and set the frequency at which
they receive it. In essence,  rather than visiting the site, readers can receive
information  via email in the categories they have selected and at the frequency
at which they wish to receive it. The software is scalable in that it allows for
a virtually  unlimited  increase in  subscribers or users and also permits added
functionality  and the  creation  of  sites  for  additional  vertical  industry
sectors.

Lightseek
- ---------

     We presently  operate  Lightseek.com  which  provides  business-to-business
online  services that  facilitate the exchange of information  within the global
lighting  industry.  Lightseek.com  is  initially  focused  on  providing  news,
articles,  industry forums, recruitment services and product information for the
lighting industry. Its revenues have been derived from advertising fees.

     The  lightseek.com  site presently  consists of a buyers' guide  containing
contact  information  for almost all UK lighting  companies,  shop fronts  where
advertisers can display information about their product lines, contacts to their
websites  and where they can receive  online  inquiries  from their  prospective
buyers. The site also contains a message forum where industry  professionals can
exchange  opinions and ask questions of their peers.  It also contains an events
diary of industry  expositions and conferences.  Since  inception,  the focus of
lightseek.com  has moved from UK centric to  international  in scale.  The major
change has been to feature international news in particular news from the United
States  on the  site.  The  site  is  accepting  buyers'  guide  listings  on an

FinanceBuyer
- ------------

     One of the  domain  names  transferred  to  Lightseek  by  Rosen & Kent was
www.financebuyer.com. We have entered into an agreement with Sierracities, Inc.,
an online financial  institution  which allows visitors to this website to apply
for loans and  equipment  leases  online and to obtain  action on the  financing
request within a few minutes.  Lightseek  receives a commission on all financing
placed through the site.

                                       27
<PAGE>

Marketing
- ---------

     We have retained  KCSA,  Inc. a New York  City-based  public  relations and
investor  relations advisory firm. KCSA will undertake trade public relations in
order to  attract  a  critical  mass of  buyers  and  sellers  initially  to our
LightBuyer and eventually to other of our websites as well as providing investor
relations  cousultancy.  KCSA  intends to place press  releases  and articles in
trade and  business  publications.  We have and intend to  continue  to purchase
banner  advertisements  and key  words on  related  trade  websites  and  search
engines.  We also  plan a print  advertising  campaign  in  trade  journals.  In
addition, we intend to undertake a direct mail campaign  targeted to sellers and
buyers, participate in trade shows and hire a sales force to make sales calls on
leading companies in the industry.

Employees
- ---------

     As of March 28, 2000,  we had no  employees  but  employed  consultants  or
consultant companies.


Facilities
- ----------

     As of March 28, 2000, our principal  administrative  facilities are located
in the  premises  of  CSPI in  Billerica  under a  memorandum  of  understanding
pursuant to which office  space,  computers  and  administrative  personnel  are
provided to us free of charge for six months.  Our  marketing  and  research and
development  office is located in an office of 800 square feet at 7 Gough House,
57 Eden Street, Kingston-Upon-Thames, England pursuant to an oral agreement with
an  affiliated  party at the rate of one pound  annually.  We  believe  that our
existing  facilities are adequate to meet our needs for the immediate future and
that future growth can be  accommodated  by leasing  additional  or  alternative
space near our current facilities.

                                   MANAGEMENT

Executive Officers and Directors

   The following table sets forth certain information regarding the executive
officers and directors of the Company as of March 28, 2000:

           Name               Age          Position                     Since
 ---------------------------  --- -----------------------------       --------

Timothy Neil David Rosen      43   President, Chief Executive           2/2000
40 Linell Circle                   Officer and a Director
Billerica, MA 01821

Leslie Kent                   45  Secretary, Treasurer, Chief
40 Linell Circle                  Financial Officer and a Director      2/2000
Billerica, MA 01821

Joseph Donahue (1) (2)        53  A Director                            2/2000
40 Linell Circle
Billerica, MA 01821

Alexander R. Lupinetti (1)(2) 54  A Director                            2/2000
40 Linell Circle
Billerica, MA 01821

- --------
(1) Member of the Audit Committee.
(2) Member of the Compensation Committee.

                                       28
<PAGE>

     Tim Rosen has been Commercial  Director of Lightseek since its inception in
May, 1999 and of our company  since  February,  2000.  From 1988 to date, he has
been a  partner,  with  Leslie  Kent,  Secretary/Treasurer,  in Rosen & Kent,  a
management  consultancy.  The partnership also incubates new business  ventures.
Since 1988, he has also been a director of Litech Ltd., a specialist fiber optic
lighting provider for the commercial  lighting industry.  From 1983 to 1988, Mr.
Rosen  was  a  director   of   OmniMedia   plc,  a  digital   video  and  CD-ROM
publisher/developer  which traded on the  Alternative  Investment  Market of the
London  Stock  Exchange.  From 1983 to 1988,  Mr. Rosen was a director of Oxford
House College,  a London-based  computer  training and language school which was
sold to its  employees.  He was also a  director,  from 1983 to 1988 of Catalyst
Communications Group plc, a marketing and media group quoted on the London Stock
Exchange which was sold to another public company,  Holmes & Marchant plc. Rosen
& Kent founded Homeshield Warranty, Co. in 1982 as a joint venture with Pentland
Industries  plc,  an  English  public  company.   Homeshield  marketed  extended
warranties  for household  appliances and was sold to a trade buyer in 1984. Mr.
Rosen  served as an account  supervisor  at Craton  Lodge and Knight  plc, a new
product  development agency, from 1981 to 1982 and at Grey Advertising from 1979
to 1981. He is a member of the National  Association of  Auctioneers.  Mr. Rosen
received his B.Sc (Econ.)  Magna cum Laude in Business  Administration  from the
Institute of Science and Technology, University of Wales in 1979.

     Leslie  John  Kent has been  Marketing  Director  of  Lightseek  since  its
inception in May, 1999 and,  Secretary/Treasurer  of our company since February,
2000.  From 1988 to 1999, he was a partner,  with Tim Rosen,  our President,  in
Rosen & Kent, a management  consultancy.  The  partnership  also  incubates  new
business  ventures.  Since 1988,  he has also been a director in Litech  Ltd., a
specialist fiber optic lighting provider for the commercial  lighting  industry.
From 1983 to 1988, Mr. Kent was a director of OmniMedia plc, a digital video and
CD-ROM  publisher/developer which traded on the Alternative Investment Market of
the London Stock Exchange.  From 1983 to 1988, Mr. Kent was a director of Oxford
House College,  a London-based  computer  training and language school which was
sold to its  employees.  He was also a  director,  from 1983 to 1988 of Catalyst
Communications Group plc, a marketing and media group quoted on the London Stock
Exchange which was sold to another public company,  Holmes & Marchant plc. Rosen
& Kent founded  Homeshield  Warranty,  Co. Ltd. in 1982 as a joint  venture with
Pentland Industries plc, an English public company. Homeshield marketed extended
warranties  for household  appliances  and was sold to a trade buyer in 1984. In
1981, Mr. Kent was an advertising  account manager at Boase Massimi Pollity plc,
from 1979 to 1981 for Grey  Advertising  and from 1977 to 1979 for Ted Bates. He
is an associate member of the Institution of Lighting Engineers and Secretary of
The Fibre Optic  Lighting  Association.  Mr. Kent received his Master of Arts in
Philosophy,  Politics and Economics from St. Edmund Hall, Oxford University,  in
1977.

     Joseph  Donahue has been  principal and  President  since 1994 of Donahue &
Associates,  Trumbull,  Connecticut, a financial consultancy which initiates and
arranges  acquisitions.  From  1982 to 1994,  he was  Executive  Vice-President,
Corporate Finance of Sterling & Company,  Los Angeles,  California.  Mr. Donahue
was International  Investment Director of Specialized Systems,  Inc., San Diego,
California  in 1981 and a consultant  and  principal,  from 1973 to 1981, in the
purchase,  sale, exchange,  salvage and chartering and management of yachts. He
received his B.A. in European  History from the  University of California at San
Diego in 1973 and  attended  University  of Mexico  in 1971 and San  Diego  City
College in 1970.

     Alexander R.  Lupinetti as been a Director of CSPI since 1996;  Chairman of
the Class III Board of Directors since January 1998; Chief Executive Officer and
President of CSPI since October 1996;  President and Chief Executive  Officer of
each of TCAM Systems Inc., Shared Systems Corporation and SoftCom Systems, Inc.,
subsidiaries of Stratus Computer Inc., from 1987 to 1996.

                                       29
<PAGE>

Board Committees
- ----------------

     The Audit  Committee of our Board  consists of Joseph Donahue and Alexander
Lupinetti.  The Audit Committee reviews our financial  statements and accounting
practices,  makes  recommendations  to our  board  regarding  the  selection  of
independent  auditors  and  reviews the results and scope of the audit and other
services provided by our independent auditors. The Compensation Committee of our
Board  consists of Joseph  Donahue and  Alexander  Lupinetti.  The  Compensation
Committee makes  recommendations to the Board concerning  salaries and incentive
compensation for our officers and employees and administers our employee benefit
plans.

Compensation Committee Interlocks and Insider Participation

     None of the members of the  compensation  committee of our board was at any
time since our formation one of our officers or employees.

Director Compensation

     Our  directors  do not  receive  cash  compensation  for their  services as
directors but are reimbursed for their  reasonable  expenses for attending board
and board committee meetings.

Executive Compensation

     The  following  table shows  compensation  earned during fiscal 1999 by our
President.  The  information  in the table  includes  salaries,  bonuses,  stock
options granted and other miscellaneous  compensation.  No executive officer who
held office at December 31, 1999 received total annual compensation in excess of
$100,000 in 1999.

                           Summary Compensation Table

<TABLE>
<CAPTION>
                                                                                Long-Term and Other
                                                 Annual Compensation               Compensation
                                          ---------------------------------   -----------------------
                                                                              Number of
                                                                              Securities
                                   Fiscal                    Other Annual     Underlying    All Other
Name and 1999 Principal Positions   Year   Salary  Bonus(1) Compensation(2)    Options     Compensation
- ---------------------------------  ------ -------- -------- ---------------   ----------   ------------
<S>                                <C>    <C>      <C>      <C>               <C>          <C>
Tim Rosen                          1999   None     None      None             None         None


</TABLE>
- --------

                                       30
<PAGE>

     The  following  executive  officers  received  grants  of  options  in 2000
pursuant to the Year 2000 Stock Option Plan.

                           Option Grants During 2000

<TABLE>
<CAPTION>
                                      Percentage
                                       of Total
                          Number of    Options                              Potential Realizable Value at
                         Securities   Granted to                          Assumed Annual Rates of Stock Price
                         Underlying   Employees    Exercise                  Appreciation for Option Term(2)
                          Options      during     Price Per   Expiration    ----------------------------------
Name                     Granted(1)     2000        Share        Date          0%          5%          10%
- - ----                     ---------- ----------   ---------  ----------     ----------- ----------- --------
<S>                       <C>          <C>          <C>       <C>            <C>         <C>         <C>
Tim Rosen                 250,000      16.7%        $1.00     4 Years        0           53,877      116,025

Leslie Kent               250,000      16.7%        $1.00     4 Years        0           53,877      116,025

Joseph Donahue            250,000      16.7%        $1.00     4 Years        0           53,877      116,025

Alexander Lupinetti       250,000      16.7%        $1.00     4 Years        0           53,877      116,025
</TABLE>

- ------------

(1)  Options  granted in 2000 were granted under the Year 2000 Plan. All options
     granted were  immediately  exercisable and were either  nonstatutory  stock
     options.  These  options were granted by our board of directors  and vested
     immediately.

(2)  Since we are not  public,  the market  price as of the date of  issuance is
     assumed to be $1.00 as this is the exercise price of the options as well as
     all outstanding warrants.

Compensation Arrangements

     We have not entered into  employment  contracts  with any of our management
employees.  Mr. Rosen and Mr. Kent are  compensated  at the rate of $150,000 per
annum. Both also receive health insurance and a vehicle allowance.

Indemnification of Directors and Executive Officers and Limitation of Liability

     Section 145 of the Delaware  General  Corporation Law authorizes a court to
award, or a corporation's board of directors to grant indemnity to directors and
officers  in terms  sufficiently  broad to  permit  such  indemnification  under
certain  circumstances  for liabilities  (including  reimbursement  for expenses
incurred) arising under the Securities Act.

     As  permitted  by  the  Delaware  General   Corporation  Law,  our  amended
certificate of  incorporation  includes a provision that eliminates the personal
liability of our directors for monetary  damages for breach of fiduciary duty as
a director,  except for liability (1) for any breach of the  director's  duty of
loyalty to the Company or its  stockholders,  (2) for acts or  omissions  not in
good faith or that involve intentional misconduct or a knowing violation of law,
(3)  under  section  174 of the  Delaware  General  Corporation  Law  (regarding
unlawful  dividends and stock  purchases) or (4) for any transaction  from which
the director derived an improper personal benefit.

                                       31
<PAGE>

     As permitted by the Delaware  General  Corporation  Law, our Bylaws provide
that (1) the  Company is required  to  indemnify  its  directors  and  officers,
consultants  and  employees  to the fullest  extent  permitted  by the  Delaware
General  Corporation  Law,  subject to certain very limited  exceptions,  we are
required to advance expenses, as incurred, in connection with a legal proceeding
to the fullest extent permitted by the Delaware General Corporation Law, subject
to certain very limited  exceptions,  and the rights conferred in the our Bylaws
are not exclusive.

     We have not obtained directors' and officers' liability insurance.

                        CERTAIN RELATED PARTY TRANSACTIONS

     On March 2, 2000, we purchased all the capital stock of Lightseek  from its
owners,  including  Tim Rosen,  President  and  Leslie  Kent,  Treasurer  for an
aggregate  of  14,250,000  shares.  On that  date,  we  also  paid  for  certain
consulting expenses 750,000 shares of our common stock, including 375,000 shares
to Joseph  Donahue,  a  Director.  We have  awarded an  aggregate  of  1,000,000
nonstatutory stock options exercisable at $1.00 pursuant to our Year 2000 Option
Plan to our  directors  and an aggregate of 300,000  bonus options to members of
our committees and consultants.

     On March 2, 2000,  we sold  2,000,000  shares of our common stock and three
redeemable  common  stock  purchase  warrants  (Class  A,  Class B and  Class C)
carrying the right to purchase in the aggregate 3,000,000 of our shares to CSPI.
The options are  exercisable at $1.00.  CSPI intends to distribute as a dividend
approximately 750,000 of our shares ratable to the holders of its common stock.

     Tim Rosen, President, and Leslie Kent, Treasurer,  each receive a salary of
$150,000 per annum.  Joseph  Donahue,  Director,  received a  consulting  fee of
$75,000.

                       PRINCIPAL AND SELLING STOCKHOLDERS

     The  following  table  sets  forth  certain  information  with  respect  to
beneficial  ownership  of  our  Common  Stock  as of  March  24,  2000  by  each
stockholder known by us to be the beneficial owner of more than 5% of our Common
Stock, each of our directors and executive officers,  all executive officers and
directors as a group and the selling stockholder.

                                         Shares of Common Stock
                                           Beneficially Owned(1)
                                    Prior to                 After
                                Warrant Exercise          Warrant Exercise
                               ------------------         ----------------
Name                             Number   Percent      Number     Percent
- ----                           ---------- -------     ---------   -------

Tim Rosen                     7,025,000       41.3%  7,025,000     34.7%

Leslie Kent                   7,025,000       41.3%  7,025,000     34.7%

Joseph Donahue                  375,000        2.2%    375,000      1.4%

Alexander Lupinetti                   0        -0-%          0      -0-%

CSP Inc.                      2,000,000       11.8%  1,300,000 (2)  6.4%

Directorss and officers
(4 persons)                  14,425,000       84.9% 14,425,000     71.3%
- -----------

(1)  Beneficial  ownership is  determined  in  accordance  with the rules of the
     Securities  and  Exchange  Commission  and  generally  includes  voting  or
     investment  power with respect to securities.  Unless  otherwise  indicated
     below,  the persons and entity named in the table have sole voting and sole
     investment power with respect to all shares beneficially owned,  subject to
     community  property  laws  where  applicable.  Shares of our  common  stock
     underlying   warrants  or  options  that  are  currently   exercisable   or
     exercisable  within 60 days of March 28, 2000 are deemed to be  outstanding
     and to be  beneficially  owned by the person  holding  such options for the
     purpose of computing  the  percentage  ownership of such person but are not
     treated  as  outstanding  for  the  purpose  of  computing  the  percentage
     ownership  of any other  person.  The above table does not  include  shares
     underlying  bonus options since no such options are  exercisable  within 60
     days of March 28, 2000.

     The percentage of beneficial ownership is based on 17,000,000 shares of our
     common stock  outstanding as of March 28, 2000 and, after warrant exercise,
     on 20,225,000 shares of our common stock outstanding.

(2)  CSPI intends to  distribute  approximately  700,000 of our shares of common
     stock ratably to its  stockholders  shortly after the effective date of the
     registration statement of which this prospectus is a part.

                                       32
<PAGE>

                          DESCRIPTION OF SECURITIES
Common Stock
- ------------

     We are  authorized to issue 50 million  shares of common  stock,  $.001 par
value per share, of which 17,000,000 shares are issued and outstanding as of the
date of the prospectus.  Each  outstanding  share of common stock is entitled to
one vote, either in person or by proxy, on all matters that may be voted upon by
their holders at meetings of the stockholders.

     Holders of our common stock (i) have equal ratable rights to dividends from
funds legally available  therefor,  if declared by our board of directors;  (ii)
are entitled to share ratably in all of our assets available for distribution to
holders of common stock upon our  liquidation,  dissolution or winding up; (iii)
do not have  preemptive,  subscription  or conversion  rights,  or redemption or
sinking fund provisions;  and (iv) are entitled to one  non-cumulative  vote per
share on all  matters  on which  stockholders  may vote at all  meetings  of our
stockholders.  Cumulative  voting for the  election of directors is not provided
for in our amended certificate of incorporation, which means that the holders of
a majority of the shares voted can elect all of the directors  then standing for
election.

     Subject  to  preferences  that  may  apply to  shares  of  preferred  stock
outstanding at the time,  the holders of outstanding  shares of our common stock
are entitled to receive  dividends out of legally available at such times and in
such amounts as our board of  directors  may from time to time  determine.  Each
stockholder  is entitled to one vote for each share of our common  stock held on
all  matters  submitted  to a vote of  stockholders.  Our  common  stock  is not
entitled to preemptive  rights and is not subject to  conversion or  redemption.
Upon a liquidation,  dissolution or winding-up, the assets legally available for
distribution to stockholders are distributable  ratably among the holders of our
common stock and any  participating  preferred  stock  outstanding  at that time
after payment of liquidation  preferences,  if any, on any outstanding preferred
stock and payment of other claims of creditors.  Each  outstanding  share of our
common stock is, and all shares of common stock to be outstanding  upon exercise
of the warrants will be, fully paid and nonassessable.

Preferred Stock
- ---------------

     We may,  subject to limitations  prescribed by Delaware law, to provide for
the issuance of up to  5,000,000  shares of our  preferred  stock in one or more
series,  to  establish  from time to time the number of shares to be included in
each such series, to fix the rights, preferences and privileges of the shares of
each wholly unissued series and any qualifications,  limitations or restrictions
thereon,  and to increase  or  decrease  the number of shares of any such series
(but not below the number of shares of such series then outstanding) without any
further vote or action by the stockholders. Our board of directors may authorize
the  issuance of  preferred  stock with voting or  conversion  rights that could
adversely  affect the voting  power or other rights of the holders of our common
stock.  The  issuance  of  preferred  stock,  while  providing   flexibility  in
connection with possible acquisitions and other corporate purposes, could, among
other things,  have the effect of delaying,  deferring or preventing a change in
control and may  adversely  affect the market  price of the common stock and the
voting and other rights of the holders of common stock. We have no current plans
to issue any shares of preferred stock.

                                       33
<PAGE>

Common Stock Purchase Warrants
- ------------------------------

     We have issued to CSPI three  classes of redeemable  common stock  warrant.
Each class is exercisable  for a period of two years  commencing the date of the
prospectus. Each warrant entitles the holder to purchase one share of our common
stock at an exercise  price of $1.00.  The common stock  underlying the warrants
will,  upon  exercise  of the  warrants,  be  validly  issued,  fully  paid  and
non-assessable.  The warrants will be subject to  redemption,  at any time,  for
$0.001 per  warrant,  upon 30 days' prior  written  notice  under the  following
circumstances:  as to the "A"  Warrants,  in the  event  there  is an  effective
registration statement relating to the shares underlying the "A" warrants; as to
the "B"  Warrants  in the event  there is an  effective  registration  statement
relating to the shares underlying the "B" warrants and, in addition,  if the bid
closing  price on the  market in which our common  stock  trades for a period of
twenty  consecutive days exceeds $2.00 per share ending within ten days prior to
the date of the notice of redemption;  and as to  the "C" Warrants, in the event
there is an effective  registration  statement relating to the shares underlying
the "C"  warrants  and, in addition,  if the bid closing  price on the market in
which our common  stock trades for a period of twenty  consecutive  days exceeds
$2.00  per  share  ending  within  ten days  prior to the date of the  notice of
redemption.

     The  warrants  can only be  exercised  when  there is a  current  effective
registration  statement covering the underlying shares of common stock. If we do
not obtain or are unable to maintain a current effective registration statement,
warrantholders  will be unable to exercise  them and they may become  valueless.
Moreover,  if the  shares  of  common  stock  underlying  the  warrants  are not
registered or qualified for sale in the  state in which a warrantholder resides,
such holder might not be permitted  to exercise  any  warrants.

     Warrants may be exercised by surrendering the warrant certificate, with the
form of  election  to  purchase  printed  on the  reverse  side  of the  warrant
certificate  properly  completed  and  executed,  together  with  payment of the
exercise price,  to us or the warrant agent.  Warrants may be exercised in whole
or from time to time in part.  If less than all of the  warrants  evidenced by a
warrant certificate are exercised,  a new warrant certificate will be issued for
the remaining number of unexercised warrants.

     Warrantholders  are  protected  against  dilution  of the  equity  interest
represented  by the  underlying  shares of common stock upon the  occurrence  of
certain events,  including,  but not limited to, issuance of stock dividends. If
we merge, reorganize or are acquired in such a way as to terminate the warrants,
they  may be  exercised  immediately  prior  to such  action.  In the  event  of
liquidation, dissolution or winding up, holders of the warrants are not entitled
to participate in our assets.

     For the life of the warrants,  holders are given the  opportunity to profit
from a rise in the  market  price  of our  common  stock.  The  exercise  of the
warrants  will result in the dilution of the then book value of our common stock
and would  result in a dilution of the  percentage  ownership  of then  existing
stockholders.  The terms  upon  which we may obtain  additional  capital  may be
adversely affected through the period in which the warrants remain  exercisable.
The holders of these warrants may be expected to exercise them at a time when we
would,  in all  likelihood,  be able to  obtain  equity  capital  on terms  more
favorable than those provided for by the warrants.

     We have  issued to  certain  consultants  and have sold to  holders of CSPI
bonus options, in proportion to their holdings,  our Class "D" Warrants.  We may
not redeem these warrants, but otherwise they are identical to the other classes
of warrant.

                                       34
<PAGE>

Registration Rights
- -------------------

     Pursuant to a  registration  rights  agreement  between us and CSPI,  dated
March 2, 2000, we agreed to file a registration statement relating to the shares
of our common stock issued to CSPI and the shares of our common stock underlying
the warrants issued to CSPI and issued to CSPI bonus option  holders.  We agreed
to  assume  all  registration  expenses  pursuant  to  the  registration  rights
agreement.  In the event, the registration  statement is not effective within 90
days of the date of the  agreement,  we have agreed to issue to CSPI  additional
shares of our common stock equal to one percent of the shares  purchased by CSPI
for each full month,  prorated daily, after 90 days, continuing through the date
the  registration  statement is declared  effective by the SEC. Our  obligations
will expire upon the earlier of the effectiveness of the registration  statement
or the date all of the shares covered by the  registration  rights agreement may
be sold by under Rule 144 under the Securities Act without volume restrictions.

Future Financing
- ----------------

     In the event the  proceeds  of  warrant  exercise  are not  sufficient  the
development  and growth of our business,  we may seek additional  financing.  At
this time we believe that the proceeds of exercise of existing warrants, will be
sufficient  for such purpose and therefore do not expect to issue any additional
securities at this time. However, we may issue additional securities, incur debt
or procure  other types of  financing  if needed.  We have not entered  into any
agreements,  plans or  proposals  for such  financing  and as of present have no
plans to do so. If we require additional  financing,  there is no guarantee that
such  financing will be available to us or if available that such financing will
be on terms acceptable to us.

Reports to Stockholders
- -----------------------

     We intend to  furnish  our  stockholders  with  annual  reports  containing
audited financial statements as soon as practicable after the end of each fiscal
year. Our fiscal year ends on December 31st.

Dividends
- ---------

     We have only been  recently  organized,  have no earnings  and have paid no
dividends to date. We anticipate that we will reinvest all earnings,  if any, in
our  business  and  do not  anticipate  declaring  or  paying  dividends  in the
foreseeable future.

Transfer Agent
- --------------

     We have  appointed  Olde Monmouth  Stock  Transfer  Co.,  Inc., 77 Memorial
Parkway,  Suite 101, Atlantic Highlands,  New Jersey 07716 as transfer agent for
our shares of common stock and our warrants.

                                       35
<PAGE>

                             PLAN OF DISTRIBUTION

Conduct of the Offering
- -----------------------

     CSPI has indicated to us that it intends to distribute to its  stockholders
approximately  750,000  shares of our  common  stock on a basis of one share for
every five shares owned.

     We have retained no  broker-dealer  in connection with the  distribution of
our shares to the  stockholders  of CSPI nor in connection  with the exercise of
our warrants by CSPI or of the sale of the shares of our common stock underlying
the warrants.

Method of Subscribing
- ---------------------

     CSPI, its transferees,  if any, or other  warrantholders may exercise their
warrants by filling in and signing the  exercise  sheet  attached to the warrant
and delivering it to us prior to the expiration date of each warrant. Exercising
warrantholders  must pay $1.00 in cash or by check, bank draft or postal express
money order payable in United States dollars to  "VerticalBuyer,  Inc." for each
share  they  desire to  purchase  and,  in the event of partial  exercise,  will
receive  from us a new  warrant  representing  the  right  to  subscribe for the
remaining shares of our common stock.

                        SHARES ELIGIBLE FOR FUTURE SALE

     Upon exercise of the warrants,  assuming no exercise of  outstanding  bonus
options,  we will have  outstanding  20,000,000  shares of our common stock.  Of
these shares,  the 3,225,000 shares  registered  herein or underlying  warrants,
when exercised, will be freely tradable without restriction under the Securities
Act unless  purchased  by our  "affiliates"  as that term is defined in Rule 144
under the  Securities  Act. These shares will be eligible for sale in the public
market,  subject to certain volume  limitations and the expiration of applicable
holding periods under Rule 144 under the Securities Act.

     In general,  under Rule 144 as  currently  in effect,  a person (or persons
whose shares are aggregated) who has beneficially owned restricted shares for at
least one year  (including  the  holding  period of any  prior  owner  except an
affiliate)  would be entitled to sell within any three-month  period a number of
shares  that does not  exceed  the  greater of (1) 1% of the number of shares of
Common Stock then  outstanding  (which will equal  approximately  200,000 shares
immediately  after warrant exercise) or (2) the average weekly trading volume of
the Common Stock during the four calendar  weeks  preceding the filing of a Form
144 with respect to such sale.  Sales under Rule 144 are also subject to certain
manner of sale  provisions and notice  requirements  and to the  availability of
current public information about the Company. Under Rule 144(k), a person who is
not deemed to have been an affiliate of the Company at any time during the three
months preceding a sale, and who has  beneficially  owned the shares proposed to
be sold for at least two years  (including the holding period of any prior owner
except an affiliate), is entitled to sell such shares without complying with the
manner of sale,  public  information,  volume limitation or notice provisions of
Rule 144.

     We have not filed a registration  statement  relating to the shares subject
to outstanding options under our Year 2000 Option Plan.

     We can offer no assurance  that an active  public market in our shares will
develop.  Future sales of substantial  amounts of our shares  (including  shares
issued  upon  exercise  of  outstanding  options)  in the  public  market  could
adversely affect market prices prevailing from time to time and could impair the
our ability to raise capital through the sale of our equity securities.

                                       36
<PAGE>

                       WHERE YOU CAN FIND MORE INFORMATION

     We  have  not  previously  been  required  to  comply  with  the  reporting
requirements  of the  Securities  Exchange  Act.  We have  filed  with the SEC a
registration  statement  on form SB-2 to register the shares of our common stock
issued to CSPI and the shares underlying the warrants. The prospectus is part of
the  registration  statement,  and, as permitted  by the SEC's  rules,  does not
contain  all of the  information  in the  registration  statement.  For  further
information  about us and the securities  offered under the prospectus,  you may
refer to the registration statement and to the exhibits and schedules filed as a
part of this registration  statement.  You can review the registration statement
and its  exhibits  at the public  reference  facility  maintained  by the SEC at
Judiciary Plaza, Room 1024, 450 Fifth Street, N.W.,  Washington,  D.C. 20549 and
at the  regional  offices of the SEC at 7 World Trade  Center,  Suite 1300,  New
York, New York 10048 and Citicorp  Center,  Suite 1400, 500 West Madison Street,
Chicago,  Illinois  60661.  Please  call the SEC at  1-800-SEC-0330  for further
information on the public  reference  room. The  registration  statement is also
available electronically on the World Wide Web at http://www.sec.gov.

     You can also call or write us at any time with any  questions you may have.
We would be pleased to speak with you about any aspect of our  business  and the
shares of our common stock underlying the warrants.

                              LEGAL PROCEEDINGS

     We not a party to nor are we aware of any  existing,  pending or threatened
lawsuits or other legal actions.

                                LEGAL MATTERS

     Roger L. Fidler,  Esq., 163 South Street,  Hackensack,  New Jersey 07601 is
passing upon the validity of the shares to be sold by selling stockholders,  and
the shares underlying the warrants.

                             FINANCIAL STATEMENTS

     The following  are our financial  statements,  with  independent  auditor's
report for  Lightseek  Limited for the period from  inception,  May 13, 1999, to
December 31, 1999.


                                       37
<PAGE>




                                LIGHTSEEK LIMITED


                              FINANCIAL STATEMENTS


         PERIOD FROM MAY 13, 1999 (INCEPTION) THROUGH DECEMBER 31, 1999


                                      with


                          INDEPENDENT AUDITOR'S REPORT











<PAGE>














                                LIGHTSEEK LIMITED

                                TABLE OF CONTENTS




                                                                Page

FINANCIAL STATEMENTS

      Independent Auditor's Report                                1

      Balance Sheet                                               2

      Statement of Operations                                     3

      Statement of Stockholders' Equity                           4

      Statement of Cash Flows                                     5

      Notes to Consolidated Financial Statements                6-8






















<PAGE>




                          INDEPENDENT AUDITOR'S REPORT



To the Stockholders
Lightseek Limited


     We have audited the  accompanying  balance sheet of Lightseek  Limited (the
"Company")  as of December 31, 1999,  and the related statements of  operations,
stockholders' equity and cash flows for the period from May 13, 1999 (inception)
through December 31, 1999. These financial  statements are the responsibility of
the Company's  management.  Our responsibility is to express an opinion on these
financial statements based on our audit.

     We conducted  our audit in  accordance  with  generally  accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audit provides a reasonable basis for our opinion.

     In our opinion,  the financial statements referred to above present fairly,
in all material  respects,  the financial position of the Company as of December
31, 1999,  and the results of its  operations  and its cash flows for the period
then ended in conformity with generally accepted accounting principles.



                                       /s/ Leslie Sufrin & Company, LLC
                                       --------------------------------
                                           Leslie Sufrin & Company, LLC

March 13, 2000





<PAGE>






                                       F-1


<PAGE>


                                LIGHTSEEK LIMITED
                                  BALANCE SHEET
                                December 31, 1999



ASSETS
Current assets:
    Accounts receivable                                        $   1,565
    Prepaid expenses                                               7,591
                                                               ----------
           Total current assets                                    9,156

Purchased software, net of accumulated
    depreciation of $7,729                                        38,653
                                                               ----------
                                                               $  47,809
                                                               ==========

LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)
Current liabilities:
    Cash overdraft                                             $     423
    Accrued expenses                                               7,881
    Due to affiliate (Note 4)                                     53,069
    Deferred revenue                                              10,094
                                                               ----------
           Total current liabilities                              71,467

Stockholders' equity:
    Common stock, $1.61 par value; 100,000 shares
      authorized, 1,000 issued and outstanding                     1,615
    Accumulated (deficit)                                        (25,273)
                                                               ----------
           Total stockholders' equity                            (23,658)

                                                               $  47,809
                                                               ==========












                             See accompanying notes.

                                      F-2

<PAGE>



                                LIGHTSEEK LIMITED
                             STATEMENT OF OPERATIONS
     For the Period from May 13, 1999 (Inception) through December 31, 1999




Revenues                                             $  21,945

Cost of sales                                           22,025
                                                     ----------
Gross profit                                               (80)

Operating expenses:
    Sales and marketing                                  3,165
    Product development                                 13,686
    General and administrative                           8,342
                                                     ----------
      Total operating expenses                          25,193
                                                     ----------
Net (loss)                                           $ (25,273)
                                                     ==========





























                             See accompanying notes.

                                       F-3

<PAGE>


                                LIGHTSEEK LIMITED
                        STATEMENT OF STOCKHOLDER'S EQUITY
     For the Period from May 13, 1999 (Inception) through December 31, 1999


                                   Common Stock       Accumulated
                                Shares      Amount     (Deficit)       Total
                                ------      ------    ------------     -----

Balance, at inception            1,000      $1,615   $        -      $   1,615

Net (loss)                           -           -      (25,273)       (25,273)
                                 -----      -------   ----------     ----------

Balance, December 31, 1999       1,000      $1,615   $  (25,273)     $ (23,658)
                                 =====      =======  ===========     ==========






































                             See accompanying notes.

                                       F-4

<PAGE>



                                LIGHTSEEK LIMITED
                             STATEMENT OF CASH FLOWS
     For the Period from May 13, 1999 (Inception) through December 31, 1999



Operating activities:
    Net (loss)                                                      $(25,273)
    Adjustments to reconcile net (loss) to net cash
      provided by operating activities:
        Depreciation of property and equipment                         7,729
        Change in operating assets and liabilities:
          Accounts receivable                                         (1,565)
          Prepaid expenses                                            (7,591)
          Accrued expenses                                             7,881
          Deferred revenue                                            10,094
                                                                      -------
             Net cash provided by operating activities                (8,725)
                                                                      -------

Investing activities:
   Acquisition of property and equipment                             (46,382)
                                                                     --------
             Net cash (used in) investing activities                 (46,382)
                                                                     --------

Financing activities:
   Proceeds from issuance of common stock                              1,615
   Due to affiliate                                                   53,069
                                                                     --------
             Net cash provided by financing activities                54,684
                                                                     --------

Decrease in cash                                                        (423)

Cash - beginning of period                                                 -
                                                                      -------
Cash - end of period                                               $    (423)
                                                                      =======



Supplemental disclosure of cash flow information:
    Cash paid during the period for:
        Interest                                                  $       20
        Income taxes                                              $        -













                                      F-5

<PAGE>


                                LIGHTSEEK LIMITED
                          NOTES TO FINANCIAL STATEMENTS
                                December 31, 1999

Note 1 - Organization and nature of business

     Lightseek Limited (the "Company") was incorporated in the United Kingdom on
May 13, 1999. The Company is principally  engaged in the development of Internet
sites designed to exploit business-to-business e-commerce Internet opportunities
within the global commercial electrical and lighting markets.

Note 2 - Summary of significant accounting policies

     The following summary of the Company's  significant  accounting policies is
presented as an integral part of the accompanying financial statements.

     Use of estimates

     The  preparation  of financial  statements  in  accordance  with  generally
accepted  accounting  principles  requires  management  to  make  estimates  and
assumptions  that affect the reported  amounts of assets and  liabilities at the
date of the  financial  statements  and the  reported  amounts of  revenues  and
expenses  during the reporting  period.  Actual  results could differ from those
estimates.

     Concentrations of credit risk

     The Company's  financial  instruments that are exposed to concentrations of
credit risk consist primarily of cash and trade accounts receivable. The Company
currently places all of its cash with one financial  institution and believes it
is not  exposed to any  significant  credit risk on cash.  The  Company  extends
credit to its customers  based upon an evaluation  of the  customer's  financial
condition and credit  history.  The Company since inception has not incurred any
credit  losses and  believes  that its trade  accounts  receivable  credit  risk
exposure is limited.

     Property and equipment

     Purchased   software  and  computer   equipment  are  stated  at  cost  and
depreciated  using the  straight-line  method over the estimated useful lives of
the respective assets, which is 3 years.

     Revenue recognition

     The Company's revenues are derived  principally from the sale of banner and
sponsorship   advertisements.   Advertising   revenues   from  both  banner  and
sponsorship  contracts  are  recognized  ratably  over the  period  in which the
advertisement is displayed.

     Cost of sales

     Cost of sales  consists of expenses  associated  with the production of the
Company's online media properties. These costs consist primarily of fees paid to
third  parties for Website  hosting  charges and the  depreciation  of purchased
software and computer equipment.

                                      F-6
<PAGE>


Note 2 - Summary of significant accounting policies

     Product development expenses

     Product development expenses are primarily attributable to consulting costs
related to enhancing the features and  functionality  of the Company's Web sites
and  transaction-processing  systems, as well as increased investment in systems
and  telecommunications   infrastructure  and  new  product  offerings.  Product
development costs are generally  expensed as incurred,  except for certain costs
relating to the  acquisition or development  of  internal-use  software that are
capitalized  in  accordance  with the American  Institute  of  Certified  Public
Accountant's  Statement  of  Position  No.  98-1  "Accounting  for the  costs of
computer software developed or obtained for internal use."

     Foreign currency translation gain or (loss)

     The Company's  functional  currency is the British Pound.  The accompanying
financial  statements  have been  translated  to United  States  dollars using a
year-end  rate of exchange  for assets and  liabilities,  and  average  rates of
exchange for revenues and expenses.  Translation  gains (losses) are included in
comprehensive  income and accumulated as a separate  component of  stockholders'
equity.  The weighted  average  exchange  rate of the British  Pound to the U.S.
Dollar  for the period  from May 13  through  December  31,  1999 was  virtually
identical  to the  year-end  rate of  exchange  and,  accordingly,  there was no
transaction gain or loss for this period.

     Income taxes

     Deferred income taxes are provided on a liability  method whereby  deferred
tax assets are  established for the difference  between the financial  reporting
and income tax basis of assets.  Deferred  tax assets are reduced by a valuation
allowance  when, in the opinion of  management,  it is more likely than not that
some portion or all of the  deferred  tax assets will be realized.  Deferred tax
assets and  liabilities  are adjusted for the effects of changes in tax laws and
rates on the date of enactment.

Note 3 - Due to affiliate

     At December 31, 1999,  the Company owed an  affiliated  entity  $53,069 for
cash  advances  and  certain  software  acquisitions  paid on its  behalf.  This
affiliate payable is non-interest bearing.


Note 4 - Commitments

     The Company has an agreement with an investment banking firm under which it
has agreed to pay a fund  raising  fee of 7% of all funds  raised as a result of
such firms direct  involvement in all successful issues,  including  convertible
securities,  debt, cash injections and equity issues.  In future successful fund
raising efforts whereby the investment banking firm is indirectly involved in an
intermediary position, the fee will be reduced to 1.5% of the amount raised.

Note 5 - Subsequent events

     On February  24,  2000,  the Company  acquired  certain  Domain Names and a
Web-site with the URL lightingbuyer.com  from the shareholders of the Company in
exchange for 13,250 shares of the Company's authorized common stock.






                                   F-7
<PAGE>





Note 5 - Subsequent events (continued)

     On March 1, 2000,  the  Company was  acquired by and became a  wholly-owned
subsidiary of VerticalBuyer, Inc., a Delaware corporation ("VerticalBuyer").  On
that date,  VerticalBuyer  issued  14,250,000  shares of its common stock to the
shareholders of the Company in exchange for all of the outstanding  common stock
of the Company. The acquisition will be accounted for as a pooling of interests.

     On March 2, 2000,  VerticalBuyer  entered  into a  Securities  Purchase and
Facilities  Agreement (the  "Agreement")  with CSP Inc., a U.S.  publicly traded
company   ("CSPI"),   under  which  CSPI   purchased   two  million   shares  of
VerticalBuyer's  common  stock and  redeemable  warrants  to  purchase  up to an
additional three million shares of such stock for an aggregate purchase price of
$2 million. The three classes of warrants (Class A, Class B and Class C) entitle
CSPI,  subject to certain  conditions and the occurrence of certain  events,  to
purchase up to one million  shares each of  VerticalBuyer's  common  stock at an
exercise  price of $1 per share.  The warrants are excisable for a period of two
years beginning on the effective date of a registration  statement  covering the
underlying  shares.  In a  Memorandum  of  Understanding  that was  executed  in
connection  with the  Agreement,  CSPI agreed to provide  VerticalBuyer  free of
charge  approximately  1,000 square feet of office space and various  accounting
services for a period of six months.  After the six-month period,  VerticalBuyer
and CSPI will  negotiate a fee structure for the ongoing use of the office space
and accounting services.












                                      F-8

<PAGE>


                               VERTICALBUYER, INC.
                 UNAUDITED PRO-FORMA CONSOLIDATED BALANCE SHEET
                             As of December 31, 1999


                                  Lightseek      Pro-Forma
                                   Limited      Adjustments        Pro-Forma
                                 ---------------------------------------------
ASSETS
Current assets:
  Cash and cash equivalents     $       -      $  5,085,000 (a)   $  5,085,000
  Accounts receivable               1,565                                1,565
  Prepaid expenses                  7,591                                7,591
                                  --------     -------------      -------------
    Total current assets            9,156         5,085,000          5,094,156

Property & equipment, net          38,653                               38,653
                                  --------     -------------      -------------
                                $  47,809      $  5,085,000       $  5,132,809

LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Cash overdraft                $     423                         $        423
  Accrued expenses                  7,881                                7,881
  Due to affiliate                 53,069                               53,069
  Deferred revenue                 10,094                               10,094
                                  --------     -------------     -------------
    Total current liabilities      71,467                               71,467


Stockholders' equity:
  Common stock                      1,615             5,975 (a)         7,590
  Additional paid-in capital                      5,079,025 (a)     5,079,025
  Retained earnings               (25,273)                            (25,273)
    Total stockholders' equity    (23,658)        5,085,000         5,061,342
                                  --------     -------------      ------------
                                $  47,809      $  5,085,000       $ 5,132,809
                                ==========     ==============     ============

                                      F-9

 <PAGE>

a.   Reflects the impact on cash and
     stockholders' equity of the following:
                                                            Additional
                                                  Common     Paid-in
                                                   stock     Capital    Total
                                                --------------------------------
(i)      the issuance of VerticalBuyer's
         common stock and warrants to
         CSP Inc. ("CSPI")                      $  2,000  $1,998,000 $2,000,000

(ii)     the exercise of CSPI's Class A, B and
         C warrants to purchase the stock of
         VerticalBuyer on the effective date
         of the Registration Statement covering
         the shares underlying the warrant         3,000   2,997,000  3,000,000

(iii)    the issuance of 750,000 shares of
         Vertical Buyer's Common Stock in
         payment of certain consulting fees
         incurred in connection with raising
         capital                                      750       (750)         0

(iv)     to record fund raising fees payable
         equal to 7% of the $2 million stock
         acquisition by CSPI                            0   (140,000)  (140,000)

(v)      the exercise of Class D warrants held
         by certain other investors                   225    224,775    225,000
                                                 -------- ---------- -----------
                                                 $  5,975 $5,079,025 $5,085,000




                               VERTICALBUYER, INC.
       UNAUDITED PRO-FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS
                      For the Year Ended December 31, 1999
                                 (In thousands)


                        Lightseek        Pro-Forma
                        Limited         Adjustments             Pro-Forma
                        ---------       -----------             ---------

Revenues               $ 21,945          $    -                 $  21,945

Cost of sales            22,025                -                   22,025
                       ---------         ----------             ----------
Gross profit                (80)               -                      (80)

Operating expenses       25,193                -                   25,193
                       ---------         ----------             ----------
Net (loss)             $(25,273)         $     -                $ (25,273)
                       =========         ==========             ==========


                                      F-10

<PAGE>















                                  F-11


<PAGE>

               UNAUDITED PRO FORMA COMBINED FINANCIAL INFORMATION


     The following Unaudited Pro Forma Consolidated  Financial  Information (the
"Pro  Forma  Financial  Information")  is  based  on  the  historical  financial
statements of Lightseek  Limited and has been prepared to illustrate the effects
of the acquisition of Lightseek by VerticalBuyer.

     The Unaudited Pro Forma Consolidated  Balance Sheet as of December 31, 1999
has been  prepared as if the  acquisition  of  Lightseek  by  VerticalBuyer  had
occurred  on that  date.  The  Unaudited  Pro Forma  Consolidated  Statement  of
Operations for the year ended December 31, 1999 gives effect to the  acquisition
of  Lightseek  by  VerticalBuyer  as if it also had  occurred as of December 31,
1999.

     The Pro Forma Financial  Information is not  necessarily  indicative of the
actual results of operations or financial position of the Company at and for the
year ended  December  31, 1999 and does not purport to represent  the  Company's
results of operations for future periods or its future financial position.

     The Pro Forma Financial  Information should be read in conjunction with the
Historical Financial Statements of Lightseek Limited and notes thereto which are
included elsewhere in this Prospectus.  In management's  opinion,  the Pro Forma
Financial  Information includes all adjustments necessary to reflect the effects
of  the  acquisition  of  Lightseek  by  VerticalBuyer  and  other  transactions
described below.


                                      F-12


<PAGE>
                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

Item 24.     Indemnification of Directors and Officers

     The Delaware General  Corporation Law provides for the  indemnification  of
the officers,  directors and  corporate  employees and agents of  VerticalBuyer,
Inc. (the "Registrant") under certain circumstances as follows:

INDEMNIFICATION OF OFFICERS, DIRECTORS, EMPLOYEES AND AGENTS; INSURANCE.

     (a) A  corporation  may  indemnify  any  person who was or is a party or is
threatened to be made a party to any  threatened,  pending or completed  action,
suit or proceeding,  whether civil,  criminal,  administrative  or investigative
(other  than an action by or in the right of the  corporation)  by reason of the
fact  that  he  is or  was  a  director,  officer,  employee  or  agent  of  the
corporation,  or is or was  serving  at the  request  of  the  corporation  as a
director, officer, employee or agent of another corporation,  partnership, joint
venture,  trust or other  enterprise,  against  expenses  (including  attorneys'
fees),  judgments,  fines and amounts paid in settlement actually and reasonably
incurred by him in connection  with such action,  suit or proceeding if he acted
in good faith and in a manner he reasonably  believed to be in or not opposed to
the best interests of the corporation,  and, with respect to any criminal action
or proceeding,  had no reasonable cause to believe his conduct was unlawful. The
termination of any action,  suit or proceeding by judgment,  order,  settlement,
conviction,  or upon a plea of nolo contendere or its equivalent,  shall not, of
itself,  create a presumption that the person did not act in good faith and in a
manner  which  he  reasonably  believed  to be in or not  opposed  to  the  best
interests  of the  corporation,  and,  with  respect to any  criminal  action or
proceeding, had reasonable cause to believe that his conduct was unlawful.

     (b) A  corporation  may  indemnify  any  person who was or is a party or is
threatened to be made a party to any threatened,  pending or completed action or
suit by or in the right of the corporation to procure a judgment in its favor by
reason of the fact that he is or was a director,  officer,  employee or agent of
the  corporation,  or is or was serving at the request of the  corporation  as a
director, officer, employee or agent of another corporation,  partnership, joint
venture,  trust or other enterprise against expenses (including attorneys' fees)
actually  and  reasonably  incurred  by him in  connection  with the  defense or
settlement  of such  action or suit if he acted in good faith and in a manner he
reasonably  believed  to be in or not  opposed  to  the  best  interests  of the
corporation and except that no  indemnification  shall be made in respect of any
claim,  issue or matter as to which such person  shall have been  adjudged to be
liable  to the  corporation  unless  and only to the  extent  that the  Court of
Chancery or the court in which such action or suit was brought  shall  determine
upon application that,  despite the adjudication of liability but in view of all
the  circumstance of the case, such person is fairly and reasonably  entitled to
indemnity for such expenses which the Court of Chancery or such court shall deem
proper.

     (c)  To the  extent  that a  director,  officer,  employee  or  agent  of a
corporation  has been  successful  on the merits or  otherwise in defense of any
action,  suit  or  proceeding  referred  to in  subsections  (a) and (b) of this
section,  or in  defense  of any  claim,  issue or matter  therein,  he shall be
indemnified against expenses (including attorney's fees) actually and reasonably
incurred by him in connection therewith.


<PAGE>
     (d) Any  indemnification  under  subsections  (a)  and (b) of this  section
(unless ordered by a court) shall be made by the corporation  only as authorized
in the specific case upon a determination that  indemnification of the director,
officer, employee or agent is proper in the circumstances because he has met the
applicable  standard  of conduct  set forth in  subsections  (a) and (b) of this
section.  Such  determination  shall be made (1) by the board of  directors by a
majority  vote of a quorum  consisting of directors who were not parties to such
action, suit or proceeding, or (2) if such a quorum is not obtainable,  or, even
if obtainable a quorum of  disinterested  directors so directs,  by  independent
legal counsel in a written opinion, or (3) by the stockholders.

     (e)  Expenses  incurred by an officer or director in  defending  any civil,
criminal, administrative or investigative action, suit or proceeding may be paid
by the corporation in advance of the final  disposition of such action,  suit or
proceeding  upon receipt of an  undertaking  by or on behalf of such director to
repay such amount if it shall  ultimately be determined  that he is not entitled
to be  indemnified  by the  corporation  as  authorized  in this  section.  Such
expenses including attorneys' fees incurred by other employees and agents may be
so paid upon such terms and conditions,  if any, as the board of directors deems
appropriate.

     (f) The  indemnification  and advancement  expenses provided by, or granted
pursuant to, the other subsections of this section shall not be deemed exclusive
of any other  rights  to which  those  seeking  indemnification  or  advancement
expenses may be entitled under any bylaw,  agreement,  vote of  stockholders  or
disinterested directors or otherwise, both as to action in his official capacity
and as to action in another capacity while holding such office.

     (g) A  corporation  shall have power to purchase and maintain  insurance on
behalf of any person who is or was a director, officer, employee or agent of the
corporation,  or is or was  serving  at the  request  of  the  corporation  as a
director, officer, employee or agent of another corporation,  partnership, joint
venture,  trust or other enterprise  against any liability  asserted against him
and  incurred by him in any such  capacity or arising out of his status as such,
whether or not the  corporation  would have the power to  indemnify  him against
such liability under this section.

     (h) For purposes of this  Section,  references to "the  corporation"  shall
include, in addition to the resulting corporation,  any constituent  corporation
(including  any  constituent of a constituent)  absorbed in a  consolidation  or
merger which, if its separate existence had continued,  would have had power and
authority to indemnify its  directors,  officers and employees or agents so that
any  person  who is or was a  director,  officer,  employee  or  agent  of  such
constituent corporation, or is or was serving at the request of such constituent
corporation as a director,  officer,  employee or agent of another  corporation,
partnership,  joint venture, trust or other enterprise,  shall stand in the same
position  under  this  section  with  respect  to  the  resulting  or  surviving
corporation as he would have with respect to such constituent  corporation as he
would  have  with  respect  to  such  constituent  corporation  if its  separate
existence had continued.

     (i) For purposes of this section,  references to "other  enterprises" shall
include employee  benefit plans;  references to "fines" shall include any excise
taxes  assessed  on a person  with  respect to an  employee  benefit  plan;  and
references  to  "serving at the request of the  corporation"  shall  include any
service as a  director,  officer,  employee  or agent of the  corporation  which
imposes duties on, or involves services by, such director, officer, employee, or
agent  with  respect  to  an  employee  benefit  plan,  its   participants,   or
beneficiaries;  and a  person  who  acted  in  good  faith  and in a  manner  he
reasonably  believed to be in the interest of the participants and beneficiaries
of an  employee  benefit  plan  shall be deemed to have  acted in a manner  "not
opposed  to the  best  interests  of the  corporation"  as  referred  to in this
section.

<PAGE>

     (j) The indemnification and advancement of expenses provided by, or granted
pursuant to, this section shall,  unless  otherwise  provided when authorized or
ratified,  continue  as to a person  who has ceased to be a  director,  officer,
employee or agent and shall inure to the  benefit of the heirs,  executors,  and
administrators of such person.

     Articles Ninth and Tenth of the  Registrant's  certificate of incorporation
provide as follows:

                                    NINTH:

     The  personal  liability  of the  directors  of the  Corporation  is hereby
eliminated to the fullest extent permitted by the provisions of paragraph (7) of
subsection (b) of Section 102 of the Delaware  General  Corporation  Law, as the
same may be amended and supplemented.

                                    TENTH:

     The Corporation shall, to the fullest extent permitted by the provisions of
Section 145 of the Delaware General  Corporation Law, as the same may be amended
and  supplemented,  indemnify  any and all  persons  whom it shall have power to
indemnify  under said  section  from and  against  any and all of the  expenses,
liabilities or other matters referred to in or covered by said section,  and the
indemnification  provided for herein shall not be deemed  exclusive of any other
rights to which those  indemnified may be entitled under any by-law,  agreement,
vote of stockholders or disinterested directors or otherwise,  both as to action
in his official capacity and as to action in another capacity while holding such
office,  and shall  continue  as to a person  who has  ceased to be a  director,
officer,  employee  or agent  and  shall  inure  to the  benefit  of the  heirs,
executors and administrators of such a person.

    Article XII of the Registrant's by-laws provides as follows:

ARTICLE XII - INDEMNIFICATION OF DIRECTORS AND OFFICERS

1.   INDEMNIFICATION. The corporation shall indemnify any person who was or is a
     party or is threatened to be made a party to any proceeding, whether civil,
     criminal,  administrative  or investigative  (other than an action by or in
     the right of the  corporation) by reason of the fact that such person is or
     was a director,  trustee, officer, employee or agent of the corporation, or
     is or was serving at the request of the corporation as a director, trustee,
     officer,  employee  or agent of  another  corporation,  partnership,  joint
     venture, trust or other enterprise,  against expenses (including attorneys'
     fees),  judgments,  fines  and  amounts  paid in  settlement  actually  and
     reasonably  incurred by such person in connection with such action, suit or
     proceeding  if such person  acted in good faith and in a manner such person
     reasonably  believed to be in or not opposed to the best  interests  of the
     corporation,  and with respect to any criminal action or proceeding, had no
     reasonable  cause to  believe  such  person's  conduct  was  unlawful.  The
     termination  of  any  action,  suit  or  proceeding  by  judgment,   order,
     settlement,   conviction,  or  upon  a  plea  of  nolo  contendere  or  its
     equivalent,  shall not, by itself, create a presumption that the person did
     not act in good faith and in a manner which the person reasonably  believed
     to be in or not opposed to the best interest of the  corporation,  and with
     respect to any  criminal  action or  proceeding,  had  reasonable  cause to
     believe that such person's conduct was lawful.


<PAGE>


2.   DERIVATIVE ACTION. The corporation shall indemnify any person who was or is
     a party or is threatened to be made a party to any  threatened,  pending or
     completed action or suit by or in the right of the corporation to procure a
     judgment in the corporation's  favor by reason of the fact that such person
     is  or  was  a  director,  trustee,  officer,  employee  or  agent  of  the
     corporation,  or is or was serving at the request of the  corporation  as a
     director,  trustee,  officer,  employee or agent of any other  corporation,
     partnership,  joint venture,  trust or other  enterprise,  against expenses
     (including  attorneys'  fees),   judgments,   fines  and  amounts  paid  in
     settlement  actually and  reasonably  incurred by such person in connection
     with such action, suit or proceeding if such person acted in good faith and
     in a manner such person reasonably  believed to be in or not opposed to the
     best   interests   of  the   corporation;   provided,   however,   that  no
     indemnification  shall be made in respect of any claim,  issue or matter as
     to which  such  person  shall  have been  adjudged  to be liable  for gross
     negligence or willful  misconduct in the  performance of such person's duty
     to the  corporation  unless and only to the extent  that the court in which
     such action or suit was brought  shall  determine  upon  application  that,
     despite  circumstances  of the case,  such person is fairly and  reasonably
     entitled to  indemnity  for such  expenses as such court shall deem proper.
     The  termination  of any action,  suit or  proceeding  by judgment,  order,
     settlement,   conviction,  or  upon  a  plea  of  nolo  contendere  or  its
     equivalent,  shall not, by itself, create a presumption that the person did
     not act in good faith and in a manner which the person reasonably  believed
     to be in or not opposed to the best interest of the corporation.

3.   SUCCESSFUL  DEFENSE.  To the  extent  that a  director,  trustee,  officer,
     employee or agent of the corporation has been successful,  on the merits or
     otherwise,  in  whole  or in  part,  in  defense  of any  action,  suit  or
     proceeding  referred to in  paragraphs 1 and 2 above,  or in defense of any
     claim,  issue or matter therein,  such person shall be indemnified  against
     expenses  (including  attorneys' fees) actually and reasonably  incurred by
     such person in connection therewith.

4.   AUTHORIZATION.  Any  indemnification  under paragraph 1 and 2 above (unless
     ordered by a court) shall be made by the corporation  only as authorized in
     the  specific  case  upon  a  determination  that  indemnification  of  the
     director,   trustee,   officer,   employee   or  agent  is  proper  in  the
     circumstances  because  such  person  has met the  applicable  standard  of
     conduct set forth in paragraph 1 and 2 above. Such  determination  shall be
     made  (a)  by the  board  of  directors  by a  majority  vote  of a  quorum
     consisting  of  directors  who were not  parties  to such  action,  suit or
     proceeding,  (b) by independent  legal counsel  (selected by one or more of
     the directors, whether or not a quorum and whether or not disinterested) in
     a  written  opinion,  or (c)  by the  stockholders.  Anyone  making  such a
     determination  under this  paragraph 4 may determine  that a person has met
     the  standards  therein set forth as to some claims,  issues or matters but
     not as to  others,  and  may  reasonably  prorate  amounts  to be  paid  as
     indemnification.

5.   ADVANCES.  Expenses incurred in defending civil or criminal actions,  suits
     or proceedings  shall be paid by the corporation,  at any time or from time
     to time in  advance  of the  final  disposition  of  such  action,  suit or
     proceeding as  authorized in the manner  provided in paragraph 4 above upon
     receipt  of an  undertaking  by or on  behalf  of  the  director,  trustee,
     officer,  employee or agent to repay such amount unless it shall ultimately
     be determined by the corporation that the payment of expenses is authorized
     in this Section.


<PAGE>

6.   NONEXCLUSIVITY.  The indemnification  provided in this Section shall not be
     deemed  exclusive  of any other  rights to which those  indemnified  may be
     entitled  under  any  law,  by-law,  agreement,  vote  of  stockholders  or
     disinterested  director or  otherwise,  both as to action in such  person's
     official  capacity and as to action in another  capacity while holding such
     office,  and shall continue as to a person who has ceased to be a director,
     trustee,  officer, employee or agent and shall insure to the benefit of the
     heirs, executors, and administrators of such a person.

7.   INSURANCE.  The  Corporation  shall have the power to purchase and maintain
     insurance  on  behalf  of any  person  who is or was a  director,  trustee,
     officer, employee or agent of the corporation,  or is or was serving at the
     request of the  corporation as a director,  trustee,  officer,  employee or
     agent  of any  corporation,  partnership,  joint  venture,  trust  or other
     enterprise,  against any liability assessed against such person in any such
     capacity or arising out of such person's status as such, whether or not the
     corporation  would have the power to  indemnify  such person  against  such
     liability.

8.   "CORPORATION"  DEFINED.  For  purpose  of this  action,  references  to the
     "corporation"   shall  include,   in  addition  to  the  corporation,   any
     constituent  corporation  (including  any  constituent  of  a  constituent)
     absorbed in a consolidation or merger which, if its separate  existence had
     continued,  would  have  had the  power  and  authority  to  indemnify  its
     directors,  trustees, officers, employees or agents, so that any person who
     is or was a  director,  trustee,  officer,  employee  or  agent  of such of
     constituent  corporation  will  be  considered  as  if  such  person  was a
     director, trustee, officer, employee or agent of the corporation.


Item 25.  Expenses of Issuance and Distribution

     The  other  expenses  payable  by the  Registrant  in  connection  with the
issuance and  distribution of the securities  being  registered are estimated as
follows:

    Securities and Exchange Commission Registration Fee     $   1,326.88
    Legal Fees                                                 20,000.00
    Accounting Fees                                            10,000.00
    Printing and Engraving                                      2,000.00
    Blue Sky Qualification Fees and Expenses                      950.00
    Transfer Agent Fee                                          5,000.00
    Miscellaneous                                               1,673.12
                                                            ------------
      TOTAL                                                 $  40,000.00

Item 26.  Recent Sales of Unregistered Securities

     The Registrant  purchased all the issued and  outstanding  capital stock of
Lightseek Limited from four  individuals,  including Tim Rosen,  President,  and
Leslie  Kent,  Secretary/Treasurer,  having a book value of $------- in exchange
for 14,250,000 shares of its common stock in February,  2000, and issued 750,000
shares of its common stock in exchange for consulting  services valued at $-----
 . In March, 2000, the Registrant issued 2,000,000 shares of its common stock and
3,000,000 common stock purchase  warrants for $2,000,000 to CSP Inc. and 225,000
warrants to certain  consultants.  The warrants  are  exercisable  at $1.00.  In
March,  2000, the Registrant also issued  1,300,000 bonus options to 10 persons,
including,  Tim Rosen,  President,  Leslie Kent,  Secretary/  Treasurer,  Joseph
Donahue, a Director and Alexander  Lupinetti,  a Director (each of whom received
250,000 bonus  options)  pursuant to its Year 2000 Option Plan.  The options are
exercisable at $1.00 for a period of three years.

     These securities were sold under the exemption from  registration  provided
by Section 4(2) of the  Securities  Act.  Neither the  Registrant nor any person
acting on its  behalf  offered  or sold the  securities  by means of any form of
general  solicitation  or general  advertising.  All  purchasers  represented in
writing that they acquired the securities  for their own accounts.  A legend was
placed on the  stock  certificates  stating  that the  securities  have not been
registered under the Securities Act and cannot be sold or otherwise  transferred
without an effective registration or an exemption therefrom.



<PAGE>



EXHIBITS


Item 27.

 3.1    Certificate of Incorporation

 3.2    Amendment to the Certificate of Incorporation

 3.3    By-Laws

 4.1    Specimen Certificate of Common Stock

 4.2    Form of "A" Warrant

 4.3    Form of "B" Warrant

 4.4    Form of "C" Warrant

 4.5    Form of "D" Warrant

 5.1    Opinion of Counsel

10.1    Securities Purchase and Facilities Agreement

10.2    Registration Rights Agreement

10.3    Voting Agreement

23.1    Accountant's Consent to Use Opinion

23.2    Counsel's Consent to Use Opinion

<PAGE>


Item 28.

UNDERTAKINGS

    The Registrant undertakes:

(1)  To file,  during  any  period in which  offers  or sales  are  being  made,
    post-effective  amendment to this registration  statement (the "Registration
    Statement"):

     (i)  To  include  any  prospectus  required  by  Section  10 (a) (3) of the
          Securities Act of 1933 (the "Securities Act");

     (ii) To reflect in the  prospectus  any facts or events  arising  after the
          Effective  Date of the  Registration  Statement  (or the  most  recent
          post-effective  amendment  thereof)  which,  individually  or  in  the
          aggregate, represent a fundamental change in the information set forth
          in the Registration Statement;

     (iii)To  include  any  material  information  with  respect  to the plan of
          distribution not previously disclosed in the Registration Statement or
          any  material  change  to  such   information  in  this   registration
          statement,   including  (but  not  limited  to)  the  addition  of  an
          underwriter;

(2)  That,  for the purpose of  determining  any liability  under the Securities
     Act,  each  such  post-effective  amendment  shall  be  treated  as  a  new
     registration  statement of the securities offered,  and the offering of the
     securities at that time to be the initial bona fide offering thereof.

(3)  To remove from  registration by means of a post-effective  amendment any of
     the securities  being  registered which remain unsold at the termination of
     the offering.

(4)  To deposit  into the Escrow  Account at the closing,  certificates  in such
     denominations  and  registered  in such names as required by the Company to
     permit prompt  delivery to each purchaser  upon release of such  securities
     from the Escrow  Account in accordance  with Rule 419 of Regulation C under
     the  Securities  Act.  Pursuant to Rule 419,  these  certificates  shall be
     deposited  into an escrow  account,  not to be  released  until a  business
     combination is consummated.

     Insofar as indemnification for liabilities arising under the Securities Act
may  be  permitted  to  directors,  officers  and  controlling  persons  of  the
Registrant   pursuant  to  any  provisions   contained  in  its  Certificate  of
Incorporation, or by-laws, or otherwise, the Registrant has been advised that in
the  opinion  of the SEC  such  indemnification  is  against  public  policy  as
expressed in the Securities Act and is, therefore,  unenforceable.  In the event
that a claim  for  indemnification  against  such  liabilities  (other  than the
payment by the Registrant of expenses incurred or paid by a director, officer or
controlling  person of the Registrant in the  successful  defense of any action,
suit or proceeding) is asserted by such director,  officer or controlling person
in connection with the securities being registered,  the Registrant will, unless
in the  opinion  of its  counsel  the matter  has been  settled  by  controlling
precedent,  submit to a court of appropriate  jurisdiction  the question whether
indemnification  by it is against  public policy as expressed in the  Securities
Act and will be governed by the final adjudication of such issue.

<PAGE>

                                  SIGNATURES


     In accordance  with the  requirements  of the  Securities  Act of 1933, the
Registrant certifies that it has reasonable grounds to believe that it meets all
of the  requirements  of  filing on Form SB-2 and  authorized  the  registration
statement  to be  signed  on its  behalf  by the  undersigned,  in the  City  of
New York, State of New York on March 28, 2000.



                                  VERTICALBUYER, INC.


                                  By: /s/Tim Rosen
                                     ---------------------------
                                     Tim Rosen, President and
                                        Chief Executive Officer

                                     /s/Leslie Kent
                                     ---------------------------
                                     Leslie Kent, Treasurer and
                                         Chief Financial Officer


     In accordance  with the  requirements  of the  Securities  Act of 1933, the
registration statement was signed by the following persons in the capacities and
on the dates stated.

/s/Tim Rosen
- -------------------------------                        Dated: March 28, 2000
Tim Rosen
President, Treasurer, Director

/s/Leslie Kent
- -------------------------------                        Dated: March 28, 2000
Leslie Kent
Secretary, Director

/s/Joseph Donahue
- -------------------------------                        Dated: March 28, 2000
Joseph Donahue
Director

/s/Alexander Lupinetti
- -------------------------------                        Dated: March 28, 2000
Alexander Lupinetti
Director

<PAGE>





                          CERTIFICATE OF INCORPORATION

                                       OF

                               VerticalBuyer, Inc.

     FIRST: The name of the corporation is VerticalBuyer, Inc.

     SECOND:  The registered  office of the corporation in the State of Delaware
is located at 800 Delaware Avenue, City of Wilmington, New Castle County, 19801.
The registered agent of the corporation at that address is Delaware Corporations
Inc.

     THIRD:  The  purpose of the  corporation  is to engage in any lawful act of
activity for which  corporations may be organized under the General  Corporation
Law of the State of Delaware.

     FOURTH:  The  total  number of shares  of stock  which the  corporation  is
authorized to issue is one thousand  (1,000) shares of common stock having a par
value of $0.01 per share.

     FIFTH:  The business and affairs of the corporation  shall be managed by or
under the  director  o the board of  directors,  and the  directors  need not be
elected by ballot unless required by the bylaws of the corporation.

     SIXTH: In furtherance and not in limitation of the powers  conferred by the
laws of the State of Delaware, the board of directors is expressly authorized to
make, amend and repeal the bylaws.

     SEVENTH:  The  corporation  reserves  the  right  to amend  or  repeal  any
provision   contained  in  this  Certificate  of  Incorporation  in  the  manner
prescribed by the laws of the State of Delaware. All rights herein conferred are
granted subject to this reservation.

     EIGHTH:  The  incorporator  is Delaware  Corporations  Inc.  whose  mailing
address is 800 Delaware Ave., P.O. Box 8702, Wilmington, DE 19899.

    THE UNDERSIGNED,  being the sole incorporator, for the purpose of forming a
corporation under the laws of the State of Delaware,  does make, file and record
this Certificate of Incorporation, does certify that the facts herein stated are
true, and has caused this Certificate of Incorporation to be duly executed by an
authorized officer this 24th day of September, 199.


                                      DELAWARE CORPORATIONS INC.
                                      Sole Incorporator

                                      By: /s/Robin G. Brooks
                                          Robin G. Brooks, Vice President






                            CERTIFICATE OF AMENDMENT

                                       TO

                          CERTIFICATE OF INCORPORATION

                                       OF

                               VerticalBuyer, Inc.

     VerticalBuyer, Inc., a corporation organized and existing under the General
Corporation Law of the State of Delaware (the "Company"),  hereby certifies that
the  Company  has not  received  any  payment  for any of its stock and that the
amendments set forth below to the Company's  Certificate of  Incorporation  were
duly adopted in accordance  with the provisions of Section 241(b) of the General
Corporation  Law of  the  State  of  Delaware  and  that  the  capital  of  said
corporation shall not be reduced under or by reason of said amendments:

     Article  FOURTH of the  Certificate of  Incorporation  is hereby amended to
read in its entirety as follows:

     This  corporation  shall  have the  authority  to issue two (2)  classes of
     capital  stock  the  total  of  which  shall  be  55,000,000   shares.  The
     classification  and par value of  50,000,000  shares shall be common voting
     stock  having a par  value of $.001  per  share,  and each  share  shall be
     entitled  to  the  same  dividend,  liquidation,  and  voting  rights;  the
     classification  and par value of 5,000,000  shares shall be preferred stock
     having a par value of $.001 per share.  Said preferred  stock may be issued
     from  time to time in one or more  classes  or series  with  such  dividend
     rates,  voting  rights,  rights of conversion,  rights upon  dissolution or
     liquidation, and with such designations or restrictions thereof as shall be
     determined by resolution adopted by the Board of Directors at the time such
     stock is issued without further approval of the shareholders."

     Article FIFTH of the Certificate of Incorporation is hereby amended to read
in its entirety as follows:

     For the  management  of the  business and for the conduct of the affairs of
the  Corporation,  and in further  definition,  limitation and regulation of the
powers of the  Corporation  and of its directors and of its  stockholders or any
class thereof, as the case may be, it is further provided:

1.   The  management  of the  business  and the  conduct  of the  affairs of the
     Corporation  shall be  vested  in its  board of  directors.  The  number of
     directors  which shall  constitute  the whole board of  directors  shall be
     fixed by, or in the  manner  provided  in, the by-laws.  The phrase  "whole
     board" and the phrase "total  number of directors"  shall be deemed to have
     the  same  meanings  to wit,  the  total  number  of  directors  which  the
     Corporation would have if there were no vacancies. No election of directors
     need be by written ballot.

<PAGE>

2.   After the original or other by-laws of the  Corporation  have been adopted,
     amended, or repealed, as the case may be, in accordance with the provisions
     of Section  109 of the  Delaware  General  Corporation  Law,  and after the
     Corporation  has  received  any payment for any of its stock,  the power to
     adopt,  amend, or repeal the by-laws of the Corporation may be exercised by
     the board of directors of the Corporation  subject to the reserved power of
     the stockholders to make, alter and repeal any by-laws adopted by the board
     of directors;  provided, however, that any provision for the classification
     of  directors  of the  Corporation  for  staggered  terms  pursuant  to the
     provisions  of  subsection  (d) of  Section  141 of  the  Delaware  General
     Corporation  Law  shall be set  forth in an  initial  by-law or in a by-law
     adopted by the stockholders of the Corporation entitled to vote.

3.   Whenever the  Corporation  shall be  authorized  to issue only one class of
     stock,  each  outstanding  share shall entitle the holder thereof to notice
     of, and the right to vote at, any  meeting of  stockholders.  Whenever  the
     Corporation  shall be authorized to issue more than one class of stock,  no
     outstanding  share of any class of stock which is denied voting power under
     the  provisions  of this  certificate  of  incorporation  shall entitle the
     holder thereof to the right to vote at any meeting of  stockholders  except
     as the  provisions of paragraph (2) of subsection (b) to Section 242 of the
     Delaware General Corporation Law shall otherwise require; provided, that no
     share of any such  class  which is  otherwise  denied  voting  power  shall
     entitle  the holder  thereof to vote upon the  increase  or decrease in the
     number of authorized shares of said class.

4.   With the  consent  in  writing or  pursuant  to a vote of the  holders of a
     majority  of the  capital  stock  issued  and  outstanding,  the  board  of
     directors shall have the authority to dispose,  in any manner, of the whole
     property of the Corporation.  5. The by-laws shall determine whether and to
     what  extent the  accounts  and books of the  Corporation,  or any of them,
     shall be open to inspection by the  stockholders;  and no stockholder shall
     have  any  right  or  inspect  any  account  or  book  or  document  of the
     Corporation,  except as conferred by law or by by-laws or by  resolution of
     the stockholders.

6.   The  stockholders  and directors shall have the power to hold their meeting
     and to keep the books,  documents and papers of the Corporation outside the
     State of Delaware at such places as may be from time to time  designated by
     the by-laws or by resolution of the  stockholders  or directors,  except as
     otherwise required by the Delaware General Corporation Law.

7.   Any  action  required  to be taken or which  may be taken at any  annual or
     special  meeting of  stockholders of the Corporation may be taken without a
     meeting,  without prior notice and without a vote, if a consent or consents
     in  writing,  setting  forth the  action  so taken,  shall be signed by the
     holders of  outstanding  stock  having not less than the minimum  number of
     votes that would be necessary to authorize or take such action at a meeting
     at which all shares entitled to vote thereon were present and voted."

     A new Article NINTH to the Certificate of  Incorporation  is hereby adopted
to read as follows:

     "Whenever a compromise or arrangement is proposed  between the  Corporation
     and its creditors or any class of them and/or between the  Corporation  and
     its stockholders or any class of them, any court of equitable  jurisdiction
     within the State of Delaware  may, on the  application  in a summary way of
     the  Corporation  or of  any  creditor  or  stockholder  thereof  or on the
     application  of any receiver or  receivers  appointed  for the  Corporation
     under the provisions of Section 291 of Delaware General  Corporation Law or
     on the  application  of  trustees  in  dissolution  or of any  receiver  or
     receivers appointed for the Corporation under the provisions of Section 279
     of Delaware General Corporation Law order a meeting of the

                                       2
<PAGE>

     creditors or class of  creditors,  and/or of the  stockholders  or class of
     stockholders of the Corporation, as the case may be, to be summoned in such
     manner as the said  court  directs.  If a majority  in number  representing
     three-fourths  in value of the creditors or class of  creditors,  and/or of
     the stockholders or class of stockholders of the  Corporation,  as the case
     may be,  agree to any  compromise  or  arrangement  of the  Corporation  as
     consequence  and to any  reorganization  of such compromise or arrangement,
     the said  compromise or arrangement and the said  reorganization  shall, if
     sanctioned  by the court to which the said  application  has been made,  be
     binding  on all the  creditors  or class of  creditors,  and/or  on all the
     stockholders or class of stockholders,  of the Corporation, as the case may
     be, and also on the Corporation."

     A new Article TENTH to the Certificate of  Incorporation  is hereby adopted
to read as follows:

    "The  personal  liability  of the  directors of the  Corporation  is hereby
     eliminated to the fullest  extent  permitted by the provisions of paragraph
     (7) of subsection  (b) of Section 102 of the Delaware  General  Corporation
     Law, as the same may be amended and supplemented."

     A new  Article  ELEVENTH  to the  Certificate  of  Incorporation  is hereby
adopted to read as follows:

     "The  Corporation  shall, to the fullest extent permitted by the provisions
     of Section 145 of the Delaware General  Corporation Law, as the same may be
     amended and supplemented,  indemnify any and all persons whom it shall have
     power to  indemnify  under said section from and against any and all of the
     expenses,  liabilities  or other matters  referred to in or covered by said
     section,  and the  indemnification  provided for herein shall not be deemed
     exclusive  of any other rights to which those  indemnified  may be entitled
     under  any  by-law,   agreement,  vote  of  stockholders  or  disinterested
     directors or otherwise,  both as to action in his official  capacity and as
     to action In another capacity while holding such office, and shall continue
     as to a person who has ceased to be a director,  officer, employee or agent
     and shall inure to the benefit of the heirs,  executors and  administrators
     of such a person. The foregoing right of indemnification shall in no way be
     exclusive of any other rights of  indemnification  to which such person may
     be  entitled  under  any  by-law,   agreement,   vote  of  stockholders  or
     disinterested directors, or otherwise."

     A new Article TWELFTH to the Certificate of Incorporation is hereby adopted
to read as follows:

     "The  Corporation  elects not to be governed by Section 203 of the Delaware
     General Corporation Law."


     IN WITNESS WHEREOF, the Company has caused this Certificate of Amendment to
be  executed  by its sole  incorporator  thereunto  duly  authorized  as of this
28th day of February, 2000.

                                         DELAWARE CORPORATIONS LLC



                                         By:  /s/Robin G. Brooks
                                               -------------------------------
                                               Robin G. Brooks, Vice President

                                       3

<PAGE>




                               VERTICALBUYER, INC.

                            A Delaware Corporation

                                    BY-LAWS


                                   ARTICLE I

                          Principal Executive Office

     The principal  executive office of VerticalBuyer,  Inc. (the "Corporation")
shall be at 40 Linnell Circle,  Billerica,  Massachusetts 01821. The Corporation
may also have  offices  at such  other  places  within or  without  the State of
Delaware as the board of directors shall from time to time determine.

                                  ARTICLE II

                                 Stockholders

     SECTION  1. Place of  Meetings.  All annual  and  special  meetings  of the
stockholders  shall be held at the principal  executive  office or at such other
place  within or without  the State of Delaware  as the board of  directors  may
determine and as designated in the notice of such meeting.

     SECTION 2. Annual Meeting.  A meeting of the  stockholders for the election
of  directors  and for the  transaction  of any  other  business  shall  be held
annually at such date and time as the board of directors may determine.

     SECTION 3. Special  Meetings.  Special meeting of the  stockholders for any
purpose or purposes may be called at any time by the board of directors, or by a
committee of the board of directors  which as been duly  designated by the board
of directors  and whose powers and  authorities,  as provided in a resolution of
the board of directors or in these  by-laws,  include the power and authority to
call such meetings, or by stockholders owning at least twenty-five percent (25%)
of the entire voting power of the  corporation's  capital stock but such special
meetings may not be called by any other person or persons.

     SECTION  4.  Conduct of  Meetings.  Annual and  special  meetings  shall be
conducted in  accordance  with these  by-laws or as otherwise  prescribed by the
board of directors. The chairman or the chief executive officer shall preside at
such meetings.

     SECTION 5. Notice of Meeting.  Written  notice  stating the place,  day and
time of the meeting and the purpose or purposes  for which the meeting is called
shall be mailed by the secretary or the officer  performing his duties, not less
than ten days nor more than fifty days before the meeting to each stockholder of
record entitled to vote at such meeting.  If mailed, such notice shall be deemed
to be  delivered  when  deposited in the United  States  mail,  addressed to the
stockholder  at his address as it appears on the stock transfer books or records
as of the record date prescribed in Section 6, with postage thereon prepaid.  If
a stockholder be present at a meeting, or in writing waive notice thereof before
or after  the  meeting,  notice  of the  meeting  to such  stockholder  shall be
unnecessary.  When any  stockholders'  meeting,  either  annual or  special,  is
adjourned  for thirty days or more,  notice of the  adjourned  meeting  shall be
given as in the case of an original  meeting.  It shall not be necessary to give
any notice of the time and place of any meeting  adjourned  for less than thirty
days or of the business to be transacted at such adjourned  meeting,  other than
an announcement at the meeting at which such adjournment is taken.

<PAGE>


     SECTION  6.  Fixing  of  Record  Date.   For  the  purpose  of  determining
stockholders  entitled to notice of or to vote at any stockholders'  meeting, or
any  adjournment  thereof,  or  stockholders  entitled to receive payment of any
dividend,  or in order to make a  determination  of  stockholders  for any other
proper purpose, the board of directors shall fix in advance a date as the record
date for any such determination of stockholders.  Such date in any case shall be
not more than sixty days, and in case of a stockholders'  meeting, not less than
ten days  prior  to the date on which  the  particular  action,  requiring  such
determination of stockholders, is to be taken.

     When a determination of stockholders  entitled to vote at any stockholders'
meeting has been made as  provided in this  section,  such  determination  shall
apply to any adjournment thereof.

     SECTION 7. Voting  Lists.  The officer or agent having  charge of the stock
transfer   books  for  shares  shall  make,   at  least  ten  days  before  each
stockholders' meeting, a complete record of the stockholders entitled to vote at
such meeting or any adjournment  thereof,  with the address of and the number of
shares held by each.  The record,  for a period of ten days before such meeting,
shall be kept on file at the  principal  executive  office,  whether  within  or
outside  the  State of Delaware,  and  shall be  subject  to  inspection  by any
stockholder  for any purpose  germane to the  meeting at any time  during  usual
business hours. Such record shall also be produced and kept open at the time and
place of the meeting and shall be subject to the  inspection of any  stockholder
for any purpose germane to the meeting during the whole time of the meeting. The
original  stock  transfer  books  shall  be  prima  facie  evidence  as  to  the
stockholders entitled to examine such record or transfer books or to vote at any
stockholders' meeting.

     SECTION 8. Quorum.  One-fourth of the outstanding  shares entitled to vote,
represented in person or by proxy,  shall constitute a quorum at a stockholders'
meeting.  If less than one-fourth of the outstanding shares are represented at a
meeting,  a majority of the shares so  represented  may adjourn the meeting from
time to time without further notice. At such adjourned meeting at which a quorum
shall be present or represented, any business may be transacted which might have
been transacted at the meeting as originally notified.  The stockholders present
at a duly organized meeting may continue to transact business until adjournment,
notwithstanding  the  withdrawal  of enough  stockholders  to leave  less than a
quorum.

     SECTION 9. Proxies. At all stockholders'  meetings,  a stockholder may vote
by proxy  executed  in writing  by such  stockholder  or by his duly  authorized
attorney in fact.  Proxies  solicited on behalf of the management shall be voted
as  directed  by such  stockholder  or, in the  absence  of such  direction,  as
determined  by a majority  of the board of  directors.  No proxy  shall be valid
after eleven months from the date of its execution unless otherwise  provided in
the proxy.

     SECTION 10.  Voting.  At each  election  for  directors  every  stockholder
entitled to vote at such  election  shall be entitled to one vote for each share
of stock held. Unless otherwise provided by the certificate of incorporation, by
statute,  or by these  by-laws,  a majority  of votes of the  shares  present in
person or by proxy at a lawful  meeting and  entitled to vote on the election of
directors shall be sufficient to pass on a transaction or matter,  except in the
election of directors,  which election shall be determined by a plurality of the
votes of the shares present in person or by proxy at the meeting and entitled to
vote on the election of directors.


                                       2
<PAGE>


     SECTION  11.  Voting  of Shares  in the Name of Two or More  Persons.  When
ownership of stock stands in the name of two or more persons,  in the absence of
written  directions to the  Corporation  to the contrary,  at any  stockholders'
meeting any one or more of such  stockholders  may cast,  in person or by proxy,
all votes to which such  ownership is entitled.  In the event an attempt is made
to cast  conflicting  votes,  in person or by proxy,  by the several  persons in
whose name shares of stock stand,  the vote or votes to which these  persons are
entitled shall be cast as directed by a majority of those holding such stock and
present in person or by proxy at such  meeting,  but no votes  shall be cast for
such stock without the direction of such a majority.

     SECTION 12.  Voting of Shares by Certain  Holders.  Shares of capital stock
standing in the name of another  corporation may be voted by any officer,  agent
or proxy as these by-laws of such corporation may prescribe,  or, in the absence
of such provision,  as the board of directors of such corporation may determine.
Shares held by an administrator,  executor, guardian or conservator may be voted
by him, either in person or by proxy, without a transfer of such shares into his
name.  Shares  standing in the name of a trustee may be voted by him,  either in
person or by proxy,  but no trustee shall be entitled to vote shares held by him
without a transfer of such shares into his name.  Shares standing in the name of
a  receiver  may be voted by such  receiver,  and  shares  held by or under  the
control of a receiver may be voted by such receiver without the transfer thereof
into his name if authority to do so is contained in an appropriate  order of the
court or other public authority by which such receiver was appointed.

     A  stockholder  whose  shares are  pledged  shall be  entitled to vote such
shares at any stockholders' meeting until such shares have been transferred into
the name of the pledgee and  thereafter  such pledgee  shall be entitled to vote
the shares so transferred.

     Neither  treasury  shares of its own  stock  held by the  Corporation,  nor
shares held by another corporation, if a majority of the shares entitled to vote
for  the  election  of  directors  of such  other  corporation  are  held by the
Corporation,  shall  be  voted  at  any  stockholders'  meeting  or  counted  in
determining  the total  number  of  outstanding  shares  at any  given  time for
purposes of any meeting.

     SECTION  13.  Inspectors  of  Election.  In  advance  of any  stockholders'
meeting,  the  chairman of the board or the board of  directors  may appoint any
persons,  other than  nominees for office,  as  inspectors of election to act at
such  meeting or any  adjournment  thereof.  The number of  inspectors  shall be
either  one or three.  If the board of  directors  appoints  either one or three
inspectors,  that appointment shall not be altered at the meeting. If inspectors
of election are not so  appointed,  the  chairman of the board of directors  may
make an  appointment at the meeting.  In case any person  appointed as inspector
fails to  appear  or fails or  refuses  to act,  the  vacancy  may be  filled by
appointment  in advance of the meeting or at the meeting by the  chairman of the
board of directors or the president of the Corporation.

     Unless  otherwise   prescribed  by  applicable  law,  the  duties  of  such
inspectors  shall  include:  determining  the  number of shares of stock and the
voting power of each share, the shares of stock represented at the meeting,  the
existence  of a quorum,  the  authenticity,  validity  and  effect  of  proxies;
receiving votes, ballots or consents; hearing and determining all challenges and
questions in any way arising in connection with the right to vote;  counting and
tabulating all votes or consents;  determining the result;  and such acts as may
be proper to conduct the election or vote with fairness to all stockholders.


                                       3
<PAGE>


     SECTION 14.  Nominating  Committee.  The board of  directors or a committee
appointed  by the board of  directors  shall  act as  nominating  committee  for
selecting the management nominees for election as directors.  Except in the case
of a  nominee  substituted  as a result of the  death or other  incapacity  of a
management nominee,  the nominating  committee shall deliver written nominations
to the  secretary at least twenty days prior to the date of the annual  meeting.
Provided such committee  makes such  nominations,  no nominations  for directors
except those made by the nominating  committee shall be voted upon at the annual
meeting  unless  other  nominations  by  stockholders  are made in  writing  and
delivered  to  the   secretary  in  accordance   with  the   provisions  of  the
Corporation's certificate of incorporation.

     SECTION  15. New  Business.  Any new  business to be taken up at the annual
meeting  shall be stated in writing and filed with the  secretary in  accordance
with the  provisions of the  Corporation's  certificate of  incorporation.  This
provision shall not prevent the consideration and approval or disapproval at the
annual  meeting  of  reports  of  officers,  directors  and  committees,  but in
connection  with such reports no new business shall be acted upon at such annual
meeting unless stated and filed as provided in the Corporation's  certificate of
incorporation.

                                  ARTICLE III

                              Board of Directors

     SECTION 1. General  Powers.  The  business  and affairs of the  Corporation
shall be under the  direction  of the board of  directors.  The  chairman  shall
preside at all meetings of the board of directors.

     SECTION 2. Number, Term and Election. The number of directors shall be such
number,  not less than one nor more than seven (exclusive of directors,  if any,
to be elected by holders of preferred  stock), as shall be provided from time to
time in a  resolution  adopted  by the  board  of  directors,  provided  that no
decrease in the number of directors shall have the effect of shortening the term
of any incumbent director, and provided further that no action shall be taken to
decrease or increase the number of  directors  from time to time unless at least
two-thirds  of the  directors  then in  office  shall  concur  in  said  action.
Exclusive of directors, if any, elected by holders of preferred stock, vacancies
in the board of directors, however caused, and newly created directorships shall
be filled by a vote of two-thirds of the  directors  then in office,  whether or
not a quorum,  and any director so chosen shall hold office for a term  expiring
at the annual stockholders'  meeting at which the term of the class to which the
director has been chosen  expires and when the  director's  successor is elected
and qualified. The board of directors shall be classified in accordance with the
provisions of Section 3 of this Article III.

     SECTION 3. Regular  Meetings.  A regular  meeting of the board of directors
shall be held at such time and place as shall be determined by resolution of the
board of directors without other notice than such resolution.

     SECTION 4. Special Meetings. Special meetings of the board of directors may
be called by or at the request of the chairman,  the chief executive  officer or
one-third of the directors. The person calling the special meetings of the board
of directors  may fix any place as the place for holding any special  meeting of
the board of directors called by such persons.


                                       4
<PAGE>


     Members of the board of the directors may  participate in special  meetings
by means of telephone  conference or similar  communications  equipment by which
all persons participating in the meeting can hear each other. Such participation
shall constitute presence in person.



     SECTION 5. Notice.  Written notice of any special meeting shall be given to
each  director at least two days  previous  thereto  delivered  personally or by
telegram  or at least  seven  days  previous  thereto  delivered  by mail at the
address at which the director is most likely to be reached. Such notice shall be
deemed to be delivered  when  deposited in the United  States mail so addressed,
with  postage  thereon  prepaid  if mailed or when  delivered  to the  telegraph
company if sent by  telegram.  Any director may waive notice of any meeting by a
writing  filed with the  secretary.  The  attendance  of a director at a meeting
shall  constitute  a waiver of notice of such  meeting,  except where a director
attends a meeting for the express purpose of objecting to the transaction of any
business  because the meeting is not lawfully  called or  convened.  Neither the
business  to be  transacted  at, nor the purpose of, any meeting of the board of
directors need be specified in the notice or waiver of notice of such meeting.

     SECTION 6. Quorum. A majority of the number of directors fixed by Section 2
shall  constitute a quorum for the transaction of business at any meeting of the
board of directors,  but if less than such  majority is present at a meeting,  a
majority of the  directors  present  may adjourn the meeting  from time to time.
Notice of any adjourned  meeting shall be given in the same manner as prescribed
by Section 5 of this Article III.

     SECTION  7.  Manner of Acting.  The act of the  majority  of the  directors
present at a meeting at which a quorum is present  shall be the act of the board
of  directors,  unless a greater  number is  prescribed  by these  by-laws,  the
certificate of  incorporation,  or the General  Corporation  Law of the State of
Delaware.

     SECTION 8. Action Without a Meeting. Any action required or permitted to be
taken by the board of directors at a meeting may be taken without a meeting if a
consent in writing, setting forth the action so taken, shall be signed by all of
the directors.

     SECTION 9.  Resignation.  Any  director may resign at any time by sending a
written notice of such resignation to the home office addressed to the chairman.
Unless  otherwise  specified  therein  such  resignation  shall take effect upon
receipt thereof by the chairman.

     SECTION 10.  Vacancies.  Any vacancy  occurring  on the board of  directors
shall  be  filled  in  accordance  with  the  provisions  of  the  Corporation's
certificate  of  incorporation.  Any  directorship  to be filled by reason of an
increase in the number of  directors  may be filled by the  affirmative  vote of
two-thirds of the directors  then in office or by election at an annual  meeting
or at a special meeting of the stockholders  held for that purpose.  The term of
such director shall be in accordance  with the  provisions of the  Corporation's
certificate of incorporation.

     SECTION 11.  Removal of  Directors.  Any  director  or the entire  board of
directors  may  be  removed  only  in  accordance  with  the  provisions  of the
Corporation's certificate of incorporation.

                                       5
<PAGE>

     SECTION 12. Compensation.  Directors, as such, may receive compensation for
service  on the board of  directors.  Members  of  either  standing  or  special
committees  may be  allowed  such  compensation  as the board of  directors  may
determine.

     SECTION  13.  Age  Limitation.  No  person 72 years or more of age shall be
eligible for election, reelection, appointment or reappointment to the board. No
director shall serve as such beyond the annual meeting immediately following the
director  becoming  72 years of age.  This age  limitation  does not apply to an
advisory director.

                                  ARTICLE IV

                     Committees of the Board of Directors

     The board of directors may, by resolution passed by a majority of the whole
board,  designate one or more committees,  as they may determine to be necessary
or  appropriate  for the conduct of the business,  and may prescribe the duties,
constitution and procedures thereof. Each committee shall consist of one or more
directors  appointed by the  chairman.  The chairman may  designate  one or more
directors as alternate  members of any committee,  who may replace any absent or
disqualified member at any meeting of the committee.

     The chairman shall have power at any time to change the members of, to fill
vacancies  in, and to discharge  any  committee of the board.  Any member of any
such  committee  may  resign  at any time by giving  notice to the  Corporation;
provided,  however,  that notice to the board,  the  chairman of the board,  the
chief executive officer, the chairman of such committee,  or the secretary shall
be deemed to constitute  notice to the Corporation.  Such resignation shall take
effect upon receipt of such notice or at any later time specified therein;  and,
unless otherwise specified therein,  acceptance of such resignation shall not be
necessary to make it effective.  Any member of any such committee may be removed
at any time, either with or without cause, by the affirmative vote of a majority
of the  authorized  number of  directors  at any meeting of the board called for
that purpose.

                                   ARTICLE V

                                   Officers

     SECTION 1. Positions. The officers shall be a chairman, a president, one or
more vice presidents, a secretary and a treasurer, each of whom shall be elected
by the board of directors. The board of directors may designate one or more vice
presidents as executive  vice president or senior vice  president.  The board of
directors may also elect or authorize the  appointment of such other officers as
the business may require.  The officers  shall have such  authority  and perform
such  duties  as the  board of  directors  may from  time to time  authorize  or
determine.  In the  absence of action by the board of  directors,  the  officers
shall  have such  powers  and duties as  generally  pertain to their  respective
offices.

                                       6
<PAGE>

     SECTION 2.  Election  and Term of  Office.  The  officers  shall be elected
annually  by the  board  of  directors  at the  first  meeting  of the  board of
directors held after each annual meeting of the stockholders. If the election of
officers  is not  held at such  meeting,  such  election  shall  be held as soon
thereafter as possible. Each officer shall hold office until his successor shall
have been duly elected and  qualified,  until his death or until he shall resign
or shall have been  removed  in the manner  hereinafter  provided.  Election  or
appointment of an officer, employee or agent shall not of itself create contract
rights.  The board of directors may authorize the  Corporation  to enter into an
employment  contract with any officer in accordance  with state law; but no such
contract  shall impair the right of the board of directors to remove any officer
at any time in accordance with Section 3 of this Article V.

     SECTION 3. Removal. Any officer may be removed by vote of two-thirds of the
board of directors whenever, in its judgment,  the best interests will be served
thereby,  but such removal,  other than for cause, shall be without prejudice to
the contract rights, if any, of the person so removed.

     SECTION  4.   Vacancies.   A  vacancy  in  any  office  because  of  death,
resignation,  removal, disqualification or otherwise, may be filled by the board
of directors for the unexpired portion of the term.

     SECTION 5.  Remuneration.  The  remuneration of the officers shall be fixed
from time to time by the board of  directors,  and no officer shall be prevented
from receiving such salary by reason of the fact that he is also a director.

                                  ARTICLE VI

                     Contracts, Loans, Checks and Deposits

     SECTION 1. Contracts. To the extent permitted by applicable law, and except
as otherwise  prescribed by the  Corporation's  certificate of  incorporation or
these by-laws with respect to certificates for shares, the board of directors or
the executive committee may authorize any officer,  employee,  or agent to enter
into any  contract or execute and deliver any  instrument  in the name of and on
behalf. Such authority may be general or confined to specific instances.

     SECTION 2. Loans. No loans shall be contracted on behalf and no evidence of
indebtedness  shall be  issued  in its name  unless  authorized  by the board of
directors. Such authority may be general or confined to specific instances.

     SECTION 3. Checks,  Drafts, Etc. All checks, drafts or other orders for the
payment of money,  notes or other evidences of  indebtedness  issued in the name
shall be signed by one or more  officers,  employees  or agents in such  manner,
including  in  facsimile  form,  as shall  from  time to time be  determined  by
resolution of the board of directors.

     SECTION 4.  Deposits.  All funds not otherwise  employed shall be deposited
from time to time to the credit in any of its duly  authorized  depositories  as
the board of directors may select.

                                       7
<PAGE>

                                  ARTICLE VII

                  Certificates for Shares and Their Transfer

     SECTION 1.  Certificates  for Shares.  The shares of capital stock shall be
represented by certificates  signed by the chairman of the board of directors or
the president or a vice president and by the treasurer or an assistant treasurer
or the secretary or an assistant secretary, and may be sealed with the seal or a
facsimile  thereof.  Any  or all of the  signatures  upon a  certificate  may be
facsimiles  if  the  certificate  is  countersigned  by  a  transfer  agent,  or
registered by a registrar,  other than the Corporation itself or an employee. If
any officer  who has signed or whose  facsimile  signature  has been placed upon
such certificate  shall have ceased to be such officer before the certificate is
issued,  it may be issued by the Corporation  with the same effect as if he were
such officer at the date of its issue.

     SECTION 2. Form of Share Certificates. All certificates representing shares
of capital stock shall set forth upon the face or back that the Corporation will
furnish to any  stockholder  upon request and without charge a full statement of
the designations, preferences, limitations, and relative rights of the shares of
each class  authorized to be issued,  the variations in the relative  rights and
preferences  between the shares of each such series so far as the same have been
fixed and  determined,  and the  authority  of the board of directors to fix and
determine the relative rights and preferences of subsequent series.

     Each  certificate  representing  shares shall state upon the face  thereof:
that the Corporation is organized  under the laws of the State of Delaware;  the
name of the  person  to whom  issued;  the  number  and  class  of  shares,  the
designation of the series,  if any, which such certificate  represents;  the par
value of each share  represented  by such  certificate,  or a statement that the
shares  are  without  par  value.  Other  matters  in  regard to the form of the
certificates shall be determined by the board of directors.

     SECTION 3. Payment for Shares. No certificate shall be issued for any share
of capital stock until such share is fully paid.

     SECTION 4. Form of Payment for Shares.  The  consideration for the issuance
of shares of capital  stock shall be paid in accordance  with the  provisions of
the certificate of incorporation.



     SECTION 5. Transfer of Shares. Transfer of shares of capital stock shall be
made only on the stock  transfer  books of the  Corporation.  Authority for such
transfer  shall be given  only to the  holder of record  thereof or by his legal
representative,  who shall furnish proper evidence of such authority,  or by his
attorney thereunto  authorized by power of attorney duly executed and filed with
the Corporation.  Such transfer shall be made only on surrender for cancellation
of the certificate  for such shares.  The person in whose name shares of capital
stock  stand on the books  shall be deemed  by the  Corporation  to be the owner
thereof for all purposes.

     SECTION  6. Lost  Certificates.  The board of  directors  may  direct a new
certificate to be issued in place of any certificate  theretofore  issued by the
Corporation alleged to have been lost, stolen, or destroyed,  upon the making of
an affidavit of that fact by the person  claiming the certificate of stock to be
lost,  stolen,  or destroyed.  When authorizing such issue of a new certificate,
the board of directors may, in its  discretion  and as a condition  precedent to
the  issuance  thereof,  require the owner of such lost,  stolen,  or  destroyed
certificate, or his legal representative, to give the Corporation a bond in such
sum as it may direct as indemnity against any claim that may be made against the
Corporation with respect to the certificate  alleged to have been lost,  stolen,
or destroyed.

                                       8
<PAGE>

                                 ARTICLE VIII

                           Fiscal Year; Annual Audit

     The fiscal  year shall end on the last day of  December  of each year.  The
Corporation shall be subject to an annual audit as of the end of its fiscal year
by independent public  accountants  appointed by and responsible to the board of
directors.

                                  ARTICLE IX

                                   Dividends

     Dividends  upon  the  capital  stock,  subject  to  the  provisions  of the
certificate of incorporation,  if any, may be declared by the board of directors
at any regular or special directors' meeting,  pursuant to law. Dividends may be
paid in cash, in property or in stock.

                                   ARTICLE X

                               Corporation Seal

     The  corporate  seal shall be in such form as the board of directors  shall
prescribe.

                                  ARTICLE XI

                                  Amendments

     Pursuant  to  the  certificate  of  incorporation,  these  by-laws  may  be
repealed,  altered, amended or rescinded by the stockholders only by vote of not
less  than  three-quarters  of the  voting  power of the  outstanding  shares of
capital  stock   entitled  to  vote  generally  in  the  election  of  directors
(considered  for this  purpose as one  class)  cast at a  stockholders'  meeting
called  for  that  purpose  (provided  that  notice  of  such  proposed  repeal,
alteration,  amendment or rescission is included in the notice of such meeting).
In addition,  the board of directors may repeal,  alter,  amend or rescind these
by-laws by vote of  two-thirds of the board of directors at a legal meeting held
in accordance with the provisions of these by-laws.

                                  ARTICLE XII

                  Indemnification of Directors and Officers

1.   INDEMNIFICATION. The corporation shall indemnify any person who was or is a
     party or is threatened to be made a party to any proceeding, whether civil,
     criminal,  administrative  or investigative  (other than an action by or in
     the right of the  corporation) by reason of the fact that such person is or
     was a director,  trustee, officer, employee or agent of the corporation, or
     is or was serving at the request of the corporation as a director, trustee,
     officer,  employee  or agent of  another  corporation,  partnership,  joint
     venture, trust or other enterprise,  against expenses (including attorneys'
     fees),  judgments,  fines  and  amounts  paid in  settlement  actually  and
     reasonably  incurred by such person in connection with such action, suit or
     proceeding  if such person  acted in good faith and in a manner such person
     reasonably  believed to be in or not opposed to the best  interests  of the
     corporation,  and with respect to any criminal action or proceeding, had no
     reasonable  cause to  believe  such  person's  conduct  was  unlawful.  The
     termination  of  any  action,  suit  or  proceeding  by  judgment,   order,
     settlement,   conviction,  or  upon  a  plea  of  nolo  contendere  or  its
     equivalent,  shall not, by itself, create a presumption that the person did
     not act in good faith and in a manner which the person reasonably  believed
     to be in or not opposed to the best interest of the  corporation,  and with
     respect to any  criminal  action or  proceeding,  had  reasonable  cause to
     believe that such person's conduct was lawful.

                                       9
<PAGE>

2.   DERIVATIVE ACTION. The corporation shall indemnify any person who was or is
     a party or is threatened to be made a party to any  threatened,  pending or
     completed action or suit by or in the right of the corporation to procure a
     judgment in the corporation's  favor by reason of the fact that such person
     is  or  was  a  director,  trustee,  officer,  employee  or  agent  of  the
     corporation,  or is or was serving at the request of the  corporation  as a
     director,  trustee,  officer,  employee or agent of any other  corporation,
     partnership,  joint venture,  trust or other  enterprise,  against expenses
     (including  attorneys'  fees),   judgments,   fines  and  amounts  paid  in
     settlement  actually and  reasonably  incurred by such person in connection
     with such action, suit or proceeding if such person acted in good faith and
     in a manner such person reasonably  believed to be in or not opposed to the
     best   interests   of  the   corporation;   provided,   however,   that  no
     indemnification  shall be made in respect of any claim,  issue or matter as
     to which  such  person  shall  have been  adjudged  to be liable  for gross
     negligence or willful  misconduct in the  performance of such person's duty
     to the  corporation  unless and only to the extent  that the court in which
     such action or suit was brought  shall  determine  upon  application  that,
     despite  circumstances  of the case,  such person is fairly and  reasonably
     entitled to  indemnity  for such  expenses as such court shall deem proper.
     The  termination  of any action,  suit or  proceeding  by judgment,  order,
     settlement,   conviction,  or  upon  a  plea  of  nolo  contendere  or  its
     equivalent,  shall not, by itself, create a presumption that the person did
     not act in good faith and in a manner which the person reasonably  believed
     to be in or not opposed to the best interest of the corporation.

3.   SUCCESSFUL  DEFENSE.  To the  extent  that a  director,  trustee,  officer,
     employee or agent of the corporation has been successful,  on the merits or
     otherwise,  in  whole  or in  part,  in  defense  of any  action,  suit  or
     proceeding  referred to in  paragraphs 1 and 2 above,  or in defense of any
     claim,  issue or matter therein,  such person shall be indemnified  against
     expenses  (including  attorneys' fees) actually and reasonably  incurred by
     such person in connection therewith.

4.   AUTHORIZATION.  Any  indemnification  under paragraph 1 and 2 above (unless
     ordered by a court) shall be made by the corporation  only as authorized in
     the  specific  case  upon  a  determination  that  indemnification  of  the
     director,   trustee,   officer,   employee   or  agent  is  proper  in  the
     circumstances  because  such  person  has met the  applicable  standard  of
     conduct set forth in paragraph 1 and 2 above. Such  determination  shall be
     made  (a)  by the  board  of  directors  by a  majority  vote  of a  quorum
     consisting  of  directors  who were not  parties  to such  action,  suit or
     proceeding,  (b) by independent  legal counsel  (selected by one or more of
     the directors, whether or not a quorum and whether or not disinterested) in
     a  written  opinion,  or (c)  by the  stockholders.  Anyone  making  such a
     determination  under this  paragraph 4 may determine  that a person has met
     the  standards  therein set forth as to some claims,  issues or matters but
     not as to  others,  and  may  reasonably  prorate  amounts  to be  paid  as
     indemnification.

5.   ADVANCES.  Expenses incurred in defending civil or criminal actions,  suits
     or proceedings  shall be paid by the corporation,  at any time or from time
     to time in  advance  of the  final  disposition  of  such  action,  suit or
     proceeding as  authorized in the manner  provided in paragraph 4 above upon
     receipt  of an  undertaking  by or on  behalf  of  the  director,  trustee,
     officer,  employee or agent to repay such amount unless it shall ultimately
     be determined by the corporation that the payment of expenses is authorized
     in this Section.

                                       10
<PAGE>

6.   NONEXCLUSIVITY.  The indemnification  provided in this Section shall not be
     deemed  exclusive  of any other  rights to which those  indemnified  may be
     entitled  under  any  law,  by-law,  agreement,  vote  of  stockholders  or
     disinterested  director or  otherwise,  both as to action in such  person's
     official  capacity and as to action in another  capacity while holding such
     office,  and shall continue as to a person who has ceased to be a director,
     trustee,  officer, employee or agent and shall insure to the benefit of the
     heirs, executors, and administrators of such a person.

7.   INSURANCE.  The  Corporation  shall have the power to purchase and maintain
     insurance  on  behalf  of any  person  who is or was a  director,  trustee,
     officer, employee or agent of the corporation,  or is or was serving at the
     request of the  corporation as a director,  trustee,  officer,  employee or
     agent  of any  corporation,  partnership,  joint  venture,  trust  or other
     enterprise,  against any liability assessed against such person in any such
     capacity or arising out of such person's status as such, whether or not the
     corporation  would have the power to  indemnify  such person  against  such
     liability.

8.   "CORPORATION"  DEFINED.  For  purpose  of this  action,  references  to the
     "corporation"   shall  include,   in  addition  to  the  corporation,   any
     constituent  corporation  (including  any  constituent  of  a  constituent)
     absorbed in a consolidation or merger which, if its separate  existence had
     continued,  would  have  had the  power  and  authority  to  indemnify  its
     directors,  trustees, officers, employees or agents, so that any person who
     is or was a  director,  trustee,  officer,  employee  or  agent  of such of
     constituent  corporation  will  be  considered  as  if  such  person  was a
     director, trustee, officer, employee or agent of the corporation.



                                       11
<PAGE>



                               VERTICALBUYER, INC.
            (INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE)

This certifies that ----------

is the registered owner of ----------------

fully paid and non-assessable shares of common stock, $.001 par value each of

                               VERTICALBUYER, INC.

    Transferable  on the books of the Corporation in person or by  attorney upon
surrender of this  Certificate  duly endorsed or assigned.  This Certificate and
the shares represented hereby  are subject to the laws of the State of Delaware,
and to the Certificate of Incorporation  and By-laws of the Corporation,  as now
or hereafter amended.  This Certificate is not valid unless countersigned by the
Transfer Agent

     WITNESS the facsimile seal of the Corporation and the facsimile  signatures
of its duly authorized officers.

Dated: ----------------

                                  VERTALBUYER, INC.
/s/ Leslie Kent                    CORPORATE SEAL          /s/ Tim Rosen
- ----------------                       1999                --------------------
   Secretary                         DELAWARE                 President

                                                                 Countersigned:
                                         Olde Monmouth Stock Transfer Co., Inc.
                                                                 Transfer Agent

                                                           AUTHORIZED SIGNATURE



<PAGE>


     The following  abbreviations,  when used in the  inscription on the face of
this  certificate,  shall be  construed  as though they were written out in full
according to applicable laws or regulations:

TEN COM - as tenants in common
TEN ENT - as tenants by the entireties
JT TEN -  as joint tenants with right of
         survivorship and not as tenants
         in common and not as community property

UNIFORM GIFTS TO MINORS ACT

(Custodian)                       (Minor)
under the Uniform Gifts of Minors Act of  the State of ------------------

FOR VALUE RECEIVED, the undersigned hereby sells, assigns and transfers unto:

Please insert social security
or other identifying number: -----------------

(Insert name and address, including zip code):

- ----------------------------------------------------

- ----------------------------------------------------

- --------------------------------------------- shares

of the Common Stock represented by the within Certificate and do hereby
irrevocably constitute and appoint

- ----------------------------------------------------

to transfer the said shares on the books of the within named Corporation
with full power of substitution in the premises.



DATED: -------------                  ---------------------------------------


     NOTICE:  The signature to this  assignment must correspond with the name as
it is  written  upon the face of the  Certificate  in every  particular  without
alteration or enlargement or any change whatever.


SIGNATURE GUARANTEE:

<PAGE>




                                CLASS "A" WARRANT


     THIS  WARRANT  CERTIFIES  THAT  CSP  INC.  ("CSPI"),   40  Linnell  Circle,
Billerica, MA 01821, a Massachusetts  corporation,  is entitled to purchase from
VERTICALBUYER, INC., a Delaware corporation, ("VerticalBuyer"), at the price and
during the period as hereinafter specified, up to one (1,000,000) million shares
(the  "Shares")  of  VerticalBuyer  common  stock,  $.001 par  value per  share.
References  to  "CSPI"  in  this  apply  to CSPI  and,  as  appropriate,  to any
transferee, if any, of the Warrant.

1.       EXERCISE

     (a)  Price  and  Period.  The  rights  represented  by  this  warrant  (the
          "Warrant")  shall be  exercisable  for a period of two (2) years  (the
          "Exercise  Period")  beginning on the effective  date (the  "Effective
          Date")  of  a   registration   statement   covering  the  Shares  (the
          "Registration  Statement")  filed  with the  Securities  and  Exchange
          Commission ("SEC") at an exercise price of $1.00 per Share, subject to
          adjustment in accordance with paragraph 7 hereof.

     (b)  Redemption.  Commencing on the Effective Date,  VerticalBuyer  may, at
          its  option,  redeem  the  Warrant  in whole,  but not in part,  for a
          redemption  price of $100,  on not less than 30 days'  notice to CSPI.
          The right to redeem the  Warrant  may be  exercised  by  VerticalBuyer
          during the Exercise Period only in the event that (i) the registration
          statement  (including any  post-effective  amendment thereto effective
          with  the SEC,  which  Registration  Statement  would  enable  CSPI to
          exercise  the  Warrant  and  sell  the   underlying   Shares   without
          restriction  (ii) any notice of the call for  redemption  is given not
          more  than  10  business  days  after  the   effective   date  of  the
          Registration Statement;  and (iii) the expiration of the 30 day notice
          period is  within  the  Exercise  Period.  In the event  VerticalBuyer
          exercises its right to redeem the Warrant, the Expiration Date will be
          deemed to be, and the rights  under the  Warrant  will be  exercisable
          until the close of business on, the date fixed for  redemption in such
          notice.  If any Warrant called for redemption is not exercised by such
          time, it will cease to be  exercisable  and CSPI will be entitled only
          to the redemption price.

2.       EXERCISE PROCEDURE

     The Warrant may be exercised at any time within the period above specified,
in whole or in part, by

     (i)  the surrender of the Warrant,  with the purchase  form (the  "Purchase
          Form") at the end hereof properly executed, at the principal executive
          office  of  VerticalBuyer,  at  the  office  of  Olde  Monmouth  Stock
          Transfer,  Inc., 77 Memorial Parkway (Suite 101),  Atlantic Highlands,
          New Jersey 07716 (the "Warrant Agent") (or such other office or agency
          as  VerticalBuyer  may  designate  by notice in writing to CSPI at the
          address of CSPI appearing on its books); and
<PAGE>

     (ii) payment to  VerticalBuyer of the Exercise Price then in effect for the
          number  of  Shares  specified  in  the  Purchase  Form  together  with
          applicable stock transfer taxes, if any; and

          The  Warrant  shall be deemed to have been  exercised,  in whole or in
          part to the  extent  specified,  immediately  prior  to the  close  of
          business on the date it is surrendered and payment is made in pursuant
          to this  paragraph,  and the  person or persons in whose name or names
          the certificates for Shares shall be issuable upon such exercise shall
          become the holders as of that date. The certificates for the Shares so
          purchased shall be delivered to the holder(s) within a reasonable time
          after the Warrant shall have been exercised. 2. EXERCISE PROCEDURE

     The Warrant may be exercised at any time within the period above specified,
     in whole or in part, by

     (i)  the surrender of the Warrant,  with the purchase  form (the  "Purchase
          Form") at the end hereof properly executed, at the principal executive
          office  of  VerticalBuyer,  at  the  office  of  Olde  Monmouth  Stock
          Transfer,  Inc., 77 Memorial Parkway (Suite 101),  Atlantic Highlands,
          New Jersey 07716 (the "Warrant Agent") (or such other office or agency
          as  VerticalBuyer  may  designate  by notice in writing to CSPI at the
          address of CSPI appearing on its books); and

     (ii) payment to  VerticalBuyer of the Exercise Price then in effect for the
          number  of  Shares  specified  in  the  Purchase  Form  together  with
          applicable stock transfer taxes, if any; and

          The  Warrant  shall be deemed to have been  exercised,  in whole or in
          part to the  extent  specified,  immediately  prior  to the  close  of
          business on the date it is surrendered and payment is made in pursuant
          to this  paragraph,  and the  person or persons in whose name or names
          the certificates for Shares shall be issuable upon such exercise shall
          become the holders as of that date. The certificates for the Shares so
          purchased shall be delivered to the holder(s) within a reasonable time
          after the Warrant shall have been exercised.

3.   TRANSFER

     The Warrant is issued under  Regulation D to the United  States  Securities
     Act of 1933,  as amended  (the "1933 Act"),  and shall not be  transferred,
     sold,   assigned,   or   hypothecated   except  pursuant  to  an  effective
     registration  statement under the 1933 Act or an exemption  therefrom.  Any
     such assignment shall be effected by CSPI by

     (i)  executing the form of assignment at the end hereof and

     (ii) surrendering  the Warrant for  cancellation at the office or agency of
          VerticalBuyer referred to in paragraph 2 hereof,

     whereupon  VerticalBuyer  shall  issue,  in the name(s)  specified  by CSPI
     ("Transferee(s)")  and,  which may include CSPI,  new Warrant of like tenor
     representing in the aggregate  rights to purchase the same number of Shares
     as are purchasable hereunder.

4.   UNDERLYING SHARES OF COMMON STOCK

     VerticalBuyer covenants and agrees that all Shares which may be issued upon
     exercise of the Warrants will,  upon issuance,  be duly and validly issued,
     fully paid and  nonassessable.  VerticalBuyer  further covenants and agrees
     that  during  the  periods  within  which  the  Warrant  may be  exercised,
     VerticalBuyer  will at all times have  authorized and reserved a sufficient
     number of Shares to provide for the exercise of the Warrant.

                                       2
<PAGE>

5.   NO ENTITLEMENT

     The Warrant shall not entitle CSPI to any voting, dividend, or other rights
     as a stockholder of VerticalBuyer.

6.   REGISTRATION STATEMENT AND INDEMNIFICATION

     VerticalBuyer will perform and carry out its obligations under that certain
     Registration  Rights  Agreement by and between  VerticalBuyer  and CSPI, of
     even date herewith

7.   ADJUSTMENT

     The  Exercise  Price  in  effect  at any time  and the  number  and kind of
     securities purchasable upon the exercise of the Warrant shall be subject to
     adjustment  from  time to time  upon the  happening  of  certain  events as
     follows:

     (a)  In  case  VerticalBuyer  shall  (i)  declare  a  dividend  or  make  a
          distribution on its outstanding  Shares,  (ii) subdivide or reclassify
          its  outstanding  shares of into a greater number of shares,  or (iii)
          combine or reclassify its outstanding  shares into a smaller number of
          shares,  the  Exercise  Price in effect at the time of the record date
          for such dividend or  distribution  or of the  effective  date of such
          subdivision, combination or reclassification shall be adjusted so that
          it shall equal the price  determined by multiplying the Exercise Price
          by a fraction,  the denominator of which shall be the number of shares
          outstanding  after giving effect to such action,  and the numerator of
          which shall be the number of shares  outstanding  immediately prior to
          such action.

     (b)  In case  VerticalBuyer  shall fix a record  date for the  issuance  of
          rights or warrants to all holders of its common stock  entitling  them
          to subscribe for or purchase  Shares (or securities  convertible  into
          common  stock) at  a  price  (the  "Subscription  Price") or  having a
          conversion  price per share) less than the current market price of the
          Shares  (as  defined  in  Subsection  (e)  below) on the  record  date
          mentioned below, the Exercise Price shall be adjusted so that the same
          shall equal the price  determined by multiplying  the number of shares
          then comprising underlying Shares by the product of the Exercise Price
          in effect immediately prior to the date of such issuance multiplied by
          a fraction,  the  numerator of which shall be the sum of the number of
          Shares  outstanding on the record date mentioned  below and the number
          of additional  Shares which the aggregate  offering price of the total
          number of Shares so offered (or the aggregate  conversion price of the
          convertible  securities  so offered)  would  purchase at such  current
          market price per share of its common  stock,  and the  denominator  of
          which  shall be the sum of the  number of Shares  outstanding  on such
          record  date  and  the  number  of  additional   Shares   offered  for
          subscription or purchase (or into which the convertible  securities so
          offered are  convertible).  Such adjustment shall be made successively
          whenever such rights or warrants are issued and shall become effective
          immediately   after  the  record   date  for  the   determination   of
          shareholders  entitled to receive such rights or warrants;  and to the
          extent that Shares are not delivered (or securities  convertible  into
          its  common  stock are not  delivered)  after the  expiration  of such
          rights or  warrants  the  Exercise  Price shall be  readjusted  to the
          Exercise Price which would then be in effect had the adjustments  made
          upon the issuance of such rights or warrants  been made upon the basis
          of  delivery of only the number of Shares (or  securities  convertible
          into its common stock actually delivered).

                                       3
<PAGE>

     (c)  In case VerticalBuyer shall hereafter distribute to the holders of its
          common stock evidences of its  indebtedness or assets  (excluding cash
          dividends or distributions  and dividends or distributions referred to
          in Subsection (a) above) or subscription rights or warrants (excluding
          those referred to in Subsection (b) above), then in each such case the
          Exercise Price in effect thereafter shall be determined by multiplying
          the number of shares then  comprising  an Shares by the product of the
          Exercise  Price in effect  immediately  prior thereto  multiplied by a
          fraction,  the  numerator of which shall be the total number of Shares
          outstanding  multiplied by the current  market price of the Shares (as
          defined in  Subsection  (e)  below),  less the fair  market  value (as
          determined  by  VerticalBuyer's  Board of  Directors) of the assets or
          evidences  of  indebtedness  so  distributed  or  of  such  rights  or
          warrants,  and the  denominator  of which shall be the total number of
          Shares  outstanding  multiplied by such current market price per share
          of its  common  stock.  Such  adjustment  shall  be made  successively
          whenever such a record date is fixed.  Such  adjustment  shall be made
          whenever  any such  distribution  is made and shall  become  effective
          immediately   after  the  record   date  for  the   determination   of
          shareholders entitled to receive such distribution.

     (d)  Whenever the Exercise  Price  payable upon  exercise of the Warrant is
          adjusted  pursuant to Subsections (a), (b) or (c) above, the number of
          Shares  purchasable upon exercise of the Warrant shall  simultaneously
          be adjusted by  multiplying  the number of Shares  initially  issuable
          upon  exercise of the Warrant by the  Exercise  Price in effect on the
          date hereof and  dividing  the  product so  obtained  by the  Exercise
          Price, as adjusted.

     (e)  For the purpose of any computation under Subsections (b) or (c) above,
          the  current  market  price per share of its common  stock at any date
          shall be deemed to be the average of the daily  closing  prices for 20
          consecutive business days before such date. The closing price for each
          day  shall be the last  sale  price  regular  way or,  in case no such
          reported  sale  takes  place  on such  day,  the  average  of the last
          reported  bid and asked  prices  regular  way,  in either  case on the
          principal  national  securities  exchange on which its common stock is
          admitted to trading or listed, or if not listed or admitted to trading
          on such exchange,  the average of the highest  reported bid and lowest
          reported  asked  prices as  reported  by  NASDAQ,  or if not listed or
          admitted to trading on such market, than the Over the Counter Bulletin
          Board  ("OTCBB")  or other  similar  organization  if the  OTCBB is no
          longer reporting such  information,  or if not so available,  the fair
          market price as determined by the Board of Directors.

     (f)  All  calculations  under this  Section 8 shall be made to the  nearest
          cent or to the nearest  one-hundredth  of a share, as the case may be.
          Anything  in  this   Section  8  to  the   contrary   notwithstanding,
          VerticalBuyer  shall be entitled,  but shall not be required,  to make
          such changes in the Exercise  Price,  in addition to those required by
          this Section 8, as it shall determine,  in its sole discretion,  to be
          advisable in order that any dividend or distribution in Shares, or any
          subdivision,  reclassification  or  combination  of its common  stock,
          hereafter made by VerticalBuyer shall not result in any Federal Income
          tax  liability  to the  holders  of its  common  stock  or  securities
          convertible into its common stock.

     (g)  Whenever  the  Exercise  Price  is  adjusted,   as  herein   provided,
          VerticalBuyer  shall  promptly,  but no later  than 10 days  after any
          request for such an adjustment by CSPI,  cause a notice  setting forth
          the adjusted  Exercise  Price and adjusted  number of Shares  issuable
          upon exercise of the Warrant and, if requested, information describing
          the  transactions  giving  rise to such  adjustments,  to be mailed to
          CSPI,  at the  address set forth  herein,  and shall cause a certified
          copy thereof to be mailed to its transfer agent, if any. VerticalBuyer
          may retain a firm of independent certified public accountants selected
          by its  board  of  directors  (which  may be the  regular  accountants
          employed by  VerticalBuyer)  to make any computation  required by this
          Section 8, and a  certificate  signed by such firm shall be conclusive
          evidence of the correctness of such adjustment.

     (h)  In the event  that at any  time,  as a result  of an  adjustment  made
          pursuant  to  Subsection  (a)  above,  CSPI  thereafter  shall  become
          entitled to receive any shares of VerticalBuyer, other than its common
          stock,  thereafter the number of such other shares so receivable  upon
          exercise of the Warrant  shall be subject to  adjustment  from time to
          time in a manner and on terms as nearly  equivalent as  practicable to
          the  provisions   with  respect  to  its  common  stock  contained  in
          Subsections (a) to (g), inclusive above.

8.       APPLICABLE LAW

     The Warrant  shall be governed  by and in  accordance  with the laws of the
     State of  Massachusetts  applied to  contracts  made and before  within the
     State of Massachusetts.

     IN WITNESS  WHEREOF,  VerticalBuyer,  Inc.,  has  caused the  Warrant to be
signed by its duly authorized  officer under its corporate seal, and the Warrant
to be dated the date first above written.

         VERTICALBUYER, INC.                 CSP INC.

         By: ---------------------           By: ------------------------------
             Tim Rose, President                 Alexander Lupinetti, President

                                        4

<PAGE>




                                  TRANSFER FORM


                (To be signed only upon transfer of the Warrant)



     For value received,  the undersigned hereby sells,  assigns,  and transfers
unto  --------------------  the right to purchase  Shares of the Common Stock of
VerticalBuyer, Inc., in the numbers set forth below represented by the foregoing
Warrant    to   the    extent    of   ------------    shares    and    appoints
- ---------------------  as  attorney-in-fact  to transfer such rights on the
books of VerticalBuyer, Inc., with full power of substitution in the premises.


Dated:

Name:

Signature:

Address:




In the presence of:









<PAGE>



                                  PURCHASE FORM


                   (To be signed only upon exercise of option)



     THE  UNDERSIGNED,  the holder of the  foregoing  Warrant  (the  "Warrant"),
hereby  irrevocably  elects to exercise the purchase  rights  represented by the
Warrant for, and to purchase  thereunder, ---------- shares of the common stock,
$.001 par value ("Shares") of VerticalBuyer,  Inc.,  exercisable for a period of
one year after the date of an effective  registration  statement relating to the
Shares  underlying  the Warrant makes  payment of  $----------  therefor,  and
requests that the  certificates  for the Shares be issued in the name(s) of, and
delivered as follows:



         Name(s)

         Address:





         Dated:


<PAGE>






                                CLASS "B" WARRANT


     THIS  WARRANT  CERTIFIES  THAT  CSP  INC.  ("CSPI"),   40  Linnell  Circle,
Billerica, MA 01821, a Massachusetts  corporation,  is entitled to purchase from
VERTICALBUYER, INC., a Delaware corporation, ("VerticalBuyer"), at the price and
during the period as hereinafter specified, up to one (1,000,000) million shares
(the  "Shares")  of  VerticalBuyer  common  stock,  $.001 par  value per  share.
References  to  "CSPI"  in  this  apply  to CSPI  and,  as  appropriate,  to any
transferee, if any, of the Warrant.

1.       EXERCISE

     (a)  Price  and  Period.  The  rights  represented  by  this  warrant  (the
          "Warrant")  shall be  exercisable  for a period of two (2) years  (the
          "Exercise  Period")  beginning on the effective  date (the  "Effective
          Date")  of  a   registration   statement   covering  the  Shares  (the
          "Registration  Statement")  filed  with the  Securities  and  Exchange
          Commission ("SEC"),  at an exercise price of $1.00 per Share,  subject
          to adjustment in accordance with paragraph 7 of hereof.

     (b)  Redemption.  Commencing on the Effective Date,  VerticalBuyer  may, at
          its  option,  redeem  the  Warrant  in whole,  but not in part,  for a
          redemption  price of $100,  on not less than 30 days'  notice to CSPI.
          The right to redeem the  Warrant  may be  exercised  by  VerticalBuyer
          during the  Exercise  Period  only in the event  that (i) the  closing
          price on the market on which the Shares  trade as defined in paragraph
          7(e) is at least  $2.00  subject to  adjustment  for stock  splits and
          combinations and similar events for 20 consecutive  trading days; (ii)
          the registration  statement  (including any  post-effective  amendment
          thereto is effective with the SEC, which registration  statement would
          enable CSPI to exercise  the Warrant and sell the  underlying  Shares;
          without  reservation  (iii) any notice of the call for  redemption  is
          given  not  more  than  10  business  days  after  the  period  of  20
          consecutive  trading  days  referred  to in (i)  above;  and  (iv) the
          expiration of the 30 day notice period is within the Exercise  Period.
          In the event VerticalBuyer  exercises its right to redeem the Warrant,
          the  Expiration  Date will be deemed to be, and the  rights  under the
          Warrant will be  exercisable  until the close of business on, the date
          fixed  for  redemption  in such  notice.  If any  Warrant  called  for
          redemption  is not  exercised  by  such  time,  it  will  cease  to be
          exercisable and CSPI will be entitled only to the redemption price.

2.   EXERCISE PROCEDURE

     The Warrant may be exercised at any time within the period above specified,
     in whole or in part, by

     (i)  the surrender of the Warrant,  with the purchase  form (the  "Purchase
          Form") at the end hereof properly executed, at the principal executive
          office  of  VerticalBuyer,  at  the  office  of  Olde  Monmouth  Stock
          Transfer,  Inc., 77 Memorial Parkway (Suite 101),  Atlantic Highlands,
          New Jersey 07716 (the "Warrant Agent") (or such other office or agency
          as  VerticalBuyer  may  designate  by notice in writing to CSPI at the
          address of CSPI appearing on its books); and

<PAGE>

     (ii) payment to  VerticalBuyer of the Exercise Price then in effect for the
          number  of  Shares  specified  in  the  Purchase  Form  together  with
          applicable stock transfer taxes, if any; and

          The  Warrant  shall be deemed to have been  exercised,  in whole or in
          part to the  extent  specified,  immediately  prior  to the  close  of
          business on the date it is surrendered and payment is made in pursuant
          to this  paragraph,  and the  person or persons in whose name or names
          the certificates for Shares shall be issuable upon such exercise shall
          become the holders as of that date. The certificates for the Shares so
          purchased shall be delivered to the holder(s) within a reasonable time
          after the Warrant shall have been exercised.

3.   TRANSFER

     The Warrant is issued under  Regulation D to the United  States  Securities
     Act of 1933,  as amended  (the "1933 Act"),  and shall not be  transferred,
     sold,   assigned,   or   hypothecated   except  pursuant  to  an  effective
     registration  statement under the 1933 Act or an exemption  therefrom.  Any
     such assignment shall be effected by CSPI by

     (i)  executing the form of assignment at the end hereof and

     (ii) surrendering  the Warrant for  cancellation at the office or agency of
          VerticalBuyer referred to in paragraph 2 hereof,

     whereupon  VerticalBuyer  shall  issue,  in the name(s)  specified  by CSPI
     ("Transferee(s)")  and,  which may include CSPI,  new Warrant of like tenor
     representing in the aggregate  rights to purchase the same number of Shares
     as are purchasable hereunder.

4.   UNDERLYING SHARES OF COMMON STOCK

     VerticalBuyer covenants and agrees that all Shares which may be issued upon
     exercise of the Warrants will,  upon issuance,  be duly and validly issued,
     fully paid and  nonassessable.  VerticalBuyer  further covenants and agrees
     that  during  the  periods  within  which  the  Warrant  may be  exercised,
     VerticalBuyer  will at all times have  authorized and reserved a sufficient
     number of Shares to provide for the exercise of the Warrant.

                                       2
<PAGE>

5.   NO ENTITLEMENT

     The Warrant shall not entitle CSPI to any voting, dividend, or other rights
     as a stockholder of VerticalBuyer.

6.   REGISTRATION STATEMENT AND INDEMNIFICATION

     VerticalBuyer will perform and carry out its obligations under that certain
     Registration  Rights  Agreement by and between  VerticalBuyer  and CSPI, of
     even date herewith

7.   ADJUSTMENT

     The  Exercise  Price  in  effect  at any time  and the  number  and kind of
     securities purchasable upon the exercise of the Warrant shall be subject to
     adjustment  from  time to time  upon the  happening  of  certain  events as
     follows:

     (a)  In  case  VerticalBuyer  shall  (i)  declare  a  dividend  or  make  a
          distribution on its outstanding  Shares,  (ii) subdivide or reclassify
          its  outstanding  shares of into a greater number of shares,  or (iii)
          combine or reclassify its outstanding  shares into a smaller number of
          shares,  the  Exercise  Price in effect at the time of the record date
          for such dividend or  distribution  or of the  effective  date of such
          subdivision, combination or reclassification shall be adjusted so that
          it shall equal the price  determined by multiplying the Exercise Price
          by a fraction,  the denominator of which shall be the number of shares
          outstanding  after giving effect to such action,  and the numerator of
          which shall be the number of shares  outstanding  immediately prior to
          such action.

     (b)  In case  VerticalBuyer  shall fix a record  date for the  issuance  of
          rights or warrants to all holders of its common stock  entitling  them
          to subscribe for or purchase  Shares (or securities  convertible  into
          common  stock) at a price  (the  "Subscription  Price")  (or  having a
          conversion  price per share) less than the current market price of the
          Shares  (as  defined  in  Subsection  (e)  below) on the  record  date
          mentioned below, the Exercise Price shall be adjusted so that the same
          shall equal the price  determined by multiplying  the number of shares
          then comprising underlying Shares by the product of the Exercise Price
          in effect immediately prior to the date of such issuance multiplied by
          a fraction,  the  numerator of which shall be the sum of the number of
          Shares  outstanding on the record date mentioned  below and the number
          of additional  Shares which the aggregate  offering price of the total
          number of Shares so offered (or the aggregate  conversion price of the
          convertible  securities  so offered)  would  purchase at such  current
          market price per share of its common  stock,  and the  denominator  of
          which  shall be the sum of the  number of Shares  outstanding  on such
          record  date  and  the  number  of  additional   Shares   offered  for
          subscription or purchase (or into which the convertible  securities so
          offered are  convertible).  Such adjustment shall be made successively
          whenever such rights or warrants are issued and shall become effective
          immediately   after  the  record   date  for  the   determination   of
          shareholders  entitled to receive such rights or warrants;  and to the
          extent that Shares are not delivered (or securities  convertible  into
          its  common  stock are not  delivered)  after the  expiration  of such
          rights or  warrants  the  Exercise  Price shall be  readjusted  to the
          Exercise Price which would then be in effect had the adjustments  made
          upon the issuance of such rights or warrants  been made upon the basis
          of  delivery of only the number of Shares (or  securities  convertible
          into its common stock actually delivered).

                                       3
<PAGE>

     (c)  In case VerticalBuyer shall hereafter distribute to the holders of its
          common stock evidences of its  indebtedness or assets  (excluding cash
          dividends or distributions  and dividends or distributions referred to
          in Subsection (a) above) or subscription rights or warrants (excluding
          those referred to in Subsection (b) above), then in each such case the
          Exercise Price in effect thereafter shall be determined by multiplying
          the number of shares then  comprising  an Shares by the product of the
          Exercise  Price in effect  immediately  prior thereto  multiplied by a
          fraction,  the  numerator of which shall be the total number of Shares
          outstanding  multiplied by the current  market price of the Shares (as
          defined in  Subsection  (e)  below),  less the fair  market  value (as
          determined  by  VerticalBuyer's  Board of  Directors) of the assets or
          evidences  of  indebtedness  so  distributed  or  of  such  rights  or
          warrants,  and the  denominator  of which shall be the total number of
          Shares  outstanding  multiplied by such current market price per share
          of its  common  stock.  Such  adjustment  shall  be made  successively
          whenever such a record date is fixed.  Such  adjustment  shall be made
          whenever  any such  distribution  is made and shall  become  effective
          immediately   after  the  record   date  for  the   determination   of
          shareholders entitled to receive such distribution.

     (d)  Whenever the Exercise  Price  payable upon  exercise of the Warrant is
          adjusted  pursuant to Subsections (a), (b) or (c) above, the number of
          Shares  purchasable upon exercise of the Warrant shall  simultaneously
          be adjusted by  multiplying  the number of Shares  initially  issuable
          upon  exercise of the Warrant by the  Exercise  Price in effect on the
          date hereof and  dividing  the  product so  obtained  by the  Exercise
          Price, as adjusted.

     (e)  For the purpose of any computation under Subsections (b) or (c) above,
          the  current  market  price per share of its common  stock at any date
          shall be deemed to be the average of the daily  closing  prices for 20
          consecutive business days before such date. The closing price for each
          day  shall be the last  sale  price  regular  way or,  in case no such
          reported  sale  takes  place  on such  day,  the  average  of the last
          reported  bid and asked  prices  regular  way,  in either  case on the
          principal  national  securities  exchange on which its common stock is
          admitted to trading or listed, or if not listed or admitted to trading
          on such exchange,  the average of the highest  reported bid and lowest
          reported  asked  prices as  reported  by  NASDAQ,  or if not listed or
          admitted to trading on such market, than the Over the Counter Bulletin
          Board  ("OTCBB")  or other  similar  organization  if the  OTCBB is no
          longer reporting such  information,  or if not so available,  the fair
          market price as determined by the Board of Directors.

     (f)  All  calculations  under this  Section 8 shall be made to the  nearest
          cent or to the nearest  one-hundredth  of a share, as the case may be.
          Anything  in  this   Section  8  to  the   contrary   notwithstanding,
          VerticalBuyer  shall be entitled,  but shall not be required,  to make
          such changes in the Exercise  Price,  in addition to those required by
          this Section 8, as it shall determine,  in its sole discretion,  to be
          advisable in order that any dividend or distribution in Shares, or any
          subdivision,  reclassification  or  combination  of its common  stock,
          hereafter made by VerticalBuyer shall not result in any Federal Income
          tax  liability  to the  holders  of its  common  stock  or  securities
          convertible into its common stock.

     (g)  Whenever  the  Exercise  Price  is  adjusted,   as  herein   provided,
          VerticalBuyer  shall  promptly,  but no later  than 10 days  after any
          request for such an adjustment by CSPI,  cause a notice  setting forth
          the adjusted  Exercise  Price and adjusted  number of Shares  issuable
          upon exercise of the Warrant and, if requested, information describing
          the  transactions  giving  rise to such  adjustments,  to be mailed to
          CSPI,  at the  address set forth  herein,  and shall cause a certified
          copy thereof to be mailed to its transfer agent, if any. VerticalBuyer
          may retain a firm of independent certified public accountants selected
          by its  board  of  directors  (which  may be the  regular  accountants
          employed by  VerticalBuyer)  to make any computation  required by this
          Section 8, and a  certificate  signed by such firm shall be conclusive
          evidence of the correctness of such adjustment.

                                       4
<PAGE>

     (h)  In the event  that at any  time,  as a result  of an  adjustment  made
          pursuant  to  Subsection  (a)  above,  CSPI  thereafter  shall  become
          entitled to receive any shares of VerticalBuyer, other than its common
          stock,  thereafter the number of such other shares so receivable  upon
          exercise of the Warrant  shall be subject to  adjustment  from time to
          time in a manner and on terms as nearly  equivalent as  practicable to
          the  provisions   with  respect  to  its  common  stock  contained  in
          Subsections (a) to (g), inclusive above.

8.       APPLICABLE LAW

     The Warrant  shall be governed  by and in  accordance  with the laws of the
     State of  Massachusetts  applied to  contracts  made and before  within the
     State of Massachusetts.

     IN WITNESS  WHEREOF,  VerticalBuyer,  Inc.,  has  caused the  Warrant to be
signed by its duly authorized  officer under its corporate seal, and the Warrant
to be dated the date first above written.


         VERTICALBUYER, INC.

         By:                                By:
             -------------------                ------------------------------
             Tim Rose, President                Alexander Lupinetti, President






                                       5


<PAGE>



                                  TRANSFER FORM


                (To be signed only upon transfer of the Warrant)



     For value received,  the undersigned hereby sells,  assigns,  and transfers
unto  --------------------  the right to purchase  Shares of the Common Stock of
VerticalBuyer, Inc., in the numbers set forth below represented by the foregoing
Warrant    to   the    extent    of   ------------    shares    and    appoints
- ---------------------  as  attorney-in-fact  to transfer such rights on the
books of VerticalBuyer, Inc., with full power of substitution in the premises.


Dated:

Name:

Signature:

Address:




In the presence of:





<PAGE>

                                  PURCHASE FORM


                   (To be signed only upon exercise of option)



     THE  UNDERSIGNED,  the holder of the  foregoing  Warrant  (the  "Warrant"),
hereby  irrevocably  elects to exercise the purchase  rights  represented by the
Warrant for, and to purchase  thereunder, ---------- shares of the common stock,
$.001 par value ("Shares") of VerticalBuyer,  Inc.,  exercisable for a period of
one year after the date of an effective  registration  statement relating to the
Shares  underlying  the Warrant makes  payment of  $----------  therefor,  and
requests that the  certificates  for the Shares be issued in the name(s) of, and
delivered as follows:



         Name(s)

         Address:





         Dated:




<PAGE>





                                CLASS "C" WARRANT


     THIS  WARRANT  CERTIFIES  THAT  CSP  INC.  ("CSPI"),   40  Linnell  Circle,
Billerica, MA 01821, a Massachusetts  corporation,  is entitled to purchase from
VERTICALBUYER, INC., a Delaware corporation, ("VerticalBuyer"), at the price and
during the period as hereinafter specified, up to one (1,000,000) million shares
(the  "Shares")  of  VerticalBuyer  common  stock,  $.001 par  value per  share.
References  to  "CSPI"  in  this  apply  to CSPI  and,  as  appropriate,  to any
transferee, if any, of the Warrant.

1.       EXERCISE

     (a)  Price  and  Period.  The  rights  represented  by  this  warrant  (the
          "Warrant")  shall be  exercisable  for a period of two (2) years  (the
          "Exercise  Period")  beginning on the effective  date (the  "Effective
          Date")  of  a   registration   statement   covering  the  Shares  (the
          "Registration  Statement")  filed  with the  Securities  and  Exchange
          Commission ("SEC"),  at an exercise price of $1.00 per Share,  subject
          to adjustment in accordance with paragraph 7 of hereof.

     (b)  Redemption.  Commencing on the Effective Date,  VerticalBuyer  may, at
          its  option,  redeem  the  Warrant  in whole,  but not in part,  for a
          redemption  price of $100,  on not less than 30 days'  notice to CSPI.
          The right to redeem the  Warrant  may be  exercised  by  VerticalBuyer
          during the  Exercise  Period  only in the event  that (i) the  closing
          price on the market on which the Shares  trade as defined in paragraph
          7(e) is at least  $2.00  subject to  adjustment  for stock  splits and
          combinations and similar events for 20 consecutive  trading days; (ii)
          the registration  statement  (including any  post-effective  amendment
          thereto is effective with the SEC, which registration  statement would
          enable CSPI to exercise  the Warrant and sell the  underlying  Shares;
          without  reservation  (iii) any notice of the call for  redemption  is
          given  not  more  than  10  business  days  after  the  period  of  20
          consecutive  trading  days  referred  to in (i)  above;  and  (iv) the
          expiration of the 30 day notice period is within the Exercise  Period.
          In the event VerticalBuyer  exercises its right to redeem the Warrant,
          the  Expiration  Date will be deemed to be, and the  rights  under the
          Warrant will be  exercisable  until the close of business on, the date
          fixed  for  redemption  in such  notice.  If any  Warrant  called  for
          redemption  is not  exercised  by  such  time,  it  will  cease  to be
          exercisable and CSPI will be entitled only to the redemption price.

2.   EXERCISE PROCEDURE

     The Warrant may be exercised at any time within the period above specified,
     in whole or in part, by

     (i)  the surrender of the Warrant,  with the purchase  form (the  "Purchase
          Form") at the end hereof properly executed, at the principal executive
          office  of  VerticalBuyer,  at  the  office  of  Olde  Monmouth  Stock
          Transfer,  Inc., 77 Memorial Parkway (Suite 101),  Atlantic Highlands,
          New Jersey 07716 (the "Warrant Agent") (or such other office or agency
          as  VerticalBuyer  may  designate  by notice in writing to CSPI at the
          address of CSPI appearing on its books); and

<PAGE>


     (ii) payment to  VerticalBuyer of the Exercise Price then in effect for the
          number  of  Shares  specified  in  the  Purchase  Form  together  with
          applicable stock transfer taxes, if any; and

          The  Warrant  shall be deemed to have been  exercised,  in whole or in
          part to the  extent  specified,  immediately  prior  to the  close  of
          business on the date it is surrendered and payment is made in pursuant
          to this  paragraph,  and the  person or persons in whose name or names
          the certificates for Shares shall be issuable upon such exercise shall
          become the holders as of that date. The certificates for the Shares so
          purchased shall be delivered to the holder(s) within a reasonable time
          after the Warrant shall have been exercised.

3.   TRANSFER

     The Warrant is issued under  Regulation D to the United  States  Securities
     Act of 1933,  as amended  (the "1933 Act"),  and shall not be  transferred,
     sold,   assigned,   or   hypothecated   except  pursuant  to  an  effective
     registration  statement under the 1933 Act or an exemption  therefrom.  Any
     such assignment shall be effected by CSPI by

     (i)  executing the form of assignment at the end hereof and

     (ii) surrendering  the Warrant for  cancellation at the office or agency of
          VerticalBuyer referred to in paragraph 2 hereof,

     whereupon  VerticalBuyer  shall  issue,  in the name(s)  specified  by CSPI
     ("Transferee(s)")  and,  which may include CSPI,  new Warrant of like tenor
     representing in the aggregate  rights to purchase the same number of Shares
     as are purchasable hereunder.

4.   UNDERLYING SHARES OF COMMON STOCK

     VerticalBuyer covenants and agrees that all Shares which may be issued upon
     exercise of the Warrants will,  upon issuance,  be duly and validly issued,
     fully paid and  nonassessable.  VerticalBuyer  further covenants and agrees
     that  during  the  periods  within  which  the  Warrant  may be  exercised,
     VerticalBuyer  will at all times have  authorized and reserved a sufficient
     number of Shares to provide for the exercise of the Warrant.

                                       2

<PAGE>

5.   NO ENTITLEMENT

     The Warrant shall not entitle CSPI to any voting, dividend, or other rights
     as a stockholder of VerticalBuyer.

6.   REGISTRATION STATEMENT AND INDEMNIFICATION

     VerticalBuyer will perform and carry out its obligations under that certain
     Registration  Rights  Agreement by and between  VerticalBuyer  and CSPI, of
     even date herewith

7.   ADJUSTMENT

     The  Exercise  Price  in  effect  at any time  and the  number  and kind of
     securities purchasable upon the exercise of the Warrant shall be subject to
     adjustment  from  time to time  upon the  happening  of  certain  events as
     follows:

     (a)  In  case  VerticalBuyer  shall  (i)  declare  a  dividend  or  make  a
          distribution on its outstanding  Shares,  (ii) subdivide or reclassify
          its  outstanding  shares of into a greater number of shares,  or (iii)
          combine or reclassify its outstanding  shares into a smaller number of
          shares,  the  Exercise  Price in effect at the time of the record date
          for such dividend or  distribution  or of the  effective  date of such
          subdivision, combination or reclassification shall be adjusted so that
          it shall equal the price  determined by multiplying the Exercise Price
          by a fraction,  the denominator of which shall be the number of shares
          outstanding  after giving effect to such action,  and the numerator of
          which shall be the number of shares  outstanding  immediately prior to
          such action.

     (b)  In case  VerticalBuyer  shall fix a record  date for the  issuance  of
          rights or warrants to all holders of its common stock  entitling  them
          to subscribe for or purchase  Shares (or securities  convertible  into
          common  stock) at a price  (the  "Subscription  Price")  (or  having a
          conversion  price per share) less than the current market price of the
          Shares  (as  defined  in  Subsection  (e)  below) on the  record  date
          mentioned below, the Exercise Price shall be adjusted so that the same
          shall equal the price  determined by multiplying  the number of shares
          then comprising underlying Shares by the product of the Exercise Price
          in effect immediately prior to the date of such issuance multiplied by
          a fraction,  the  numerator of which shall be the sum of the number of
          Shares  outstanding on the record date mentioned  below and the number
          of additional  Shares which the aggregate  offering price of the total
          number of Shares so offered (or the aggregate  conversion price of the
          convertible  securities  so offered)  would  purchase at such  current
          market price per share of its common  stock,  and the  denominator  of
          which  shall be the sum of the  number of Shares  outstanding  on such
          record  date  and  the  number  of  additional   Shares   offered  for
          subscription or purchase (or into which the convertible  securities so
          offered are  convertible).  Such adjustment shall be made successively
          whenever such rights or warrants are issued and shall become effective
          immediately   after  the  record   date  for  the   determination   of
          shareholders  entitled to receive such rights or warrants;  and to the
          extent that Shares are not delivered (or securities  convertible  into
          its  common  stock are not  delivered)  after the  expiration  of such
          rights or  warrants  the  Exercise  Price shall be  readjusted  to the
          Exercise Price which would then be in effect had the adjustments  made
          upon the issuance of such rights or warrants  been made upon the basis
          of  delivery of only the number of Shares (or  securities  convertible
          into its common stock actually delivered).

                                       3
<PAGE>


     (c)  In case VerticalBuyer shall hereafter distribute to the holders of its
          common stock evidences of its  indebtedness or assets  (excluding cash
          dividends or distributions  and dividends or distributions referred to
          in Subsection (a) above) or subscription rights or warrants (excluding
          those referred to in Subsection (b) above), then in each such case the
          Exercise Price in effect thereafter shall be determined by multiplying
          the number of shares then  comprising  an Shares by the product of the
          Exercise  Price in effect  immediately  prior thereto  multiplied by a
          fraction,  the  numerator of which shall be the total number of Shares
          outstanding  multiplied by the current  market price of the Shares (as
          defined in  Subsection  (e)  below),  less the fair  market  value (as
          determined  by  VerticalBuyer's  Board of  Directors) of the assets or
          evidences  of  indebtedness  so  distributed  or  of  such  rights  or
          warrants,  and the  denominator  of which shall be the total number of
          Shares  outstanding  multiplied by such current market price per share
          of its  common  stock.  Such  adjustment  shall  be made  successively
          whenever such a record date is fixed.  Such  adjustment  shall be made
          whenever  any such  distribution  is made and shall  become  effective
          immediately   after  the  record   date  for  the   determination   of
          shareholders entitled to receive such distribution.

     (d)  Whenever the Exercise  Price  payable upon  exercise of the Warrant is
          adjusted  pursuant to Subsections (a), (b) or (c) above, the number of
          Shares  purchasable upon exercise of the Warrant shall  simultaneously
          be adjusted by  multiplying  the number of Shares  initially  issuable
          upon  exercise of the Warrant by the  Exercise  Price in effect on the
          date hereof and  dividing  the  product so  obtained  by the  Exercise
          Price, as adjusted.

     (e)  For the purpose of any computation under Subsections (b) or (c) above,
          the  current  market  price per share of its common  stock at any date
          shall be deemed to be the average of the daily  closing  prices for 20
          consecutive business days before such date. The closing price for each
          day  shall be the last  sale  price  regular  way or,  in case no such
          reported  sale  takes  place  on such  day,  the  average  of the last
          reported  bid and asked  prices  regular  way,  in either  case on the
          principal  national  securities  exchange on which its common stock is
          admitted to trading or listed, or if not listed or admitted to trading
          on such exchange,  the average of the highest  reported bid and lowest
          reported  asked  prices as  reported  by  NASDAQ,  or if not listed or
          admitted to trading on such market, than the Over the Counter Bulletin
          Board  ("OTCBB")  or other  similar  organization  if the  OTCBB is no
          longer reporting such  information,  or if not so available,  the fair
          market price as determined by the Board of Directors.

     (f)  All  calculations  under this  Section 8 shall be made to the  nearest
          cent or to the nearest  one-hundredth  of a share, as the case may be.
          Anything  in  this   Section  8  to  the   contrary   notwithstanding,
          VerticalBuyer  shall be entitled,  but shall not be required,  to make
          such changes in the Exercise  Price,  in addition to those required by
          this Section 8, as it shall determine,  in its sole discretion,  to be
          advisable in order that any dividend or distribution in Shares, or any
          subdivision,  reclassification  or  combination  of its common  stock,
          hereafter made by VerticalBuyer shall not result in any Federal Income
          tax  liability  to the  holders  of its  common  stock  or  securities
          convertible into its common stock.

     (g)  Whenever  the  Exercise  Price  is  adjusted,   as  herein   provided,
          VerticalBuyer  shall  promptly,  but no later  than 10 days  after any
          request for such an adjustment by CSPI,  cause a notice  setting forth
          the adjusted  Exercise  Price and adjusted  number of Shares  issuable
          upon exercise of the Warrant and, if requested, information describing
          the  transactions  giving  rise to such  adjustments,  to be mailed to
          CSPI,  at the  address set forth  herein,  and shall cause a certified
          copy thereof to be mailed to its transfer agent, if any. VerticalBuyer
          may retain a firm of independent certified public accountants selected
          by its  board  of  directors  (which  may be the  regular  accountants
          employed by  VerticalBuyer)  to make any computation  required by this
          Section 8, and a  certificate  signed by such firm shall be conclusive
          evidence of the correctness of such adjustment.

                                       4
<PAGE>

     (h)  In the event  that at any  time,  as a result  of an  adjustment  made
          pursuant  to  Subsection  (a)  above,  CSPI  thereafter  shall  become
          entitled to receive any shares of VerticalBuyer, other than its common
          stock,  thereafter the number of such other shares so receivable  upon
          exercise of the Warrant  shall be subject to  adjustment  from time to
          time in a manner and on terms as nearly  equivalent as  practicable to
          the  provisions   with  respect  to  its  common  stock  contained  in
          Subsections (a) to (g), inclusive above.

8.       APPLICABLE LAW

     The Warrant  shall be governed  by and in  accordance  with the laws of the
     State of  Massachusetts  applied to  contracts  made and before  within the
     State of Massachusetts.

     IN WITNESS  WHEREOF,  VerticalBuyer,  Inc.,  has  caused the  Warrant to be
signed by its duly authorized  officer under its corporate seal, and the Warrant
to be dated the date first above written.



         VERTICALBUYER, INC.               CSP INC.

         By:                               By:
            ---------------------              ------------------------------
             Tim Rose, President               Alexander Lupinetti, President



<PAGE>


                                  TRANSFER FORM


                (To be signed only upon transfer of the Warrant)



     For value received,  the undersigned hereby sells,  assigns,  and transfers
unto -------------------------------- the right to purchase Shares of the Common
Stock of VerticalBuyer,  Inc., in the numbers set forth below represented by the
foregoing   Warrant  to  the  extent  of   ------------   shares  and   appoints
- ---------------------  as  attorney-in-fact to transfer such rights on the books
of VerticalBuyer, Inc., with full power of substitution in the premises.


Dated:

Name:

Signature:

Address:




In the presence of:








<PAGE>

                                  PURCHASE FORM


                   (To be signed only upon exercise of option)


     THE  UNDERSIGNED,  the holder of the  foregoing  Warrant  (the  "Warrant"),
hereby  irrevocably  elects to exercise the purchase  rights  represented by the
Warrant for, and to purchase  thereunder, ---------- shares of the common stock,
$.001 par value ("Shares") of VerticalBuyer,  Inc.,  exercisable for a period of
one year after the date of an effective  registration  statement relating to the
Shares  underlying  the Warrant makes  payment of  $----------  therefor,  and
requests that the  certificates  for the Shares be issued in the name(s) of, and
delivered as follows:



         Name(s)

         Address:





         Dated:






<PAGE>





                                CLASS "D" WARRANT


     THIS WARRANT CERTIFIES THAT -----------------------------------------------
("Holder") is entitled to purchase from  VERTICALBUYER,  INC., 40 Linnell Circle
Billerica, MA 01821, a Delaware corporation, ("VerticalBuyer"), at the price and
during the period as hereinafter specified, up to ------------------------------
shares (the "Shares") of VerticalBuyer  common stock, $.001 par value per share.
References to "Holder" in this apply to the Holder and, as  appropriate,  to any
transferee, if any, of the Warrants.

1.   EXERCISE

     Price and Period.  The rights  represented by this warrant (the  "Warrant")
     shall be exercisable for a period of two (2) years (the "Exercise  Period")
     beginning on the effective  date (the  "Effective  Date") of a registration
     statement covering the Shares (the "Registration Statement") filed with the
     Securities and Exchange  Commission  ("SEC"), at an exercise price of $1.00
     per Share, subject to adjustment in accordance with paragraph 7 of hereof.

2.   EXERCISE PROCEDURE

     The Warrant may be exercised at any time within the period above specified,
     in whole or in part, by

     (i)  the surrender of the Warrant,  with the purchase  form (the  "Purchase
          Form") at the end hereof properly executed, at the principal executive
          office  of  VerticalBuyer,  at  the  office  of  Olde  Monmouth  Stock
          Transfer,  Inc., 77 Memorial Parkway (Suite 101),  Atlantic Highlands,
          New Jersey 07716 (the "Warrant Agent") (or such other office or agency
          as  VerticalBuyer  may  designate  by notice in writing to CSPI at the
          address of CSPI appearing on its books); and

     (ii) payment to  VerticalBuyer of the Exercise Price then in effect for the
          number  of  Shares  specified  in  the  Purchase  Form  together  with
          applicable stock transfer taxes, if any; and

          The  Warrant  shall be deemed to have been  exercised,  in whole or in
          part to the  extent  specified,  immediately  prior  to the  close  of
          business on the date it is surrendered and payment is made in pursuant
          to this  paragraph,  and the  person or persons in whose name or names
          the certificates for Shares shall be issuable upon such exercise shall
          become the holders as of that date. The certificates for the Shares so
          purchased shall be delivered to the holder(s) within a reasonable time
          after the Warrant shall have been exercised.

3.   TRANSFER

     The Warrant is issued under  Regulation D to the United  States  Securities
     Act of 1933,  as amended  (the "1933 Act"),  and shall not be  transferred,
     sold,   assigned,   or   hypothecated   except  pursuant  to  an  effective
     registration  statement under the 1933 Act or an exemption  therefrom.  Any
     such assignment shall be effected by CSPI by

     (i)  executing the form of assignment at the end hereof and

     (ii) surrendering  the Warrant for  cancellation at the office or agency of
          VerticalBuyer referred to in paragraph 2 hereof,

     whereupon  VerticalBuyer  shall  issue,  in the name(s)  specified  by CSPI
     ("Transferee(s)")  and,  which may include CSPI,  new Warrant of like tenor
     representing in the aggregate  rights to purchase the same number of Shares
     as are purchasable hereunder.

4.   UNDERLYING SHARES OF COMMON STOCK

     VerticalBuyer covenants and agrees that all Shares which may be issued upon
     exercise of the Warrants will,  upon issuance,  be duly and validly issued,
     fully paid and  nonassessable.  VerticalBuyer  further covenants and agrees
     that  during  the  periods  within  which  the  Warrant  may be  exercised,
     VerticalBuyer  will at all times have  authorized and reserved a sufficient
     number of Shares to provide for the exercise of the Warrant.

5.   NO ENTITLEMENT

     The Warrant shall not entitle CSPI to any voting, dividend, or other rights
     as a stockholder of VerticalBuyer.

6.   REGISTRATION STATEMENT AND INDEMNIFICATION

     VerticalBuyer will perform and carry out its obligations under that certain
     Registration  Rights  Agreement by and between  VerticalBuyer  and CSPI, of
     even date herewith

7.   ADJUSTMENT

     The  Exercise  Price  in  effect  at any time  and the  number  and kind of
     securities purchasable upon the exercise of the Warrant shall be subject to
     adjustment  from  time to time  upon the  happening  of  certain  events as
     follows:

     (a)  In  case  VerticalBuyer  shall  (i)  declare  a  dividend  or  make  a
          distribution on its outstanding  Shares,  (ii) subdivide or reclassify
          its  outstanding  shares of into a greater number of shares,  or (iii)
          combine or reclassify its outstanding  shares into a smaller number of
          shares,  the  Exercise  Price in effect at the time of the record date
          for such dividend or  distribution  or of the  effective  date of such
          subdivision, combination or reclassification shall be adjusted so that
          it shall equal the price  determined by multiplying the Exercise Price
          by a fraction,  the denominator of which shall be the number of shares
          outstanding  after giving effect to such action,  and the numerator of
          which shall be the number of shares  outstanding  immediately prior to
          such action.

     (b)  In case  VerticalBuyer  shall fix a record  date for the  issuance  of
          rights or warrants to all holders of its common stock  entitling  them
          to subscribe for or purchase  Shares (or securities  convertible  into
          common  stock) at a price  (the  "Subscription  Price")  (or  having a
          conversion  price per share) less than the current market price of the
          Shares  (as  defined  in  Subsection  (e)  below) on the  record  date
          mentioned below, the Exercise Price shall be adjusted so that the same
          shall equal the price  determined by multiplying  the number of shares
          then comprising underlying Shares by the product of the Exercise Price
          in effect immediately prior to the date of such issuance multiplied by
          a fraction,  the  numerator of which shall be the sum of the number of
          Shares  outstanding on the record date mentioned  below and the number
          of additional  Shares which the aggregate  offering price of the total
          number of Shares so offered (or the aggregate  conversion price of the
          convertible  securities  so offered)  would  purchase at such  current
          market price per share of its common  stock,  and the  denominator  of
          which  shall be the sum of the  number of Shares  outstanding  on such
          record  date  and  the  number  of  additional   Shares   offered  for
          subscription or purchase (or into which the convertible  securities so
          offered are  convertible).  Such adjustment shall be made successively
          whenever such rights or warrants are issued and shall become effective
          immediately   after  the  record   date  for  the   determination   of
          shareholders  entitled to receive such rights or warrants;  and to the
          extent that Shares are not delivered (or securities  convertible  into
          its  common  stock are not  delivered)  after the  expiration  of such
          rights or  warrants  the  Exercise  Price shall be  readjusted  to the
          Exercise Price which would then be in effect had the adjustments  made
          upon the issuance of such rights or warrants  been made upon the basis
          of  delivery of only the number of Shares (or  securities  convertible
          into its common stock actually delivered).

     (c)  In case VerticalBuyer shall hereafter distribute to the holders of its
          common stock evidences of its  indebtedness or assets  (excluding cash
          dividends or distributions  and dividends or distributions referred to
          in Subsection (a) above) or subscription rights or warrants (excluding
          those referred to in Subsection (b) above), then in each such case the
          Exercise Price in effect thereafter shall be determined by multiplying
          the number of shares then  comprising  an Shares by the product of the
          Exercise  Price in effect  immediately  prior thereto  multiplied by a
          fraction,  the  numerator of which shall be the total number of Shares
          outstanding  multiplied by the current  market price of the Shares (as
          defined in  Subsection  (e)  below),  less the fair  market  value (as
          determined  by  VerticalBuyer's  Board of  Directors) of the assets or
          evidences  of  indebtedness  so  distributed  or  of  such  rights  or
          warrants,  and the  denominator  of which shall be the total number of
          Shares  outstanding  multiplied by such current market price per share
          of its  common  stock.  Such  adjustment  shall  be made  successively
          whenever such a record date is fixed.  Such  adjustment  shall be made
          whenever  any such  distribution  is made and shall  become  effective
          immediately   after  the  record   date  for  the   determination   of
          shareholders entitled to receive such distribution.

     (d)  Whenever the Exercise  Price  payable upon  exercise of the Warrant is
          adjusted  pursuant to Subsections (a), (b) or (c) above, the number of
          Shares  purchasable upon exercise of the Warrant shall  simultaneously
          be adjusted by  multiplying  the number of Shares  initially  issuable
          upon  exercise of the Warrant by the  Exercise  Price in effect on the
          date hereof and  dividing  the  product so  obtained  by the  Exercise
          Price, as adjusted.

     (e)  For the purpose of any computation under Subsections (b) or (c) above,
          the  current  market  price per share of its common  stock at any date
          shall be deemed to be the average of the daily  closing  prices for 20
          consecutive business days before such date. The closing price for each
          day  shall be the last  sale  price  regular  way or,  in case no such
          reported  sale  takes  place  on such  day,  the  average  of the last
          reported  bid and asked  prices  regular  way,  in either  case on the
          principal  national  securities  exchange on which its common stock is
          admitted to trading or listed, or if not listed or admitted to trading
          on such exchange,  the average of the highest  reported bid and lowest
          reported  asked  prices as  reported  by  NASDAQ,  or if not listed or
          admitted to trading on such market, than the Over the Counter Bulletin
          Board  ("OTCBB")  or other  similar  organization  if the  OTCBB is no
          longer reporting such  information,  or if not so available,  the fair
          market price as determined by the Board of Directors.

     (f)  All  calculations  under this  Section 8 shall be made to the  nearest
          cent or to the nearest  one-hundredth  of a share, as the case may be.
          Anything  in  this   Section  8  to  the   contrary   notwithstanding,
          VerticalBuyer  shall be entitled,  but shall not be required,  to make
          such changes in the Exercise  Price,  in addition to those required by
          this Section 8, as it shall determine,  in its sole discretion,  to be
          advisable in order that any dividend or distribution in Shares, or any
          subdivision,  reclassification  or  combination  of its common  stock,
          hereafter made by VerticalBuyer shall not result in any Federal Income
          tax  liability  to the  holders  of its  common  stock  or  securities
          convertible into its common stock.

     (g)  Whenever  the  Exercise  Price  is  adjusted,   as  herein   provided,
          VerticalBuyer  shall  promptly,  but no later  than 10 days  after any
          request for such an adjustment by CSPI,  cause a notice  setting forth
          the adjusted  Exercise  Price and adjusted  number of Shares  issuable
          upon exercise of the Warrant and, if requested, information describing
          the  transactions  giving  rise to such  adjustments,  to be mailed to
          CSPI,  at the  address set forth  herein,  and shall cause a certified
          copy thereof to be mailed to its transfer agent, if any. VerticalBuyer
          may retain a firm of independent certified public accountants selected
          by its  board  of  directors  (which  may be the  regular  accountants
          employed by  VerticalBuyer)  to make any computation  required by this
          Section 8, and a  certificate  signed by such firm shall be conclusive
          evidence of the correctness of such adjustment.

     (h)  In the event  that at any  time,  as a result  of an  adjustment  made
          pursuant  to  Subsection  (a)  above,  CSPI  thereafter  shall  become
          entitled to receive any shares of VerticalBuyer, other than its common
          stock,  thereafter the number of such other shares so receivable  upon
          exercise of the Warrant  shall be subject to  adjustment  from time to
          time in a manner and on terms as nearly  equivalent as  practicable to
          the  provisions   with  respect  to  its  common  stock  contained  in
          Subsections (a) to (g), inclusive above.

8.       APPLICABLE LAW

     The Warrant  shall be governed  by and in  accordance  with the laws of the
     State of  Massachusetts  applied to  contracts  made and before  within the
     State of Massachusetts.

     IN WITNESS  WHEREOF,  VerticalBuyer,  Inc.,  has  caused the  Warrant to be
signed by its duly authorized  officer under its corporate seal, and the Warrant
to be dated the date first above written.





         VERTICALBUYER, INC.


         ---------------------                 ------------------------

         Tim Rose, President
















                                  TRANSFER FORM


                (To be signed only upon transfer of the Warrant)



     For value received,  the undersigned hereby sells,  assigns,  and transfers
unto  --------------------  the right to purchase  Shares of the Common Stock of
VerticalBuyer, Inc., in the numbers set forth below represented by the foregoing
Warrant    to   the    extent    of   ------------    shares    and    appoints
- ---------------------  as  attorney-in-fact  to transfer such rights on the
books of VerticalBuyer, Inc., with full power of substitution in the premises.


Dated:

Name:

Signature:

Address:




In the presence of:






















                                  PURCHASE FORM


                   (To be signed only upon exercise of option)



     THE  UNDERSIGNED,  the holder of the  foregoing  Warrant  (the  "Warrant"),
hereby  irrevocably  elects to exercise the purchase  rights  represented by the
Warrant for, and to purchase  thereunder, ---------- shares of the common stock,
$.001 par value ("Shares") of VerticalBuyer,  Inc.,  exercisable for a period of
one year after the date of an effective  registration  statement relating to the
Shares  underlying  the Warrant makes  payment of  $----------  therefor,  and
requests that the  certificates  for the Shares be issued in the name(s) of, and
delivered as follows:



         Name(s)

         Address:





         Dated:












                                 Roger L. Fidler
                                 Attorney at Law
                                163 South Street
                          Hackensack, New Jersey 07601


                                        March 28, 2000

Securities and Exchange Commission
Washington, D.C.

                             Re: VerticalBuyer, Inc.


To Whom It May Concern:

     VerticalBuyer,   Inc.  (the  "Company")  is  a  corporation  duly
incorporated  and validly  existing and in good  standing  under the laws of the
State of Delaware. The Company has full corporate powers to own its property and
conduct its business, as such business is described in the prospectus which is a
part of a  registration  statement on Form SB-2.  The Company is qualified to do
business as a foreign  corporation  in good  standing in every  jurisdiction  in
which the  ownership  of  property  and the conduct of  business  requires  such
qualification.

     This  opinion  is  given  in  connection  with  the  registration  with the
Securities  and  Exchange   Commission  of  5,xxx,xxx  shares  of  common  stock
("Shares"),  2,000,000  to  be  sold  by  selling  stockholders,  and  3,xxx,xxx
underlying common stock purchase warrants ("Warrants").

     I have acted as counsel to the company in connection  with the  preparation
of the  Registration  Statement on Form SB-2,  pursuant to which the Units (each
consisting of one Share and Five Warrants),  and Shares  underlying the Warrants
are being registered and, in so acting, I have examined the originals and copies
of the corporate  instruments,  certificates  and other documents of the Company
and  interviewed  representatives  of the  Company  to the  extent I  deemed  it
necessary  in order to form the basis for the opinion  hereafter  set forth.  In
such  examination,  I  have  assumed  the  genuineness  of  all  signatures  and
authenticity  of all  documents  submitted  to me as  certified  or  photostatic
copies. As to all questions of fact material to this opinion which have not been
independently  established,  I have relied upon  statements or  certificates  of
officers or representatives of the Company.

     All of the  2,000,000  Shares to be sold by  selling  stockholders  and the
3,xxx,xxx  Shares  underlying  the Warrants  which are being  registered are now
authorized  but  unissued  Shares.  Issuance of the Shares and Warrants has been
authorized by the board of directors of the Company

     Based upon the foregoing, I am of the opinion that the 2,000,000 Shares, to
be  sold by  selling  stockholders  and  the  3,xxx,xxx  Shares  underlying  the
Warrants, when exercised,  will be legally issued, fully paid and non-assessable
and there will be no personal liability to investors and holders of the Warrants
who exercise them.



                                      /s/Roger L. Fidler
                                      ---------------------
                                      Roger L. Fidler






                  SECURITIES PURCHASE AND FACILITIES AGREEMENT


                                 by and between


                                    CSP INC.


                                       and


                               VERTICALBUYER, INC.



<PAGE>

                                    AGREEMENT

     AGREEMENT (this "Agreement" is dated as of March 2, 2000 by and between CSP
Inc., a Massachusetts  corporation ("CSPI", and VerticalBuyer,  Inc., a Delaware
corporation ("VerticalBuyer").

     WHEREAS,  CSPI is a  publicly-traded  company the common  stock of which is
traded on the National  Market System of the National  Association of Securities
Dealers Automatic Quotation Market ("NASDAQNM") and

     WHEREAS, business and financial information concerning CSPI is available on
the Electronic Data Gathering,  Analysis and Retrieval System (known as "EDGAR")
maintained by the United States  Securities and Exchange  Commission  ("SEC") on
its World Wide Web site, www.sec.gov; and

     WHEREAS,  VerticalBuyer  is a  private  Delaware  corporation  which is the
holding  company and parent of its  wholly-owned  subsidiary,  a United  Kingdom
company, Lightseek, Limited ("Lightseek"); and

     WHEREAS,  CSPI desires to purchase an aggregate of 5,000,000  shares of the
common  stock,  $.001 par value each) of  VerticalBuyer  ("VerticalBuyer  Common
Stock"), at $1.00 per share, representing, after the purchase, 25% of the issued
and outstanding shares of VerticalBuyer  Common Stock and VerticalBuyer  desires
to sell to CSPI  5,000,000  shares of  VerticalBuyer  Common  Stock,  ("Shares")
subject to the terms and conditions hereinafter set forth; and

     WHEREAS,  CSPI desires to assist in the  establishment  of  VerticalBuyer's
United States office through provision of office space,  computer facilities and
related  personnel  and services and by the provision of members of its board of
directors on the board of directors and committees of the of  VerticalBuyer  and
VerticalBuyer desire the assistance of CSPI pursuant to the terms and conditions
hereafter set forth; and

     WHEREAS, CSPI and VerticalBuyer are executing and delivering this Agreement
in reliance  upon the exemption  from  securities  registration  afforded by the
provisions of Regulation D ("Regulation D"), as promulgated by the SEC under the
1933 act of 1933, as amended (the "1933 Act"); and

     WHEREAS,   contemporaneously  with  the  execution  and  delivery  of  this
Agreement,  the Parties are  executing  and  delivering  a  registration  rights
agreement  pursuant  to  which  VerticalBuyer  has  agreed  to  provide  certain
registration rights under the 1933 act and the rules and regulations promulgated
thereunder,  a voting agreement among the majority stockholders of VerticalBuyer
and CSPI and three warrants, all in the forms attached hereto as Exhibit 2.02.

     NOW THEREFORE, in consideration of the premises and the covenants set forth
herein, the parties hereto (the "Parties" and,  individually,  a "Party") hereby
agree as follows:

                                       2
<PAGE>

                                    ARTICLE 1
              PURCHASE AND SALE OF SECURITIES - FACILITIES PROVIDED

1.01 Purchase and Sale.

     (a)  Subject to the terms and  conditions  of this  Agreement,  CSPI hereby
          purchases and VerticalBuyer  hereby sells to CSPI 2,000,000 Shares and
          three redeemable  common stock purchase warrants (the "Warrants") each
          warrant containing the right to purchase 1,000,000 Shares at $1.00 for
          a period  of two  years  from the  date of an  effective  registration
          statement  relating to the  underlying  Shares.  The three  classes of
          Warrant are  redeemable  upon thirty days' written  notice as follows:
          Class "A", upon the effectiveness of a registration statement relating
          to the underlying shares of VerticalBuyer  Common Stock; Class "B", in
          the event the closing  price of the Shares on  VerticalBuyer's  public
          trading  market  exceeds $2.00 for a period of twenty (20)  continuous
          trading  days;  and Class "C", in the event the  closing  price of the
          Shares on VerticalBuyer's trading market exceeds $3.00 for a period of
          twenty (20) continuous trading days. In the event the closing price of
          the Shares on VerticalBuyer's public trading market exceeds $3.00, the
          time  period for  redemption  of the Class "B" and Class "C"  Warrants
          will run concurrently.

     (b)  In addition,  VerticalBuyer agrees to issue and sell 75,000 additional
          Class "B" Warrants to holders of existing CSPI options whose names and
          addresses are listed on Schedule 1.01 at a price of $.01 per Class "B"
          Warrant.  These  Warrants  will be included  in the same  registration
          statement to be filed with the SEC relating to the Shares purchased by
          CSPI and the Shares underlying the Warrants purchased by CSPI.

     (c)  The  number  and  exercise  price of the  Warrants  shall be  adjusted
          appropriately  in the event of an  acquisition,  stock split,  sale of
          stock at prices  less than the  market  price of the Shares or similar
          transaction  pursuant to paragraph 7 of the Warrant to be entered into
          simultaneously with this Agreement.

1.02 Purchase  Price.  The  purchase  price  of the  2,000,000  Shares  and  the
     3,000,000 Warrants pursuant to paragraph 1.01 above is $2,000,000.

1.03 Exemption  from  Registration.  Certificates  representing  the  shares  of
     VerticalBuyer  Common Stock issued to CSPI shall bear a restrictive  legend
     setting  forth that the shares  were  issued in a  transaction  exempt from
     registration  under the Securities Act of 1933, as amended (the "1933 Act")
     and may not be transferred unless pursuant to an effectiveness registration
     statement filed with the SEC or an exemption therefrom.

1.04 Registration  Statement.  VerticalBuyer will file a registration  statement
     relating to the Shares issued to CSPI,  the Warrants  issued to CSPI and to
     stockholders of CSPI and the Shares  underlying the Warrants  pursuant to a
     registration  rights agreement (the "Registration  Rights Agreement") to be
     signed by the Parties at or prior to the Closing.

1.05 Facilities  Provision.  CSPI shall provide from the date of the Closing use
     of  office  space  in  its  headquarters  office,  consultation  and  other
     facilities as set forth in a memorandum of understanding attached hereto as
     Exhibit 1.05.

                                       3
<PAGE>

                                   ARTICLE 2
                                    CLOSING

2.01 The Closing.  The  transactions  contemplated  by this  Agreement  shall be
     completed  simultaneously or prior to the execution of this Agreement.  The
     Closing  shall  take  place  at the  offices  of CSPI or at  another  place
     mutually  agreed  upon  by  the  Parties.  The  "Closing"  shall  mean  the
     deliveries to be made by the Parties at the Closing in accordance with this
     Agreement.

2.02 Deliveries by VerticalBuyer. At the Closing, VerticalBuyer shall deliver to
     CSPI Share  certificates,  and the Warrants all duly and properly executed,
     representing  the  Shares  and  Warrants  purchased  by  CSPI  pursuant  to
     paragraph 1.01(a).  If not previously  delivered,  VerticalBuyer shall also
     deliver to CSPI at the Closing the documents specified in Exhibit 2.02.

2.03 Deliveries by CSPI. At the Closing,  CSPI shall deliver a certified or bank
     check in the amount of $2,000,000 to the order of "VerticalBuyer, Inc."

2.04 Further  Assurances.  At or after the  Closing,  each Party shall  prepare,
     execute,  and  deliver,  such  further  instruments  of  conveyance,  sale,
     assignment,  or transfer, and shall take or cause to be taken such other or
     further action, as any Party shall reasonably request of any other Party at
     any time or from time to time in order to consummate,  in any other manner,
     the terms and provisions of this Agreement,  including  opinions of counsel
     for each Party relating to the  representations and warranties set forth in
     this Agreement.

                                    ARTICLE 3
                 REPRESENTATIONS AND WARRANTIES OF VERTICALBUYER

     In this Agreement,  any reference to any event, change, condition or effect
being  "material"  with  respect  to any entity or group of  entities  means any
material event, change,  condition or effect related to the financial condition,
properties,  assets  (including  intangible  assets),   liabilities,   business,
operations or results of operations of such entity or group of entities. In this
Agreement,  any  reference  to a "Material  Adverse  Effect" with respect to any
entity or group of entities means any event, change or effect that is materially
adverse to the financial condition,  properties, assets, liabilities,  business,
operations  or results of  operations  of such entity.  In this  Agreement,  any
reference to a Party's  "knowledge"  means such Party's actual  knowledge  after
reasonable  inquiry of  officers,  directors  and other  employees of such Party
reasonably believed to have knowledge of such matters.  VerticalBuyer represents
and warrants to CSPI as follows:

3.01 Organization,   Standing  and  Power.   VerticalBuyer   and  Lightseek  are
     corporations  duly organized,  validly  existing and in good standing under
     the laws of Delaware and the United  Kingdom,  respectively.  VerticalBuyer
     and Lightseek have the corporate power to own their properties and to carry
     on their  business as now being  conducted  and as proposed to be conducted
     and are duly  qualified  to do  business  and are in good  standing in each
     jurisdiction  in which the failure to be so qualified  and in good standing
     would have a Material  Adverse Effect on  VerticalBuyer or Lightseek as the
     case may be.  VerticalBuyer  has  delivered a true and correct  copy of its
     certificate of incorporation, certificate of amendment, certificate of good
     standing and by-laws or other charter  documents,  as applicable,  to CSPI.
     Neither  VerticalBuyer  nor  Lightseek  is  in  violation  of  any  of  the
     provisions of its  respective  certificate  of  incorporation  or bylaws or
     equivalent  organizational  documents.   VerticalBuyer  has  no  direct  or
     indirect majority-owned subsidiaries other than Lightseek.

                                       4
<PAGE>

3.02 Authority. VerticalBuyer has all requisite corporate power and authority to
     enter into this Agreement and to consummate the  transactions  contemplated
     hereby.  The execution and delivery of this Agreement and the  consummation
     of the  transactions  contemplated  hereby have been duly authorized by all
     necessary corporate action on the part of VerticalBuyer. This Agreement has
     been duly executed and delivered by VerticalBuyer and constitutes the valid
     and binding obligation of VerticalBuyer  enforceable against  VerticalBuyer
     in  accordance  with its  terms,  except  that such  enforceability  may be
     limited  by  bankruptcy,  insolvency,  moratorium  or  other  similar  laws
     affecting or relating to  creditors'  rights  generally,  and is subject to
     general  principles of equity. The execution and delivery of this Agreement
     by  VerticalBuyer  does  not,  and  the  consummation  of the  transactions
     contemplated hereby will not, conflict with, or result in any violation of,
     or default  under (with or without  notice or lapse of time,  or both),  or
     give rise to a right of  termination,  cancellation  or acceleration of any
     material obligation or loss of any material benefit under (i) any provision
     of the certificate of incorporation or bylaws of VerticalBuyer, or (ii) any
     mortgage,  indenture,  lease,  contract or other  agreement or  instrument,
     permit, concession,  franchise,  license, judgment, order, decree, statute,
     law,  ordinance,  rule or regulation  applicable to VerticalBuyer or any of
     its properties or assets. No consent,  approval, order or authorization of,
     or  registration,  declaration  or filing with,  any court,  administrative
     agency or commission  or other  governmental  authority or  instrumentality
     ("Governmental  Entity") is required by or with respect to VerticalBuyer or
     Lightseek in connection  with the execution and delivery of this  Agreement
     or the consummation of the transactions contemplated hereby, except for (i)
     such   consents,   approvals,   orders,   authorizations,    registrations,
     declarations  and  filings  as  may  be  required  under  applicable  state
     securities  laws and the securities laws of any foreign  country,  and (ii)
     such other consents,  authorizations,  filings, approvals and registrations
     which, if not obtained or made, would not have a Material Adverse Effect on
     VerticalBuyer  and/or and would not prevent,  or materially  alter or delay
     any of the transactions contemplated by this Agreement.

3.03 Financial  Statements.  VerticalBuyer  has  delivered to CSPI the financial
     statements  for the fiscal period ended  November 30, 1999 (the  "Financial
     Statements")  of  Lightseek.  The  Financial  Statements  are  complete and
     correct in all  material  respects  and were  prepared in  accordance  with
     generally  accepted  accounting  principles  applicable  to United  Kingdom
     corporations,   applied  on  a  consistent  basis  throughout  the  periods
     indicated and with each other. The Financial Statements  accurately set out
     and describe in all material respects the financial condition and operating
     results as of the dates, and for the periods, indicated therein, subject to
     normal year-end adjustments. VerticalBuyer will maintain and Lightseek will
     continue  to  maintain  a standard  system of  accounting  established  and
     administered in accordance with generally accepted accounting principles.

3.04 Absence  of Certain  Changes.  Since  November  30,  1999,  the date of the
     Financial   Statements,   except  as   otherwise   disclosed   in  writing,
     VerticalBuyer  represents  that Lightseek has conducted its business in the
     ordinary course  consistent with past practice and that  VerticalBuyer  has
     been an inactive company except for the issuance of Shares to the owners of
     Lightseek and Shares and common stock purchase warrants certain consultants
     and that, as to VerticalBuyer  and Lightseek,  there has not occurred:  (i)
     any change, event or condition that has resulted in, or might reasonably be
     expected to result in, a Material  Adverse  Effect;  (ii) any  acquisition,
     sale or transfer of any material asset other than in the ordinary course of
     business and consistent  with past practice;  (iii) any material  change in
     accounting  methods or practices  (including any change in  depreciation or


                                       5
<PAGE>

     amortization  policies or rates);  (iv) any declaration,  setting aside, or
     payment  of a dividend  or other  distribution,  or any direct or  indirect
     redemption,  purchase or other  acquisition  of any shares of capital stock
     except as disclosed to CSPI; (v) any material  contract  entered into other
     than in the ordinary course of business,  and or any material  amendment or
     termination  of,  or  default  under,  any  material  contract;   (vi)  any
     undisclosed material amendment or change to the incorporation  documents or
     bylaws;  (vii) any  increase  in or  modification  of the  compensation  or
     benefits  payable or to become payable to any directors or employees  other
     than in the ordinary  course of business and consistent  with past practice
     or (viii) any negotiation or agreement to do any of the things described in
     the preceding  clauses (i) through (vii) (other than negotiations with CSPI
     and its  representatives  regarding the  transactions  contemplated by this
     Agreement or as otherwise disclosed to CSPI).

3.05 Absence of Undisclosed Liabilities. Neither VerticalBuyer nor Lightseek has
     any  material   obligations  or  liabilities  of  any  nature  (matured  or
     unmatured,  fixed  or  contingent)  other  than  (i)  those  set  forth  or
     adequately provided for in the Financial Statements; (ii) those incurred in
     the  ordinary  course of business  and not  required to be set forth in the
     Financial Statements under generally accepted accounting principles;  (iii)
     those  incurred  in the  ordinary  course of business  since the  Financial
     Statements  and consistent  with past practice;  and (iv) those incurred in
     connection with the execution of this Agreement.

3.06 Litigation.  There is no private or governmental action, suit,  proceeding,
     claim,  arbitration or  investigation  pending before any agency,  court or
     tribunal,  foreign or  domestic,  or, to the  knowledge  of  VerticalBuyer,
     threatened  against  either  VerticalBuyer  or  Lightseek  or any of  their
     properties  or any of their  respective  officers  or  directors  (in their
     capacities  as  such)  that,  individually  or  in  the  aggregate,   could
     reasonably be expected to have a Material  Adverse Effect on  VerticalBuyer
     or Lightseek  except as has been previously  disclosed to CSPI. There is no
     judgment,  decree or order against  VerticalBuyer or Lightseek,  or, to the
     knowledge  of  VerticalBuyer,  any of its  directors  or officers (in their
     capacities as such),  that could prevent,  enjoin,  or materially  alter or
     delay any of the transactions contemplated by this Agreement, or that could
     reasonably be expected to have a Material Adverse Effect on VerticalBuyer.

3.07 Restrictions  on  Business  Activities.  There is no  agreement,  judgment,
     injunction, order or decree against either VerticalBuyer or Lightseek which
     has or could  reasonably be expected to have the effect of  prohibiting  or
     materially   impairing  any  current  or  future  business  practice,   any
     acquisition  of property or the conduct of business as currently  conducted
     or as proposed to be conducted.

3.08 Governmental Authorization.  VerticalBuyer and Lightseek have obtained each
     federal,  state, county, local or foreign  governmental  consent,  license,
     permit, grant, or other authorization of a Governmental Entity (i) pursuant
     to which either of them currently  operates or holds any interest in any of
     its  properties  or (ii) that is required for their  operation,  and all of
     such authorizations are in full force and effect,  except where the failure
     to obtain or have any such authorizations  could not reasonably be expected
     to have a Material Adverse Effect on either VerticalBuyer or Lightseek.

3.09 Title to Property.  Lightseek has good and  marketable  title to all of its
     respective  properties,  interests  in  properties  and  assets,  real  and
     personal,  reflected  in the  Financial  Statements  or acquired  after the
     Financial Statements. The property and equipment of Lightseek that are used
     in the operations of its  businesses  are in all material  respects in good
     operating condition and repair, ordinary wear and tear excepted.

                                       6
<PAGE>

3.10 Intellectual Property.

     (a)  Lightseek  owns  or  is  licensed  or  otherwise   possesses   legally
          enforceable rights to use all trademarks,  trade names, service marks,
          copyrights,  domain registrations and any applications  therefor,  and
          tangible   or   intangible   proprietary   information   or   material
          ("Intellectual  Property")  that are used in the business of Lightseek
          as currently conducted,  except to the extent that the failure to have
          such rights has not had and would not reasonably be expected to have a
          Material Adverse Effect on Lightseek.

     (b)  Lightseek has not been sued in any suit,  action or proceeding and has
          not  brought  any  action,  suit or  proceeding  for  infringement  of
          Intellectual  Property or breach of any license or agreement involving
          Intellectual  Property  against  any third  party.  The conduct of its
          business does not infringe any  trademark,  service  mark,  copyright,
          trade secret or other proprietary right of any third party, where such
          infringement would have a Material Adverse Effect on Lightseek.

3.11 Interested  Party  Transactions.  Neither  VerticalBuyer  nor  Lightseek is
     indebted to any  director,  officer,  employee or agent (except for amounts
     due as  normal  salaries  and  bonuses  and in  reimbursement  of  ordinary
     expenses),  and no such  person  is  indebted  to either  VerticalBuyer  or
     Lightseek except as disclosed in the Financial Statements.

3.12 Insurance. Neither VerticalBuyer nor Lightseek currently has insurance.

3.13 Compliance  With Laws. To its knowledge,  VerticalBuyer  and Lightseek have
     complied  with,  are not in violation of, and have not received any notices
     of violation with respect to, any federal, state, local or foreign statute,
     law or  regulation  with respect to the conduct of their  business,  or the
     ownership  or  operation  of their  respective  business,  except  for such
     violations  or  failures to comply as could not be  reasonably  expected to
     have a Material Adverse Effect.

3.14 Minute  Books.  VerticalBuyer  will make  available  to CSPI a complete and
     accurate  summary of all meetings of directors and  shareholders or actions
     by written consent since the time of  incorporation of  VerticalBuyer,  and
     reflect all  transactions  referred to in such  minutes  accurately  in all
     material respects.

3.15 Complete Copies of Materials. VerticalBuyer has delivered or made available
     true and complete  copies of each  agreement not in the ordinary  course of
     business to which VerticalBuyer or Lightseek is a party.

3.16 Brokers' and Finders'  Fees.  VerticalBuyer  has not incurred,  nor will it
     incur, directly or indirectly, any liability for brokerage or finders' fees
     or agents'  commissions or investment  bankers' fees or any similar charges
     in connection  with this Agreement or any transaction  contemplated  hereby
     except as set forth in Exhibit 3.16.

3.17 Board  Approval.  This Agreement has been adopted by the Board of Directors
     of VerticalBuyer in resolutions which are in full force and effect.



                                       7
<PAGE>

3.18 Representations Complete. None of the representations or warranties made by
     VerticalBuyer,   or  documents  furnished  by  VerticalBuyer  or  Lightseek
     pursuant to this  Agreement  or any  written  statement  furnished  to CSPI
     pursuant hereto or in connection with the transactions contemplated hereby,
     when all such  documents are read together in their  entirety,  contains or
     will  contain at the Closing any untrue  statement of a material  fact,  or
     omits or will omit at the Closing to state any material  fact  necessary in
     order to make the statements  contained herein or therein,  in the light of
     the circumstances under which made, not misleading; provided, however, that
     for  purposes of this  representation,  any document  attached  hereto as a
     "Superseding  Document" (even if not actually  physically  attached hereto)
     that  provides  information  inconsistent  with or in addition to any other
     written  statement  furnished to CSPI in  connection  with the  transaction
     contemplated  hereby, shall be deemed to supersede any other prior document
     or written statement furnished to CSPI with respect to such inconsistent or
     additional information.

3.19 Authorization.  All  acts  and  conditions  required  by law on the part of
     VerticalBuyer  to authorize the execution and delivery of this Agreement by
     VerticalBuyer and the transactions  contemplated herein and the performance
     of all obligations of VerticalBuyer  hereunder have been duly performed and
     obtained,  and this  Agreement  constitutes  a valid  and  legally  binding
     obligation of  VerticalBuyer,  enforceable  in  accordance  with its terms,
     subject,  as to the  enforcement  of remedies,  to  applicable  bankruptcy,
     insolvency, moratorium, reorganization or similar laws affecting creditors'
     rights generally, to general equitable principles and to limitations on the
     enforceability of indemnification provisions as applied to certain types of
     claims arising hereafter, if any, under the federal securities laws.

3.20 Compliance With Other Instruments. The execution,  delivery and performance
     of this Agreement and the  consummation  of the  transactions  contemplated
     hereby will not result in any  violation or default of any provision of any
     instrument,   judgment,   order,   writ,   decree  or   contract  to  which
     VerticalBuyer  or Lightseek is a party or by which it is bound,  or require
     any consent under or be in conflict with or constitute, with or without the
     passage of time and giving of notice,  either a violation or default  under
     any such provision.

3.21 Governmental Consents. No consent,  approval, order or authorization of, or
     registration,  qualification,  designation, declaration or filing with, any
     federal,  regional,  state or local  governmental  authority  of the United
     States on the part of  VerticalBuyer or Lightseek is required in connection
     with the consummation of the  transactions  contemplated by this Agreement,
     except for filings,  if any,  required  pursuant to applicable  federal and
     state  securities  laws,  which  filings  will be made within the  required
     statutory period.

3.22 Litigation.  There is no action, suit, proceeding, or investigation pending
     or,  to  its  knowledge,  currently  threatened  against  VerticalBuyer  or
     Lightseek  which  questions the validity of this  Agreement or the right of
     VerticalBuyer   to  enter  into  this   Agreement  or  to  consummate   the
     transactions contemplated hereby.

3.23 Authorized Shares of Common Stock and Warrants.  The Shares and Warrants to
     be  transferred  to CSPI under this Agreement will be free and clear of any
     lien, pledge,  security interest or other encumbrance and, upon delivery of
     the  securities  at the  Closing as  provided  for in this  Agreement,  and
     assuming  CSPI is  acquiring  the  Shares  and  Warrants  in good faith and
     without notice of any adverse claim,  CSPI will acquire good title thereto,
     free and clear of any lien, pledge, security interest or encumbrance (other
     than restrictions on transfer arising under applicable securities laws).

                                       8
<PAGE>

3.24 Disclosure.  VerticalBuyer has fully provided CSPI with all the information
     in its  possession  that  CSPI has  requested  in  determining  whether  to
     purchase the securities offered by VerticalBuyer. Neither Article 3 of this
     Agreement nor any document  attached to this Agreement nor any  certificate
     delivered  pursuant  hereto  that,  in any such  case,  has been or will be
     provided by or on behalf of VerticalBuyer  contains any untrue statement of
     a material  fact or omits to state a material  fact  necessary  to make the
     statements   made  herein  or  therein  not  misleading  in  light  of  the
     circumstances under which they were made.

3.25 Capital  Structure.   The  capitalization  of  VerticalBuyer   consists  of
     50,000,000  shares  of  common  stock,  par  value  $.001  each,  of  which
     15,000,000  shares are issued and outstanding as of the date of closing and
     5,000,000 shares of "blank check" preferred stock,  $.001 par value each of
     which  none are  issued.  There  are no  other  outstanding  securities  of
     VerticalBuyer  and no  outstanding  commitments  to issue  any  securities,
     except  WE MUST  FILL  THIS  NUMBER  IN  options  and  warrants  issued  to
     employees,  directors and consultants the terms and conditions of which are
     set forth in Exhibit 3.25.

3.26 Taxes.  VerticalBuyer  and  Lightseek  have  timely  filed all tax  returns
     required  to be filed and has paid all taxes shown  thereon to be due.  The
     Financial Statements (i) fully accrue all actual and contingent liabilities
     for taxes with respect to all periods through December 31, 1999 and neither
     VerticalBuyer  nor its  subsidiary  has or will incur any tax  liability in
     excess of the amount reflected on the Financial  Statements with respect to
     such  periods,  and (ii)  properly  accrue  in  accordance  with  generally
     accepted  accounting  principles  all  liabilities  for taxes payable after
     December 31, 1999 with respect to all  transactions and events occurring on
     or prior to such date.  No material tax liability  since  December 31, 1999
     has been  incurred by  VerticalBuyer  or its  subsidiary  other than in the
     ordinary  course of business  and adequate  provision  has been made in the
     Financial  Statements  for all taxes  since  that date in  accordance  with
     generally accepted accounting principles.

3.27 Employee Matters.  To its best knowledge,  VerticalBuyer and its subsidiary
     are in  compliance in all material  respects with all currently  applicable
     laws and regulations respecting  employment,  discrimination in employment,
     terms and conditions of employment,  wages,  hours and occupational  safety
     and  health and  employment9  practices,  and is not  engaged in any unfair
     labor practice. To its best knowledge,  there are no pending claims against
     VerticalBuyer  under any  workers  compensation  plan or policy or for long
     term disability.  All employee benefit plans, stock option plans (including
     the terms and  conditions of any issued and  outstanding  options) or other
     employee stock  issuance plans or rights and all employment  agreements are
     listed on Exhibit 3.27.

3.28 Delivery of Documents.  VerticalBuyer has delivered or will deliver to CSPI
     at or prior to the Closing all  documents  required to be  delivered  under
     this Agreement.

                                       9
<PAGE>

                                    ARTICLE 4
                     REPRESENTATIONS AND WARRANTIES OF CSPI

         CSPI represents and warrants to VerticalBuyer as follows:

4.01 Organization,  Standing and Power.  CSPI is a corporation  duly  organized,
     validly existing and in good standing under the laws of Massachusetts. CSPI
     has the corporate  power to own its properties and to carry on its business
     as now  being  conducted  and  as  proposed  to be  conducted  and is  duly
     qualified to do business and is in good  standing in each  jurisdiction  in
     which the  failure to be so  qualified  and in good  standing  would have a
     Material Adverse Effect on CSPI.

4.02 Authority.  CSPI has all requisite  corporate  power and authority to enter
     into this Agreement and to consummate the transactions contemplated hereby.
     The execution and delivery of this  Agreement and the  consummation  of the
     transactions contemplated hereby have been duly authorized by all necessary
     corporate action on the part of CSPI. This Agreement has been duly executed
     and delivered by CSPI and constitutes  the valid and binding  obligation of
     CSPI  enforceable  against CSPI in accordance  with its terms,  except that
     such enforceability may be limited by bankruptcy, insolvency, moratorium or
     other similar laws  affecting or relating to creditors'  rights  generally,
     and is subject to general  principles of equity. The execution and delivery
     of  this  Agreement  by  CSPI  does  not,  and  the   consummation  of  the
     transactions  contemplated hereby will not, conflict with, or result in any
     violation of, or default under (with or without notice or lapse of time, or
     both), or give rise to a right of termination, cancellation or acceleration
     of any material  obligation  or loss of any material  benefit under (i) any
     provision of the articles of organization or bylaws of CSPI as amended,  or
     (ii) any material mortgage,  indenture,  lease, contract or other agreement
     or instrument,  permit,  concession,  franchise,  license, judgment, order,
     decree,  statute, law, ordinance,  rule or regulation applicable to CSPI or
     any  of  its  properties  or  assets.  No  consent,   approval,   order  or
     authorization  of, or registration,  declaration or filing with, any court,
     administrative  agency or  commission  or other  governmental  authority or
     instrumentality  ("Governmental  Entity") is required by or with respect to
     CSPI or  CSPI  in  connection  with  the  execution  and  delivery  of this
     Agreement or the  consummation  of the  transactions  contemplated  hereby,
     except  for  (i)  such   consents,   approvals,   orders,   authorizations,
     registrations, declarations and filings as may be required under applicable
     state securities laws and the securities laws of any foreign country,  (ii)
     such other consents,  authorizations,  filings, approvals and registrations
     which, if not obtained or made, would not have a Material Adverse Effect on
     CSPI and/or and would not prevent,  or materially alter or delay any of the
     transactions  contemplated  by this Agreement and (iii) subject,  as to the
     enforcement of remedies, to applicable bankruptcy,  insolvency, moratorium,
     reorganization or similar laws affecting  creditors'  rights generally,  to
     general  equitable  principles and to limitations on the  enforceability of
     indemnification  provisions as applied to certain  types of claims  arising
     hereafter, if any, under the federal securities laws.

4.03 Litigation.  There is no action, suit, proceeding, or investigation pending
     or, to its  knowledge,  currently  threatened  against  CSPI or CSPI  which
     questions the validity of this Agreement or the right of CSPI to enter into
     this Agreement or to consummate the transactions contemplated hereby.

4.04 Delivery of Documents.  CSPI has delivered or will deliver to VerticalBuyer
     at or prior to the Closing all  documents  required to be  delivered  under
     this Agreement.

                                       10
<PAGE>

                                    ARTICLE 5
           LEGEND REMOVAL, TRANSFER, CERTAIN SALES, ADDITIONAL SHARES

5.01 Removal of Legend.  The Legend  shall be removed  and  VerticalBuyer  shall
     issue,  or shall cause to be issued,  a certificate  without such legend to
     the holder of any security upon which it is stamped,  and a certificate for
     a security  shall be  originally  issued  without the  Legend,  if, (a) the
     resale of such Security is  registered  under the 1933 act, (b) such holder
     provides  VerticalBuyer with an opinion of counsel, in form,  substance and
     scope  customary  for opinions of counsel in  comparable  transactions  and
     reasonably  satisfactory to  VerticalBuyer  and its counsel (the reasonable
     cost of which  shall be borne by  VerticalBuyer  if  neither  an  effective
     registration  statement  under  the 1933 act or Rule  144 is  available  in
     connection  with such sale) to the effect that a public sale or transfer of
     such security may be made without  registration under the 1933 act pursuant
     to an exemption from such registration requirements.

5.02 Transfer  Agent  Instructions.  VerticalBuyer  shall  instruct its transfer
     agent  to  issue  certificates,  registered  in the  name  of  CSPI  or its
     transferees,  for the Shares in such amounts specified from time to time by
     CSPI or its transferees to exercise of the Warrants.

                                    ARTICLE 6
                              ELECTION OF DIRECTOR

6.01 VerticalBuyer  has  taken  all  corporate  and other  action  necessary  to
     establish the size of its Board of Directors and to elect,  effective  upon
     the Closing, Alexander Lupinetti to be one of the four directors.  Vertical
     Buyer  agrees not to change the number of directors  constituting  the full
     Board of Directors  except in accordance  with the Voting  Agreement by and
     between the Parties of even date herewith.

                                    ARTICLE 7
                    CONDITIONS TO OBLIGATIONS OF THE PARTIES

     The  obligations of CSPI on the one hand, and  VerticalBuyer,  on the other
hand, to the following conditions on or prior to the Closing:

7.01 Consents and  Approvals.  The Parties  shall have obtained all consents and
     approvals of third parties and governmental  authorities,  if any, required
     to consummate the transactions contemplated by this Agreement.

7.02 Representations,   Warranties  and  Agreements.   All  representations  and
     warranties made herein by CSPI and VerticalBuyer,  shall be true,  accurate
     and correct in all respects as of the date made and as of the Closing. CSPI
     and  VerticalBuyer,  shall have  performed all  obligations  and agreements
     undertaken  by each of them  herein  to be  performed  at or  prior  to the
     Closing.

7.03 Certificate.  CSPI shall have received from VerticalBuyer and VerticalBuyer
     shall have received from CSPI, a  certificate,  dated as of the Closing and
     executed  by the  President  or Chief  Executive  Office and  Secretary  of
     VerticalBuyer and CSPI,  respectively to the effect that the conditions set
     forth in Article 3 or Article 4 respectively shall have been satisfied.

                                       11
<PAGE>

7.04 No Material  Adverse  Changes.  There shall not have  occurred any material
     adverse change in the financial  condition,  properties,  assets (including
     intangible  assets),  liabilities,   business,  operations  or  results  of
     operations of VerticalBuyer or Lightseek.

7.05 No Actions. Consummation of the transactions contemplated by this Agreement
     shall  not  violate  any  order,   decree  or  judgment  of  any  court  or
     governmental body having jurisdiction.

7.06 Proceedings  and  Documents.   All  corporate  and  other   proceedings  in
     connection with the transactions  contemplated hereby and all documents and
     instruments  incident to such  transactions  shall be in form and substance
     reasonably  satisfactory to counsel for each of the Parties,  and each such
     Party (or its counsel) shall have received all such  counterpart  originals
     or  certified  or  other  copies  of such  documents  as it may  reasonably
     request.

7.07 Accuracy  of  Documents  and  Information.   The  copies  of  all  material
     instruments,  agreements, other documents and written information delivered
     to any Party by any other  Party or its  representatives  shall be complete
     and correct in all material respects as of the Closing.

7.08 Execution of  Agreements.  The Parties will have executed the  Registration
     Rights  Agreement  and  Voting  Agreement  in the form  attached  hereto as
     Exhibit 2.02.

                                    ARTICLE 8
                                 INDEMNIFICATION

8.01 Indemnification.  Each Party will  indemnify  and hold  harmless  the other
     Party and its respective  officers,  directors,  agents and employees,  and
     each person, if any, who controls or may control a Party within the meaning
     of the 1933  act  from and  against  any and all  losses,  costs,  damages,
     liabilities and expenses arising from claims,  demands,  actions, causes of
     action,  including,  without limitation,  reasonable legal fees, except for
     the net of any recoveries under existing insurance  policies,  tax benefits
     received  by any  Party  or its  affiliates  as a result  of such  damages,
     indemnities from third parties or in the case of third party claims, by any
     amount  actually  recovered  by a  Party  or  its  affiliates  pursuant  to
     counterclaims  made by any of them  directly  relating to the facts  giving
     rise to such third party claims  (collectively,  "Damages")  arising out of
     any misrepresentation or breach of or default in connection with any of the
     representations,  warranties,  covenants  and  agreements  given or made by
     VerticalBuyer or CSPI in this Agreement, or any exhibit or schedule to this
     Agreement.  Each Party and its affiliates  shall act in good faith and in a
     commercially  reasonable  manner to mitigate  any damages  they may suffer.

                                    ARTICLE 9
                                 MISCELLANEOUS

9.01 Notices. Any notice given hereunder shall be in writing and shall be deemed
     effective  upon  the  earlier  of  personal  delivery  (including  personal
     delivery  by  facsimile)  or the third day after  mailing by  certified  or
     registered mail, postage prepaid, as follows:

                                       12
<PAGE>

         (a)      If to CSPI:
                  Alexander Lupinetti
                  Chief Executive Officer
                  40 Linnell Circle
                  Billerica, MA 01821

                  with a copy to Dean F. Hanley, Esquire
                  Foley, Hoag & Eliot LLP
                  One Post Office Square
                  Boston, Massachusetts 02109
                  Phone: 617-832-1000
                  Facsimile: 617-832-7000

         (b)      If to VerticalBuyer:
                  Tim Rosen
                  President
                  c/o Donahue & Associates
                  83 Meadow Road West.
                  Trumbull, Connecticut 06611

     or to such other address as any Party may have  furnished in writing to the
     other Party in the manner provided above.

9.02 Entire Agreement;  Modifications;  Waiver. This Agreement and the documents
     and  instruments  and  other  agreements  specifically  referred  to herein
     constitute the final,  exclusive and complete  understanding of the Parties
     with respect to the subject  matter hereof and supersedes any and all prior
     agreements,   understandings  and  discussions  with  respect  thereto.  No
     variation or  modification of this Agreement and no waiver of any provision
     or condition hereof, or granting of any consent  contemplated hereby, shall
     be valid unless in writing and signed by the Party against whom enforcement
     of any such  variation,  modification,  waiver or consent  is  sought.  The
     rights and remedies  available to each Party pursuant to this Agreement and
     all exhibits hereunder shall be cumulative.

9.03 Captions. The captions in this Agreement are for convenience only and shall
     not be considered a part of or affect the construction or interpretation of
     any provision of this Agreement.

9.04 Counterparts. This Agreement may be executed in any number of counterparts,
     each of which when so executed  shall  constitute  an original copy hereof,
     but all of which together shall constitute one agreement.

9.05 Publicity.  Except for disclosure required by any law to which either Party
     is subject, the timing and content of any announcements, press releases and
     public  statements  to  be  made  prior  to  the  Closing   concerning  the
     transactions  contemplated  hereby  shall be  determined  solely by CSPI in
     consultation with VerticalBuyer.

9.06 Successors  and Assigns.  No Party may,  without the prior express  written
     consent of each other  Party,  assign this  Agreement  in whole or in part.
     This  Agreement  shall be  binding  upon and  inure to the  benefit  of the
     respective successors and permitted assigns of the Parties.

9.07 Governing  Law.  This  Agreement  shall be  governed by and  construed  and
     enforced in accordance  with the  substantive  laws of The  Commonwealth of
     Massachusetts without regard to its principles of conflicts of laws.

                                       13
<PAGE>

9.08 Further  Assurances.  At the  request of any of the  Parties,  and  without
     further  consideration,  the other Parties agree to execute such  documents
     and  instruments  and to do  such  further  acts  as may  be  necessary  or
     desirable to effectuate the transactions  contemplated hereby,  required by
     law, statute, rule or regulation.

9.09 Confidentiality and Nondisclosure  Agreements.  All information which shall
     have been furnished or disclosed by one Party to the other pursuant to this
     Agreement,  including without limitation,  business, financial and customer
     development plans, forecasts,  strategies and information, shall be held in
     confidence  pursuant  hereto and shall not be disclosed to any person other
     than their respective employees,  directors, legal counsel,  accountants or
     financial  advisors,  with a need to have access to such  information,  and
     shall not make any use  whatsoever of such  information  except to evaluate
     such  information  internally.  The  confidentiality  provisions  set forth
     herein shall survive until two years from the date hereof, unless the Party
     desiring to disclose the information can document that (i) such information
     is (through no improper  action or inaction by such Party or any affiliate,
     agent,  consultant or employee)  generally available to the public, or (ii)
     was in its possession or known by it prior to receipt from the other Party,
     or (iii)  was  rightfully  disclosed  to it by a third  party,  or (iv) was
     independently  developed  by employees of such Party who have had no access
     to such information.

9.10 Severability.  The  invalidity  or  unenforceability  of any  one  or  more
     phrases,  sentences,  clauses or  provisions  of this  Agreement  shall not
     affect the validity or  enforceability  of the  remaining  portions of this
     Agreement or any part thereof.

     IN WITNESS  WHEREOF,  each Party has executed this Agreement as of the date
first above written.

                                       CSP INC.

                                       By: /s/ Alexander R. Lupinetti
                                           ----------------------------
                                            Alexander R. Lupinetti,
                                               Chief Executive Officer

                                       VERTICALBUYER, INC.

                                        By: /s/ Tim Rosen
                                            ----------------------
                                            Tim Rosen,
                                               President




                                       14
<PAGE>



                          RGISTRATION RIGHTS AGREEMENT


     THIS REGISTRATION RIGHTS AGREEMENT (this "Agreement"), dated as of March 1,
2000 (the "Agreement"),  is made by and between VerticalBuyer,  Inc., a Delaware
corporation   ("VerticalBuyer")  and  CSP  Inc.,  a  Massachusetts   corporation
("CSPI").

     WHEREAS,   in  connection  with  the  Securities  Purchase  and  Facilities
Agreement dated March 1, 2000.  between CSPI and VerticalBuyer  (the "Securities
and Facilities Agreement"), VerticalBuyer has agreed, upon the terms and subject
to the conditions of said Securities and Facilities Agreement, to issue and sell
to CSPI 2,000,000 shares of  VerticalBuyer's  common stock, par value $0.001 per
share  (the  "Shares"),  together  with  common  stock  purchase  warrants  (the
"Warrants") in three classes to purchase in the aggregate  3,000,000  additional
Shares; and

     WHEREAS,  in  connection  with  the  sale  of the  Shares  to  CSPI,  it is
contemplated that CSPI will distribute  approximately  700,000 Shares ratably to
its stockholders; and

     WHEREAS,  Vertical Buyer has agreed to issue 75,000 Warrants ratably to all
the holders of options to purchase CSPI common stock; and

     WHEREAS,  to induce CSPI to execute and deliver the Securities Purchase and
Facilities  Agreement,  VerticalBuyer has agreed to provide certain registration
rights  under  the  Securities  Act of  1933,  as  amended,  and the  rules  and
regulations  thereunder,  or any similar  successor statute  (collectively,  the
"1933 Act"),  and applicable state securities laws with respect to the Shares as
follows:

     (a)  the resale of 2,000,000 Shares privately placed to CSPI including

     (b)  the proposed  distribution of  approximately  700,000 Shares to CSPI's
          stockholders

     (c)  the issuance and resale of 3,000,000 Shares underlying the Warrants

     (d)  the issuance of up to 75,000 Warrants to the option holders of CSPI

     (e)  the issuance of up to 75,000 Shares  underlying the Warrants issued to
          the option holders of CSPI

     NOW,  THEREFORE,  in consideration of the premises and the mutual covenants
contained  herein and other good and  valuable  consideration,  the  receipt and
sufficiency  of which are hereby  acknowledged,  VerticalBuyer  and CSPI  hereby
agree as follows:

1.   Definitions. Capitalized terms used herein and not otherwise defined herein
     shall  have  the  respective  meanings  set  forth  in the  Securities  and
     Facilities Agreement. As used in this Agreement,  the following terms shall
     have the following meanings:

     (a)  "Registrable Securities" means the Shares and Warrants issued or to be
          issued by VerticalBuyer in connection with the following transactions:

          (i)  the resale of 2,000,000 Shares privately placed to CSPI including


<PAGE>

          (ii) the proposed  distribution  of  approximately  700,000  Shares to
               CSPI's stockholders;

          (iii)the  issuance  and  resale of  3,000,000  Shares  underlying  the
               Warrants;

          (iv) the  issuance of up to 75,000  Warrants to the option  holders of
               CSPI;

          (v)  the  issuance  of up to 75,000  Shares  underlying  the  Warrants
               issued to the option holders of CSPI; and

          (vi) any Shares issued as "late  registration  payments" as defined in
               paragraph 2(c).

     (b)  "Registration  Period"  means  the  period  between  the  date of this
          Agreement  and  the  earlier  of (i)  the  date  on  which  all of the
          Registrable  Securities  have  been  sold and no  further  Registrable
          Securities may be issued in the future,  or (ii) the date on which all
          the  Registrable  Securities (in the opinion of CSPI's counsel) may be
          immediately sold without registration.

     (c)  "Registration Statement" means a registration statement filed with the
          Securities and Exchange Commission (the "SEC") under the 1933 Act.

     (d)  The terms  "register,"  "registered,"  and  "registration"  refer to a
          registration   effected  by  preparing  and  filing  the  Registration
          Statement  in  compliance  with the 1933 Act and  pursuant to Rule 415
          under  the 1933  Act or any  successor  rule  providing  for  offering
          securities on a continuous basis ("Rule 415") and applicable rules and
          regulations   thereunder,   and  the   declaration   or   ordering  of
          effectiveness of such Registration Statement by the SEC.

2.   Registration.

     (a)  Mandatory  Registration.  VerticalBuyer  will  file  the  Registration
          Statement on Form SB-2 (or if Form SB-2 is not then available, on such
          form of  registration  statement  as is then  available  to  effect  a
          registration  of  all  the  Registrable   Securities)   with  the  SEC
          registering the  Registrable  Securities for resale within thirty (30)
          business days of the this Agreement. To the extent allowable under the
          1933 Act, the  Registration  Statement  shall  include the  securities
          listed in paragraph  101(a) and such  additional  Shares as may become
          issuable  upon  exercise  of  the  Warrants  (i) to  prevent  dilution
          resulting from stock splits, stock dividends or similar  transactions,
          or (ii) by reason of changes in the exercise  price of the Warrants in
          accordance  with the terms thereof.  VerticalBuyer  shall use its best
          efforts to cause the Registration  Statement to be declared  effective
          by the SEC as soon as  practicable  after  filing  and in any event no
          later than the  ninetieth  (90th)  business day  following the Closing
          Date (the "Required Effective Date"). Such best efforts shall include,
          but not be limited to,  promptly  responding to all comments  received
          from the staff of the SEC. Should  VerticalBuyer  receive notification
          from the SEC that the Registration Statement will receive no action or
          no review from the SEC,  VerticalBuyer  shall cause such  Registration
          Statement to become  effective  within seven (7) business days of such
          SEC notification.  Once declared  effective by the SEC,  VerticalBuyer
          shall cause the Registration  Statement to remain effective throughout
          the Registration Period.

                                       2
<PAGE>

     (c)  Late Registration  Payments.  If the Registration  Statement  required
          pursuant to paragraph  2(a) above has not been  declared  effective by
          the  Required  Effective  Date,   VerticalBuyer  will  issue  to  CSPI
          additional  Shares equal to one percent (1%) of the  purchased  Shares
          for each full month following the Required Effective Date,  continuing
          through the date the Registration  Statement is declared  effective by
          the SEC. The Late  Registration  Share  issuance will be prorated on a
          daily basis for partial  months and will be issued to CSPI within five
          (5) business days  following the  effective  date of the  Registration
          Statement.

          The obligations of VerticalBuyer under this paragraph 2(d) will expire
          upon the earlier of the effectiveness of the Registration Statement or
          when all of the  Registrable  Securities may be sold by under Rule 144
          under the 1933 Act without being subject to any volume restrictions.

3.   Additional   Obligations   of   VerticalBuyer.   In  connection   with  the
     registration of the Registrable  Securities,  VerticalBuyer  shall have the
     following additional obligations:

     (a)  VerticalBuyer shall keep the Registration Statement effective pursuant
          to Rule 415 under the 1933 Act at all times  during  the  Registration
          Period.

     (b)  The Registration Statement shall not contain any untrue statement of a
          material  fact or omit to state a material  fact required to be stated
          therein,  or necessary to make the statements therein, in light of the
          circumstances  in which they were made, not misleading.  VerticalBuyer
          shall  prepare  and  file  with  the SEC  such  amendments  (including
          post-effective   amendments)  and  supplements  to  the   Registration
          Statement and the prospectus used in connection with the  Registration
          Statement  as  may  be  necessary  to  permit  sales  pursuant  to the
          Registration  Statement at all times during the  Registration  Period,
          and, during such period,  shall comply with the provisions of the 1933
          Act with respect to the disposition of all  Registrable  Securities of
          VerticalBuyer   covered  by  the  Registration   Statement  until  the
          termination of the Registration  Period, or, if earlier,  such time as
          all  of  such  Registrable   Securities  which  require  an  effective
          registration statement under the 1933 Act have been disposed of.

     (c)  VerticalBuyer shall furnish to CSPI and its legal counsel (i) promptly
          after the same is prepared  and publicly  distributed,  filed with the
          SEC or  received  by  VerticalBuyer,  one  copy  of  the  Registration
          Statement and any amendment thereto;  each preliminary  prospectus and
          final prospectus and each amendment or supplement thereto, each letter
          written by or on behalf of  VerticalBuyer  to the SEC and each item of
          correspondence  from the SEC or the  staff of the  SEC,  in each  case
          relating  to such  Registration  Statement;  and (ii)  such  number of
          copies of a prospectus,  including a preliminary  prospectus,  and all
          amendments and supplements  thereto,  and such other documents as CSPI
          may reasonably  request in order to facilitate the  disposition of the
          Registrable Securities.

                                       3
<PAGE>

     (d)  VerticalBuyer  shall use its best  efforts to (i) register and qualify
          the Registrable Securities covered by the Registration Statement under
          such other  securities or blue sky laws of such  jurisdictions as CSPI
          reasonably requests, (ii) prepare and file in those jurisdictions such
          amendments  (including  post-effective  amendments) and supplements to
          such  registrations and qualifications as may be necessary to maintain
          the effectiveness  thereof during the Registration  Period, (iii) take
          such other actions as may be necessary to maintain such  registrations
          and  qualifications  in effect at all times  during  the  Registration
          Period,  and (iv)  take all  other  actions  reasonably  necessary  or
          advisable  to  qualify  the  Registrable  Securities  for sale in such
          jurisdictions.  Notwithstanding the foregoing provision, VerticalBuyer
          shall  not be  required  in  connection  therewith  or as a  condition
          thereto to (i)  qualify to do business  in any  jurisdiction  where it
          would not  otherwise  be required  to qualify but for this  paragraph,
          subject  itself to general  taxation in any such  jurisdiction,  (iii)
          file a general consent to service of process in any such jurisdiction,
          (iv) provide any undertakings that cause material expense or burden to
          VerticalBuyer,  or (v) make any change in its charter or bylaws, which
          in each case the Board of Directors of VerticalBuyer  determines to be
          contrary to the best interests of VerticalBuyer and its stockholders.

     (e)  VerticalBuyer shall notify CSPI of the happening of any event of which
          VerticalBuyer  has  knowledge  as a  result  of which  the  prospectus
          included in the  Registration  Statement as then in effect includes an
          untrue  statement of a material fact or omits to state a material fact
          required  to be stated  therein or  necessary  to make the  statements
          therein, in light of the circumstances under which they were made, not
          misleading  (a  "Suspension  Event").  VerticalBuyer  shall  make such
          notification as promptly as practicable  after  VerticalBuyer  becomes
          aware of such  Suspension  Event,  shall promptly use its best efforts
          (but in any event  within  five (5) days) to prepare a  supplement  or
          amendment  to  the  Registration  Statement  to  correct  such  untrue
          statement  or omission,  and shall  deliver a number of copies of such
          supplement  or  amendment  to  CSPI as CSPI  may  reasonably  request.
          VerticalBuyer  shall  promptly  notify  CSPI as soon as the use of the
          Registration Statement may be resumed.

     (f)  VerticalBuyer  shall use its best  efforts to prevent the  issuance of
          any stop order or other  suspension of effectiveness of a Registration
          Statement and, if such an order is issued,  shall use its best efforts
          to obtain the  withdrawal of such order at the earliest  possible time
          and to notify CSPI of the  issuance  of such order and the  resolution
          thereof.

     (g)  VerticalBuyer  shall  cooperate  with CSPI to  facilitate  the  timely
          preparation and delivery of certificates  (not bearing any restrictive
          legends) representing Registrable Securities to be offered pursuant to
          the Registration  Statement and enable such certificates to be in such
          denominations  or amounts as the case may be, and  registered  in such
          names as CSPI may reasonably request; and, within one (1) business day
          after a Registration  Statement which includes Registrable  Securities
          is ordered  effective by the SEC,  VerticalBuyer  shall  deliver,  and
          shall cause legal counsel selected by VerticalBuyer to deliver, to the
          transfer  agent for the  Registrable  Securities  instructions  to the
          transfer agent to issue new stock certificates without a legend and an
          opinion  of such  counsel  that the  Shares  and  Warrants  have  been
          registered.

                                       4
<PAGE>

     (h)  VerticalBuyer  shall  promptly  prepare  and  file  with  the SEC such
          amendments (including post-effective  amendments) and supplements to a
          Registration  Statement and the prospectus used in connection with the
          Registration Statement as may be necessary in order to change the plan
          of distribution set forth in such Registration Statement.

     (i)  VerticalBuyer  shall  comply with all  applicable  laws related to the
          Registration  Statement  and offering and sale of  securities  and all
          applicable  rules  and  regulations  of  governmental  authorities  in
          connection therewith  (including,  without limitation,  the Securities
          Act and the Securities Exchange Act of 1934, as amended, and the rules
          and regulations promulgated by the SEC).

     (j)  VerticalBuyer  shall take all other reasonable actions as the CSPI may
          reasonably  request to  expedite  and  facilitate  disposition  of the
          Registrable Securities pursuant to the Registration Statement.

4.   Obligations of CSPI. In connection with the registration of the Registrable
     Securities, CSPI shall have the following obligations:

     (a)  CSPI will  cooperate  with  VerticalBuyer  as reasonably  requested by
          VerticalBuyer  in connection  with the  preparation  and filing of the
          Registration Statement hereunder.

     (b)  CSPI agrees that, upon receipt of any notice from VerticalBuyer of the
          happening  of any event of the kind  described in Section 3, CSPI will
          immediately discontinue disposition of Registrable Securities pursuant
          to the Registration  Statement  covering such  Registrable  Securities
          until  CSPI's  receipt  of the copies of the  supplemented  or amended
          prospectus.

5.   Expenses of Registration.  All reasonable  expenses  incurred in connection
     with registrations, filings or qualifications pursuant to Sections 2 and 3,
     including, without limitation, all registration, listing and qualifications
     fees,  printers and accounting fees, the fees and  disbursements of counsel
     for VerticalBuyer, and the reasonable fees and disbursements of one counsel
     selected by CSPI, shall be borne by VerticalBuyer.

6.   Indemnification.

     (a)  To the extent permitted by law,  VerticalBuyer will indemnify and hold
          harmless CSPI, its directors,  its officers,  each person, if any, who
          controls  the CSPI within the meaning of the 1933 Act or the  Exchange
          Act,  (each,  an "Indemnified  Person"),  against any losses,  claims,
          damages,  expenses or  liabilities  (joint or  several)  (collectively
          together with actions,  proceedings  or inquiries by any regulatory or
          self-regulatory  organization,  whether  commenced  or  threatened  in
          respect  thereof,  "Claims") to which any of them become subject under
          the 1933 Act, the Exchange  Act or  otherwise,  insofar as such Claims
          arise  out of or are  based  upon  any  of the  following  statements,
          omissions  or  violations  in  the  Registration   Statement,  or  any
          post-effective  amendment thereof, or any prospectus included therein:
          (i) any untrue  statement  or alleged  untrue  statement of a material
          fact  contained in the  Registration  Statement or any  post-effective
          amendment thereof or the omission or alleged omission to state therein
          a material fact required to be stated therein or necessary to make the


                                       5
<PAGE>

          statements  therein  not  misleading,  (ii) any  untrue  statement  or
          alleged  untrue   statement  of  a  material  fact  contained  in  any
          preliminary  prospectus  if used prior to the  effective  date of such
          Registration  Statement,  or  contained  in the final  prospectus  (as
          amended or supplemented,  if VerticalBuyer files any amendment thereof
          or  supplement  thereto  with  the  SEC) or the  omission  or  alleged
          omission to state  therein any  material  fact  necessary  to make the
          statements made therein, in light of the circumstances under which the
          statements  therein were made, not misleading,  or (iii) any violation
          or alleged  violation by  VerticalBuyer  of the 1933 Act, the Exchange
          Act  or  any  other  law,   including  without  limitation  any  state
          securities  law or any rule or regulation  thereunder  (the matters in
          the  foregoing   clauses  (i)  through   (iii)  being,   collectively,
          "Violations"). VerticalBuyer shall reimburse CSPI and each Indemnified
          Person,  promptly  as  such  expenses  are  incurred  and  are due and
          payable,  for any legal fees or other reasonable  expenses incurred by
          them in  connection  with  investigating  or defending any such Claim.
          Notwithstanding   anything  to  the  contrary  contained  herein,  the
          indemnification  agreement contained in this paragraph 6(a): (A) shall
          not apply to a Claim  arising out of or based upon a  Violation  which
          occurs in reliance upon and in conformity with  information  furnished
          in writing to  VerticalBuyer  by any Indemnified  Person expressly for
          use in connection with the preparation of the  Registration  Statement
          or  any  such  amendment  thereof  or  supplement   thereto,  if  such
          prospectus  was timely made  available  by  VerticalBuyer  pursuant to
          paragraph 3(c) hereof; (B) with respect to any preliminary  prospectus
          shall not inure to the benefit of any Indemnified  Party from whom the
          person  asserting any such Claim purchased the Registrable  Securities
          that  are  the  subject  thereof  (or to  the  benefit  of any  person
          controlling  such  person)  if the untrue  statement  or  omission  of
          material fact contained in the preliminary prospectus was corrected on
          a timely basis in the prospectus, as then amended or supplemented,  if
          such prospectus was timely made available by VerticalBuyer pursuant to
          paragraph 3(c) hereof;  and the Indemnified Party was promptly advised
          in writing not to use the incorrect prospectus prior to the use giving
          rise to a Violation and such Indemnified Party,  notwithstanding  such
          notice,  used it (C) shall not apply to amounts paid in  settlement of
          any Claim if such  settlement  is effected  without the prior  written
          consent of  VerticalBuyer,  which  consent  shall not be  unreasonably
          withheld.  Such  indemnity  shall  remain  in full  force  and  effect
          regardless  of  any  investigation   made  by  or  on  behalf  of  the
          Indemnified  Persons and shall survive the transfer of the Registrable
          Securities pursuant to Section 9.

     (b)  In  connection  with  any  Registration  Statement  in  which  CSPI is
          participating,  CSPI will  indemnify  and hold  harmless,  to the same
          extent  and  in  the  same  manner  set  forth  in   paragraph   6(a),
          VerticalBuyer,  each of its directors,  each of its officers who signs
          the  Registration  Statement,   each  person,  if  any,  who  controls
          VerticalBuyer  within the meaning of the 1933 Act or the Exchange Act,
          and  any  other  stockholder   selling  securities   pursuant  to  the
          Registration  Statement  or any of its  directors  or  officers or any
          person who controls  such  stockholder  within the meaning of the 1933
          Act or the Exchange Act (collectively and together with an Indemnified
          Person,  an  "Indemnified  Party"),  against any Claim to which any of
          them may  become  subject,  under the 1933 Act,  the  Exchange  Act or
          otherwise,  insofar as such  Claim  arises out of or is based upon any
          Violation,  in each case to the extent (and only to the  extent)  that
          such Violation  occurs in reliance upon and in conformity with written
          information  furnished to  VerticalBuyer  by CSPI expressly for use in
          connection with such Registration Statement,  and subject to paragraph
          6(c),  CSPI  will  promptly  reimburse  any  legal or  other  expenses
          (promptly  as  such   expenses  are  incurred  and  due  and  payable)
          reasonably   incurred  by  it  in  connection  with  investigating  or
          defending  any such  Claim;  provided,  however,  that  the  indemnity
          agreement  contained in this paragraph 6(b) shall not apply to amounts
          paid in settlement of any Claim if such settlement is effected without
          the  prior  written  consent  of  CSPI,  which  consent  shall  not be
          unreasonably withheld;  provided further,  however, that CSPI shall be



                                        6
<PAGE>

          liable  under  this  Agreement  (including  this  paragraph  6(b)  and
          paragraph  7) for only that  amount of a Claim as does not  exceed the
          net  proceeds  actually  received  by CSPI as a result  of the sale of
          Registrable Securities pursuant to such Registration  Statement.  Such
          indemnity  shall  remain in full  force and effect  regardless  of any
          investigation made by or on behalf of such Indemnified Party and shall
          survive the transfer of the Registrable Securities pursuant to Section
          9.  Notwithstanding  anything to the contrary  contained  herein,  the
          indemnification  agreement  contained  in  this  paragraph  6(b)  with
          respect to any preliminary  prospectus  shall not inure to the benefit
          of any  Indemnified  Party if the  untrue  statement  or  omission  of
          material fact contained in the preliminary prospectus was corrected on
          a timely basis in the prospectus, as then amended or supplemented, and
          the Indemnified Party failed to utilize such corrected prospectus.

     (c)  Promptly after receipt by an Indemnified  Person or Indemnified  Party
          under  this  Section  6 of notice of the  commencement  of any  action
          (including  any  governmental  action),  such  Indemnified  Person  or
          Indemnified  Party  shall,  if a Claim in  respect  thereof is to made
          against any  indemnifying  party under this  Section 6, deliver to the
          indemnifying  party a written notice of the  commencement  thereof and
          this  indemnifying  party shall have the right to participate in, and,
          to the extent the  indemnifying  party so  desires,  jointly  with any
          other indemnifying  party similarly noticed,  to assume control of the
          defense thereof with counsel mutually satisfactory to the indemnifying
          parties and the Indemnified  Person or the  Indemnified  Party, as the
          case may be; provided,  however,  that such  indemnifying  party shall
          diligently  pursue such defense;  and provided,  further,  that if the
          defendants in any such action include both the  Indemnified  Person or
          Party and the indemnifying  party, and the Indemnified Person or Party
          shall have reasonably  concluded that a conflict may arise between the
          positions  of the  indemnifying  party and the  Indemnified  Person or
          Party in  conducting  the defense of any such action or that there may
          be legal  defenses  available to it and/or other  indemnified  parties
          which are  different  from or  additional  to those  available  to the
          indemnifying  party,  then the Indemnified  Person or Party shall have
          the right to retain separate  counsel,  the fees and expenses of which
          shall be paid by the indemnifying party, to assume such legal defenses
          and to otherwise  participate  in the defense of such action on behalf
          of such Indemnified  Person or Party. In case an Indemnified Person or
          Party shall have retained  separate counsel pursuant to the proviso in
          the immediately  preceding sentence,  the indemnifying party shall not
          be liable for the expenses of more than one such separate counsel. The
          failure to deliver written notice to the  indemnifying  party within a
          reasonable  time of the  commencement  of any such  action  shall  not
          relieve such  indemnifying  party of any liability to the  Indemnified
          Person or Indemnified Party under this Section 6, except to the extent
          that the  indemnifying  party is  prejudiced  in its ability to defend
          such action. The  indemnification  required by this Section 6 shall be
          made by periodic  payments of the amount  thereof during the course of
          the  investigation  or  defense,  as such  expense,  loss,  damage  or
          liability is incurred and is due and payable.

                                       7
<PAGE>

7.   Contribution.  If the indemnification  provided for in Section 6 is for any
     reason held by a court of competent  jurisdiction  to be  unavailable to or
     otherwise  insufficient to hold harmless an Indemnified  Person or Party in
     respect of any losses, claims, damages, liabilities or expenses referred to
     therein,  then each  indemnifying  party shall  contribute to the aggregate
     amount paid or payable by such Indemnified Person or Party, as incurred, as
     a result of any losses, claims,  damages,  liabilities or expenses referred
     to therein (i) in such proportion as is appropriate to reflect the relative
     benefits received by VerticalBuyer, on the one hand, and CSPI, on the other
     hand,  from the  original  issuance  of the common  stock of  VerticalBuyer
     (including  the  common  stock  issued or  issuable  upon the  exercise  of
     warrants)  pursuant to that  certain  Securities  Purchase  and  Facilities
     Agreement  of even date  herewith,  or (ii) if the  allocation  provided by
     clause (i) is not  permitted by  applicable  law, in such  proportion as is
     appropriate to reflect not only the relative benefits referred to in clause
     (i) but also the  relative  fault of  VerticalBuyer,  on the one hand,  and
     CSPI, on the other hand, in connection  with the statements or omissions or
     inaccuracies  in the  Registration  Statement or any  preliminary  or final
     prospectus therein, or in the representations and warranties herein,  which
     resulted in such losses, claims, damages,  liabilities or expenses, as well
     as any other  relevant  equitable  considerations.  The  relative  fault of
     VerticalBuyer,  on the one hand,  and CSPI,  on the  other  hand,  shall be
     determined by reference to, among other things,  whether any such untrue or
     alleged untrue statement of a material fact or omission or alleged omission
     to state a  material  fact or any such  inaccurate  or  alleged  inaccurate
     representation   or   warranty   relates   to   information   supplied   by
     VerticalBuyer,  on the one  hand,  or  CSPI,  on the  other  hand,  and the
     parties' relative intent, knowledge,  access to information and opportunity
     to  correct or prevent  such  statement  or  omission.  The amount  paid or
     payable by a party as a result of the losses, claims, damages,  liabilities
     and expenses  referred to above shall be deemed to include,  subject to the
     limitations  set forth in Section  6, any legal or other  fees or  expenses
     reasonably  incurred  by such party in  connection  with  investigating  or
     defending any action or claim.  The  provisions set forth in Section 6 with
     respect to notice of  commencement of any action shall apply if a claim for
     contribution is to be made under this Section 7; provided, however, that no
     additional  notice  shall be required  with respect to any action for which
     notice has been given  under  Section 6 for  purposes  of  indemnification.
     Notwithstanding  the  provisions  of this  Section  7, no person  guilty of
     fraudulent  misrepresentation (within the meaning of paragraph 11(f) of the
     Securities Act) shall be entitled to  contribution  from any person who was
     not  guilty of such  fraudulent  misrepresentation.  For  purposes  of this
     Section 7, each officer and  employee of CSPI and each person,  if any, who
     controls CSPI within the meaning of the Securities Act and the Exchange Act
     shall have the same rights to  contribution  as CSPI,  and each director of
     VerticalBuyer,  each officer of  VerticalBuyer  who signed the Registration
     Statement,  and each person, if any, who controls  VerticalBuyer within the
     meaning  of the  Securities  Act and the  Exchange  Act shall have the same
     rights to contribution as VerticalBuyer.

8.   Assignment of Registration Rights. The rights of CSPI hereunder,  including
     the right to have  VerticalBuyer  register  the  Shares,  Warrants  and the
     Shares  underlying  the  Warrants  pursuant  to  this  Agreement  shall  be
     automatically  assigned  to  transferees  of  all or any  portion  of  such
     securities  only if such transfer  shall have been made in accordance  with
     the applicable requirements of the Securities and Facilities Agreement.

9.   Amendment of  Registration  Rights.  Provisions  of this  Agreement  may be
     amended and the observance  thereof may be waived (either generally or in a
     particular  instance and either  retroactively or prospectively)  only with
     the written  consent of  VerticalBuyer  and CSPI.  Any  amendment or waiver
     effected in accordance  with this Section 10 shall be binding upon CSPI and
     VerticalBuyer.  Notwithstanding the foregoing, no amendment or waiver shall
     retroactively affect CSPI without its consent.

                                       8
<PAGE>

10.  Miscellaneous.

     (a)  Conflicting Instructions.  A person or entity is deemed to be a holder
          of  Registrable  Securities  whenever  such  person or entity  owns of
          record  such  Registrable   Securities.   If  VerticalBuyer   receives
          conflicting  instructions,  notices  or  elections  from  two or  more
          persons or entities with respect to the same  Registrable  Securities,
          VerticalBuyer  shall  act upon the  basis of  instructions,  notice or
          election  received  from  the  registered  owner  of such  Registrable
          Securities.

     (b)  Notices. Any notices required or permitted to be given under the terms
          of this Agreement  shall be sent by certified or registered mail (with
          return  receipt  requested)  or  delivered  personally  or by  courier
          (including a nationally  recognized  overnight delivery service) or by
          facsimile transmission.  Any notice so given shall be deemed effective
          three days after being  deposited in the U.S. Mail, or upon receipt if
          delivered personally or by courier or facsimile transmission,  in each
          case  addressed  to a party at the  following  address  or such  other
          address as each such Party  furnishes to the other in accordance  with
          this paragraph 12(b):

         If to VerticalBuyer:
         Tim Rosen,
         President
         VerticalBuyer, Inc.
         c/o Donahue & Associates
         83 Meadow Road West
         Trumbull, Connecticut 06611

         If to CSPI:
         Alexander Lupinetti
         Chief Executive Officer
         40 Linnell Circle
         Billerica, MA 01821

         with a copy to
         Dean F. Hanley, Esquire
         Foley, Hoag & Eliot LLP
         One Post Office Square
         Boston, Massachusetts 02109
         Phone: 617-832-1000
         Facsimile: 617-832-7000


     (c)  Waiver.  Failure of any party to  exercise  any right or remedy  under
          this  Agreement or otherwise,  or delay by a party in exercising  such
          right or remedy, shall not operate as a waiver thereof.

     (d)  Governing Law. This  Agreement  shall be governed by and construed and
          enforced in accordance with the substantive  laws of The  Commonwealth
          of  Massachusetts  without  regard to its  principles  of conflicts of
          laws,  and any  disputes  arising  hereunder  will be  adjudicated  in
          federal or state court situated therein. Each party hereto consents to
          venue  in  Massachusetts  and  to  the  personal  and  subject  matter
          jurisdiction of said courts and, to the extent permitted by applicable
          law,  agrees to waive any objection as to such  jurisdiction or venue,
          and agrees not to assert any defense based on lack of  jurisdiction or
          venue.

                                       9
<PAGE>

     (e)  Severability.  In the event that any  provision  of this  Agreement is
          invalid or unenforceable  under any applicable statute or rule of law,
          then such provision shall be deemed  inoperative to the extent that it
          may conflict  therewith  and shall be deemed  modified to conform with
          such  statute or rule of law.  Any  provision  hereof  which may prove
          invalid or  unenforceable  under any law shall not affect the validity
          or enforceability of any other provision hereof.

     (f)  Entire  Agreement.  This  Agreement,  the  Securities  and  Facilities
          Agreement,  and the Warrants  (including  all  schedules  and exhibits
          thereto)  constitute  the  entire  agreement  among the  Parties  with
          respect  to the  subject  matter  hereof  and  thereof.  There  are no
          restrictions,  promises, warranties or undertakings,  other than those
          set forth or referred to herein or therein.  This Agreement supersedes
          all prior agreements and understandings  among the parties hereto with
          respect to the subject matter hereof.

     (g)  Successors  and  Assigns.  Subject  to the  requirements  of Section 9
          hereof,  this  Agreement  shall inure to the benefit of and be binding
          upon the successors and assigns of each of the Parties.

     (h)  Use of Pronouns.  All pronouns and any variations thereof refer to the
          masculine,  feminine or neuter, singular or plural, as the context may
          require.

     (i)  Headings.  The  headings  and  subheadings  in the  Agreement  are for
          convenience of reference only and shall not limit or otherwise  affect
          the meaning hereof.

     (j)  Counterparts.   This   Agreement  may  be  executed  in  two  or  more
          counterparts,  each of which  shall be deemed an  original  but all of
          which shall  constitute one and the same  agreement.  This  Agreement,
          once executed by Party,  may be delivered to the other party hereto by
          facsimile  transmission,  and facsimile signatures shall be binding on
          the parties hereto.

     (k)  Further Acts. Each Party shall do and perform, or cause to be done and
          performed,  all such  further acts and things,  and shall  execute and
          deliver  all such  other  agreements,  certificates,  instruments  and
          documents,  as the  other.  party may  reasonably  request in order to
          carry out the intent and accomplish the purposes of this Agreement and
          the consummation of the transactions contemplated hereby.

     (l)  Consents.  All  consents  and  other  determinations  to  be  made  by
          transferees pursuant to this Agreement shall be made by CSPI.

    IN WITNESS  WHEREOF,  the Parties  have caused  this  Agreement  to be duly
executed as of the date first above written.


                                    VERTICALBUYER, INC.

                                    By: /s/Tim Rosen
                                        -----------------------
                                            Tim Rosen,
                                            President

                                    CSP INC.

                                    By: /s/Alexander Lupinetti
                                        ----------------------
                                           Alexander Lupinetti,
                                           Chief Executive Officer




                                       10
<PAGE>



                                VOTING AGREEMENT


     Agreement  (this  "Agreement")  made  as of  March  2,  2000  by and  among
VerticalBuyer,  Inc.,  a  Delaware  corporation  (the  "Company"),  CSP Inc.,  a
Massachusetts  corporation ("CSPI"),  Tim Rosen ("First Stockholder") and Leslie
Kent  ("Second  Stockholder"  and,  collectively  with  First  Stockholder,  the
"Stockholders").  (The parties to this Agreement will hereinafter be referred to
as the "Parties.")

     In  consideration of the mutual  covenants  herein  contained,  the Parties
agree as follows:

     1. Board of Directors;  By-Laws.  The Stockholders  will vote all shares of
common  stock,  preferred  stock  or any  other  class  of  voting  security  of
VerticalBuyer  now or hereafter owned or controlled by them (the "Shares"),  and
otherwise to use their respective best efforts as stockholders of VerticalBuyer,
to elect one person  designated  by CSPI as a director of  VerticalBuyer  in any
subsequent  election of directors of VerticalBuyer.  The initial nominee of CSPI
to be director is Alexander  Lupinetti,  Chairman of the Board of Directors  and
President of CSPI.

     VerticalBuyer  and the Stockholders  agree not to take any action to remove
the person designated or nominated by CSPI as director,  to change the number of
directors constituting the full Board of Directors, or to amend any provision of
the Certificate of  Incorporation  or By-Laws of  VerticalBuyer  relating to the
election and number of  directors,  as  presently  in effect,  without the prior
written consent of CSPI.

     2. Conduct of Business of VerticalBuyer. During the period from the date of
this  Agreement  and  continuing  until  the  effective  date of a  registration
statement  filed with the  Securities  and Exchange  Commission  relating to the
Shares  purchased  by CSPI and the Shares  underlying  the warrant  purchased by
CSPI,  VerticalBuyer  shall  not  do,  cause  or  permit  and  shall  cause  its
subsidiaries  not to do,  cause or permit,  any of the  following,  without  the
affirmative   vote  of  the  person   designated   by  CSPI  as  a  director  of
VerticalBuyer:

     (a)  Material Contracts. Enter into any material contract or commitment, or
          violate, amend or otherwise modify or waive any of the terms of any of
          its material contracts,  other than in the ordinary course of business
          consistent with past practice;

     (b)  Issuance of Securities. Issue, deliver or sell or authorize or propose
          the issuance, delivery or sale of, or purchase or propose the purchase
          of, any shares of its capital stock or securities convertible into, or
          subscriptions,  rights,  warrants  or  options  to  acquire,  or other
          agreements or commitments of any character  obligating it to issue any
          such shares or other convertible securities.

     (c)  Intellectual Property.  Transfer to any person or entity any rights to
          its  intellectual  property  other  than  in the  ordinary  course  of
          business consistent with past practice.

     (d)  Exclusive Rights. Enter into or amend any material agreements pursuant
          to which any  other  party is  granted  exclusive  marketing  or other
          exclusive  rights  of any type or  scope  with  respect  to any of its
          services.


<PAGE>

     (e)  Dispositions. Sell, lease, license or otherwise dispose of or encumber
          any of its properties or assets which are material, individually or in
          subsidiaries'  business,  taken as a  whole,  except  in the  ordinary
          course of business consistent with past practice;

     (f)  Indebtedness.  Incur any  indebtedness for borrowed money or guarantee
          any  such  indebtedness  or  issue  or sell  any  debt  securities  or
          guarantee any debt  securities of others;  (g) Leases.  Enter into any
          operating lease in excess of $24,000 per annum;

     (h)  Payment  of  Obligations.  Pay,  discharge  or satisfy in an amount in
          excess of $10,000 in any one case or  $100,000 in the  aggregate,  any
          claim,  liability  or  obligation  (absolute,   accrued,  asserted  or
          unasserted,  contingent  or  otherwise)  arising  other  than  in  the
          ordinary  course of  business,  other than the  payment,  discharge or
          satisfaction  of  liabilities  reflected  or  reserved  against in the
          financial  statements of  VerticalBuyer  or its subsidiary,  Lightseek
          Limited;

     (i)  Capital Expenditures. Make any capital expenditures, capital additions
          or capital  improvements except in the ordinary course of business and
          consistent with past practice;

     (j)  Insurance.  Materially  reduce  the amount of any  material  insurance
          coverage  provided by insurance  policies  whether  existing or placed
          during the term of this Agreement;

     (k)  Termination  or Waiver.  Terminate  or waive any right of  substantial
          value, other than in the ordinary course of business;

     (l)  Employee Benefit Plans;  New Hires; Pay Increases.  Adopt or amend any
          employee  benefit or stock  purchase or option  plan,  or hire any new
          officer level employee,  or increase the salaries or wage rates of its
          employees except in the ordinary course of business in accordance with
          its standard past practice;

     (m)  Severance Arrangements.  Grant any severance or termination pay (i) to
          any  director  or  officer  or (ii) to any other  employee  except (A)
          payments made pursuant to written  agreements  outstanding on the date
          hereof or (B) grants which are made in the ordinary course of business
          in accordance with its standard past practice;

     (n)  Lawsuits. Commence a lawsuit other than (i) for the routine collection
          of bills,  (ii) in such cases where it in good faith  determines  that
          failure to commence suit would result in the material  impairment of a
          valuable aspect of its business;

     (o)  Acquisitions.  Acquire or agree to acquire by merging or consolidating
          with, or by  purchasing a substantial  portion of the assets of, or by
          any  other  manner,  any  business  or any  corporation,  partnership,
          association or other business  organization  or division  thereof,  or
          otherwise  acquire or agree to acquire any assets which are  material,
          individually    or   in    the    aggregate,    to   its    and    its
          parent's/subsidiaries' business, taken as a whole;

                                       2
<PAGE>

     (p)  Taxes.  Other than in the ordinary course of business,  make or change
          any  material  election  in  respect  of taxes,  adopt or  change  any
          accounting method in respect of Taxes, file any material tax return or
          any  amendment  to a  material  tax  return,  enter  into any  closing
          agreement,  settle  any  material  claim or  assessment  in respect of
          Taxes, or consent to any extension or waiver of the limitation  period
          applicable to any material claim or assessment in respect of taxes;

     (r)  Revaluation.  Revalue any of its assets,  including without limitation
          writing  down the value of  inventory or writing off notes or accounts
          receivable other than in the ordinary course of business; or

     (s)  Other. Take or agree in writing or otherwise to take, any action which
          would cause a material  breach of its  representations  or  warranties
          contained in any agreement or prevent it from materially performing or
          cause it not to materially perform its covenants thereunder.

     3.  Assignment;  Binding  Effect.  Subject to  termination  as  provided in
Section 7, this Agreement  shall be binding on the Parties and their  respective
legal  representatives,  successors  and assigns and on the  transferees  of any
Shares now owned or hereafter acquired by them.

     4. Entire Agreement;  Waiver.  This Agreement  contains the sole and entire
understanding of the Parties with respect to its subject matter.  This Agreement
may not be changed or  terminated or any  performance  or condition  waived,  in
whole or in part, except by agreement in writing signed by all of the Parties.

     5.  Counterparts.   This  Agreement  may  be  executed  in  more  than  one
counterpart,  each of  which  shall  be  deemed  to be an  original  and  which,
together, shall constitute one and the same instrument.

     6.  Applicable  Law. This Agreement shall be governed by, and construed and
enforced  in  accordance  with,  the  substantive  laws of The  Commonwealth  of
Massachusetts, without regard to its principles of conflicts of laws.

     7.  Legend.  Each  certificate  for Shares  shall bear a legend  stating in
substance as follows:

     "The  rights of any  holders of these  shares are  subject to the terms and
     provisions of a Voting  Agreement  dated March 2, 2000 among  VerticalBuyer
     and certain shareholders of VerticalBuyer.  Copies of such agreement may be
     obtained   without  charge  upon  written   request  to  the  secretary  of
     VerticalBuyer."

     8.  Termination.  This Agreement shall terminate and be of no further force
and effect upon the exercise  redemption or expiration of all of the outstanding
Common Stock  Purchase  Warrants of  VerticalBuyer  issued to CSPI and dated the
date hereof  providing for the  purchase,  subject to  adjustment,  of 3,000,000
shares of VerticalBuyer's Common Stock.

     IN WITNESS  WHEREOF,  this  Agreement has been duly executed as of the date
first above written.

                                   VERTICALBUYER, INC.

                                   By: /s/Tim Rosen
                                       ---------------------
                                         Tim Rosen,
                                         President

                                            CSPI, INC.

                                   By: /s/Alexander Lupinetti
                                       ------------------------
                                         Alexander Lupinetti,
                                         Chief Executive Officer

                           /s/Tim Rosen                /s/Leslie Kent
                           ---------------------       -----------------
                              Tim Rosen               Leslie Kent

                                       3
<PAGE>




                                   CONSENT


     We,  Leslie  Sufrin and Company,  P. C.,  hereby  consent to the use of our
report dated March 13, 2000,  relating to the audited  financial  statements for
period from inception (May 13, 1999) to December 31, 1999 of Lightseek,  Limited
in a  registration  statement  on SB-2 of  VerticalBuyer,  to be filed  with the
Securities and Exchange Commission.


March 28, 2000

                                       /s/Leslie Sufrin and Company, P. C.
                                       -----------------------------------
                                       Leslie Sufrin and Company, P. C.







                                 Exhibit 23.2



                         Consent of Roger L. Fidler, Esq.






                                   CONSENT


     I, Roger L. Fidler, hereby consent to the use of my opinion dated March 28,
2000, and  my name under the caption  "Legal  Matters" in the SB-2  Registration
Statement and prospectus, and any amendments thereto, of VerticalBuyer,  Inc. to
be filed with the Securities and Exchange Commission.






                                             /s/Roger L. Fidler
                                             ---------------------
                                             Roger L. Fidler



    Dated: March 28, 2000









<TABLE> <S> <C>



<ARTICLE>                   5
<LEGEND>
           Financial Data Schedule December 31, 1999
</LEGEND>
<CIK>                 0001109879
<NAME>                Lightseek Limited (A United Kingdom Corporation)


<S>                             <C>
<PERIOD-TYPE>                   8-MOS
<FISCAL-YEAR-END>                              DEC-31-1999
<PERIOD-START>                                 May-13-1999
<PERIOD-END>                                   Dec-31-1999
<CASH>                                          20,000
<SECURITIES>                                         0
<RECEIVABLES>                                        0
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                                 9,156
<PP&E>                                          46,382
<DEPRECIATION>                                  (7,729)
<TOTAL-ASSETS>                                  47,809
<CURRENT-LIABILITIES>                           71,467
<BONDS>                                              0
                                0
                                          0
<COMMON>                                         1,615
<OTHER-SE>                                     (25,273)
<TOTAL-LIABILITY-AND-EQUITY>                    47,809
<SALES>                                         21,945
<TOTAL-REVENUES>                                21,945
<CGS>                                           22,025
<TOTAL-COSTS>                                   47,218
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                      0
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (25,273)
<EPS-BASIC>                                       0.00
<EPS-DILUTED>                                     0.00






</TABLE>


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