ONHEALTH NETWORK CO
8-K/A, EX-2, 2000-08-04
PREPACKAGED SOFTWARE
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                                                                     EXHIBIT 2.1



                      AGREEMENT AND PLAN OF REORGANIZATION


         AGREEMENT  AND PLAN OF  REORGANIZATION,  DATED AS OF November  19, 1999
(this  "AGREEMENT"),  by  and  among  OnHealth  Network  Company,  a  Washington
corporation  ("ONHEALTH"),  HDISub,  Inc., a Colorado  corporation  and a wholly
owned subsidiary of OnHealth  ("HDISUB"),  DMISub,  Inc., a Colorado corporation
and wholly owned  subsidiary of OnHealth  ("DMISUB" and  collectively,  together
with  HDISub,  the  "SUBS"),  Health  Decisions,  Inc.,  a Colorado  corporation
("HDI"),  Demand  Management,  Inc.,  a  Colorado  corporation  ("DMI"),  Health
Decisions International,  LLC, a Colorado limited liability company (the "LLC"),
Donald M. Vickery, as the sole shareholder of HDI and DMI (the "SHAREHOLDER").

                                    RECITALS

         WHEREAS, HDI and DMI are the sole members and interest holders of the
 LLC; and

         WHEREAS,  OnHealth  and the  LLC  intend  to  enter  into an  agreement
whereby,  through the merger of two wholly owned  subsidiaries  of OnHealth with
HDI and  DMI,  OnHealth  will be the  sole  shareholder  of HDI and DMI and as a
result the owner of all of the  ownership  interests in the LLC. For purposes of
this  Agreement,  HDI,  DMI and the LLC shall be  referred  to as the  "ACQUIRED
COMPANIES."

         NOW THEREFORE,  INTENDING TO BE LEGALLY BOUND,  and in consideration of
the  premises  and  the  mutual  representations,   warranties,   covenants  and
agreements contained herein, OnHealth, HDISub, DMISub, HDI, DMI, the LLC and the
Shareholder hereby agree as follows:

                                    ARTICLE I
                                   THE MERGERS

         1.1 EFFECTIVE  TIME OF THE MERGERS.  Subject to the  provisions of this
Agreement,  HDISub  will be merged  into HDI and DMISub  will be merged into DMI
(the  "MERGERS").  Articles  of Merger,  Agreements  and Plans of Merger and any
other required documents (collectively the "MERGER DOCUMENTS"), substantially in
the forms attached as Exhibits 1.1 and 1.2 shall be duly prepared,  executed and
acknowledged by OnHealth,  HDISub,  DMISub,  HDI, DMI and the  Shareholder,  and
thereafter  delivered  to the  Secretary  of State of Colorado  for  filing,  as
provided  in the  Colorado  Business  Corporation  Act (the  "CBCA")  as soon as
practicable on or after the  satisfaction  or waiver of the conditions set forth
in Article VI. The Mergers  shall  become  effective  at such time as the Merger
Documents  have  been  filed  with  the  Secretary  of State  of  Colorado  (the
"EFFECTIVE  TIME").  Solely for  purposes  of  clarification,  HDI,  DMI and the
Shareholder  acknowledge  and agree that the  obligation  of  OnHealth  to issue
shares under this  Agreement  shall not be  effective  until the Merger has been
confirmed in writing by the Secretary of State of the State of Colorado.

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<PAGE>


         1.2 CLOSING. The closing of the Mergers (the "CLOSING") will take place
on the date of the execution of this Agreement  subject to the  satisfaction  or
waiver of the  conditions set forth in Article IV (the "CLOSING  DATE"),  at the
offices of Preston Gates & Ellis LLP, Seattle, Washington,  unless another time,
date or place is agreed to by the parties hereto.

         1.3 EFFECTS OF THE MERGERS.  At the Effective Time: (i) HDISub shall be
merged with and into HDI (HDI after the Merger is  sometimes  referred to herein
as the "HDI SURVIVING CORPORATION") (ii) DMISub will be merged with and into DMI
(DMI  after the Merger is  sometimes  referred  to herein as the "DMI  SURVIVING
CORPORATION"),  (ii) the Articles of  Incorporation  of HDI and DMI shall be the
Articles of Incorporation of the HDI Surviving Corporation and the DMI Surviving
Corporation,  respectively,  (iii) the Bylaws of HDI and DMI shall be the Bylaws
of  the  HDI  Surviving   Corporation   and  the  DMI   Surviving   Corporation,
respectively,  (iv) the directors of HDISub and DMISub shall be the directors of
the HDI Surviving Corporation and the DMI Surviving  Corporation,  respectively,
(v) the officers of HDISub and DMISub shall be the officers of the HDI Surviving
Corporation and the DMI Surviving Corporation, respectively, (vi) the issued and
outstanding  capital  stock of HDI and DMI  shall be  converted  as set forth in
Section 1.4 below,  and (vii) the Mergers  shall,  from and after the  Effective
Time, have all the effects provided by the CBCA.

         1.4 CONVERSION OF HDI AND DMI SHARES. At the Effective Time, all of the
outstanding  shares  of  common  stock,  no par value per share of HDI (the "HDI
SHARES") and all of the  outstanding  shares of common  stock,  no par value per
share of DMI (the "DMI SHARES")  shall be converted into shares of common stock,
par value $.01 per share, of OnHealth ("ONHEALTH COMMON SHARES"). The HDI Shares
shall be converted into OnHealth Common Shares based on the "HDI EXCHANGE RATIO"
determined  by (i)  dividing the HDI  Purchase  Price (as defined  below) by the
number of HDI Shares  outstanding as of the Closing and (ii) dividing the number
determined in (i) above by the OnHealth  Average Price.  The DMI Shares shall be
converted into OnHealth Common Shares based on the "DMI EXCHANGE RATIO"
  determined  by (y) dividing the DMI Purchase  Price (as defined  below) by the
number of DMI Shares  outstanding  as of the Closing and (z) dividing the number
determined in (y) above by the OnHealth  Average  Price.  The purchase price for
HDI shall be OnHealth  Common Shares  representing  seventy percent (70%) of the
Final Valuation (the "HDI PURCHASE PRICE"),  the purchase price for DMI shall be
thirty percent (30%) of the Final Valuation (the "DMI PURCHASE PRICE"). Schedule
1.4 sets forth the outstanding  securities of both HDI and DMI,  together with a
pro forma  determination of the number of OnHealth Common Shares to be issued in
the Mergers pursuant to the HDI and DMI Exchange Ratios and shall be revised and
updated as of the Closing Date.  The "ONHEALTH  AVERAGE PRICE" is the average of
the closing  prices of the OnHealth  Common Shares on the Nasdaq  National Stock
Market over the five trading days ending one day prior to the Closing.

         1.5 FINAL  VALUATION.  For purposes of this Agreement,  the term "FINAL
VALUATION"  shall mean $12 million less the amount,  if any, that the Net Assets
of the  Acquired  Companies  as of the Closing  Date are less than the  Acquired
Companies Net Assets as reflected on their  September 30, 1999 Balance Sheet (as
combined  and,  with regard to HDI and DMI,  only  taking into  account the note
payable to G.D. Searle, & Co.). For purposes hereof, "Net Assets" shall mean the
total  assets less total  liabilities  of the  Acquired  Companies  in each case

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<PAGE>

excluding any indebtedness of any of the Acquired  Companies owed to Vickery and
any  liabilities  incurred  by Acquired  Companies  in  connection  with (i) the
Humana, Inc. ("HUMANA")contract after September 30, 1999 or (ii) the $352,000 of
indebtedness  of the LLC  payable  to its  employees  and former  employees.  At
Closing,  OnHealth  will cause the LLC to pay to Vickery up to  $200,000 in full
satisfaction of all outstanding  notes or other evidences of indebtedness of any
of the Acquired Companies to Vickery.

         1.6 HUMANA RESTRICTED SHARES.  OnHealth Common Shares issuable pursuant
to this  Agreement at the Closing  having a value of $1.8 million  (based on the
OnHealth  Average Price and rounded to the closest  OnHealth Common Share) shall
be  restricted  and shall be  subject  to  forfeiture  in the  event a  mutually
acceptable and legally  enforceable  contract with Humana is not executed within
nine (9) months from the Closing Date (the "Humana  Restricted  Shares") and the
Shareholder hereby agrees not to sell, assign, transfer, pledge, hypothecate, or
otherwise  dispose of, by operation of law or otherwise,  such Humana Restricted
Shares except as permitted by this Agreement.

         1.7 ESCROW SECURITIES. To secure claims by OnHealth for indemnification
pursuant to Article VII,  $1.2 million of the OnHealth  Common  Shares  issuable
pursuant to this Agreement,  determined  based on the OnHealth Average Price and
rounded to the nearest  OnHealth Common Share,  shall be held in escrow ("ESCROW
SHARES") pursuant to the Escrow Agreement attached as Exhibit 1.7  ("ESCROW
AGREEMENT"). Execution of the Escrow Agreement by the Shareholder is a condition
to  receiving  OnHealth  Common  Shares.  One half of the Escrow  Shares will be
released  on the six month  anniversary  of the Closing  Date,  with the balance
released on the one year anniversary of the Closing Date.

         1.8  DELIVERY  OF  CERTIFICATES.  At  the  Closing,  each  holder  of a
certificate or other documentation  representing HDI Shares and DMI Shares shall
surrender such  certificates or other  documentation to OnHealth,  together with
duly executed  counterparts  of the Investment  Agreement (as defined in Section
5.1) and Escrow  Agreement and such other duly executed  documentation as may be
reasonably  required  by OnHealth  to comply  with  applicable  laws to effect a
transfer  of such  shares  and upon such  surrender  each  Shareholder  shall be
entitled to receive a  certificate  or other  documentation  for the  applicable
number  of  OnHealth  Common  Shares  calculated  pursuant  to this  Article  I.
Execution and delivery of an Escrow Agreement and Investment  Agreement shall be
a condition  precedent  to the issuance of the  OnHealth  Common  Shares to each
Shareholder pursuant to the Mergers.

         1.9  TAX-FREE  REORGANIZATION.   The  Mergers  are  intended  to  be  a
"REORGANIZATION"  within the meaning of Section 368 of the Internal Revenue Code
of 1986, as amended (the "CODE"), and this Agreement is intended to constitute a
"PLAN OF REORGANIZATION" within the meaning of the regulations promulgated under
Section 368 of the Code.


         1.10 NO FURTHER  OWNERSHIP  RIGHTS IN HDI AND DMI SHARES.  All OnHealth
Common  Shares  issued at the  Effective  Time in  exchange  for the HDI and DMI
Shares in accordance with the terms hereof shall  respectively be deemed to have
been delivered in full  satisfaction of all rights pertaining to the HDI and DMI
Shares.



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<PAGE>


         1.11     REGULATION D AND FORM S-3 REGISTRATION STATEMENT.

                  1.11.1  REGULATION  D  OFFERING.   Each  person  who  receives
OnHealth  Common  Shares  at the  Closing  shall  execute a  counterpart  to the
Investment  Agreement and such other documents as may be reasonably  required by
OnHealth to determine such holder's  qualification as an "ACCREDITED  INVESTOR,"
as that term is defined in Rule 501 of Regulation D under the  Securities Act of
1933 (the "1933 ACT") or as a person with the financial  sophistication required
to be a purchaser pursuant to Rule 506(b)(2)(ii) of Regulation D.

                  1.11.2 S-3 REGISTRATION STATEMENT. To the extent that OnHealth
is not able to issue to Shareholder OnHealth Common Shares that are subject to a
currently effective registration  statement,  within fifteen (15) days after the
Closing,  OnHealth  shall  prepare,  and file with the  Securities  and Exchange
Commission a registration statement on Form S-3 (such registration statement and
the  prospectus  included  therein being referred to as the "S-3") for resale of
those unregistered OnHealth Common Shares issued in, and in connection with, the
Mergers  (collectively,  the "NEW  ONHEALTH  HOLDERS")  provided  that  such New
OnHealth Holders  provided  OnHealth with all reasonably  requested  information
required  to be included by selling  shareholders  under the 1933 Act.  OnHealth
shall use its  commercially  reasonable  best  efforts to have the S-3  declared
effective  under the 1933 Act as  promptly  as  practicable  after such  filing.
OnHealth shall use its commercially  reasonable best efforts to cause the S-3 to
continue to be effective the registration statement and the prospectus contained
therein to be updated as reasonably  deemed  necessary by OnHealth to enable the
New  OnHealth  Holders to resell the  OnHealth  Common  Shares  that were issued
pursuant  to this  Agreement,  provided  that such  resales  shall take place in
regular  brokers'  transactions,  at customary  brokers'  commissions,  over the
Nasdaq Stock Market or such other national  market as OnHealth Common Shares may
be traded.  OnHealth  shall also take any action  required to be taken under any
applicable  state  securities  laws in connection  with the issuance of OnHealth
Common Shares pursuant to this Agreement and the resale of those shares pursuant
to the S-3. Any New OnHealth Holder selling stock registered under the S-3 shall
indemnify  OnHealth,  its officers and directors,  each  underwriter and selling
broker, if any, and each person, if any, who controls  OnHealth,  against Losses
(including  liability  under the 1933 Act and the Securities and Exchange Act of
1934 ("1934 ACT")) arising by reason of any statement contained in the S-3, that
such New OnHealth Holder  provided to OnHealth in writing  explicitly for use in
the S-3,  being  false or  misleading  or  omitting  to  state a  material  fact
necessary  to be stated in order  that the  statements  made in the S-3,  in the
circumstances  in  which  they  are  made,  not be  misleading.  OnHealth  shall
indemnify each New OnHealth Holder selling stock  registered  under the S-3, and
each underwriter and selling broker, if any, against Losses (including liability
under the 1933 and 1934 Acts) arising by reason of any  statement  (other than a
statement  provided  by any  New  OnHealth  Holder  as  described  above)  in or
incorporated  by reference in the S-3 being false or  misleading  or omitting to
state a material fact necessary to be stated in order that the  statements  made
in or incorporated by reference in the S-3, in the  circumstances  in which they
are made,  not be misleading.  After the SEC has declared the S-3 effective,  if
the  OnHealth  board of  directors  reasonably  determines  that that sales made
pursuant to the  prospectus  contained  within the S-3 may not be made under the
1933 Act,  OnHealth may suspend sales of OnHealth  Common Shares pursuant to the


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<PAGE>


S-3 (a "BLACKOUT PERIOD").  A Blackout period may not exceed 45 trading days and
no more than two Blackout  Periods may commence in any period of 365 consecutive
days. The  obligations of OnHealth  pursuant to this Section 1.11.2 shall expire
on the  earlier  of (i) the sale or  other  disposition  of all of the  OnHealth
Shares issued in the Mergers (including OnHealth Common Shares released pursuant
to the Escrow  Agreement)  or (ii) the  ability of all New  OnHealth  Holders to
dispose of all such shares  within a single three (3) month  period  pursuant to
Rule 144 of the 1933 Act.

         1.12 PAYMENTS MADE ON BEHALF OF ACQUIRED  COMPANIES AT CLOSING.  At the
Closing,  OnHealth  Common  Shares (or options in the case of the  employees and
former employees)  otherwise  issuable in the Mergers shall be delivered to G.D.
Searle & Co.,  George  K.  Baum &  Company  and  certain  employees  and  former
employees of the Acquired Companies, on behalf of the Acquired Companies, in the
amounts as set forth on Schedule 1.4.


                                   ARTICLE II
                         REPRESENTATIONS AND WARRANTIES

         2.1 REPRESENTATIONS  AND WARRANTIES OF HDI AND THE SHAREHOLDER.  Except
as disclosed in a document  referring  specifically to the  representations  and
warranties in this Agreement  which  identifies by section number the section to
which such  disclosure  relates and is delivered by HDI and the  Shareholder  to
OnHealth  prior  to  the  execution  of  this  Agreement  (the  "HDI  DISCLOSURE
Schedule"),  and whether or not the HDI Disclosure  Schedule is referred to in a
specific section, HDI and the Shareholder,  jointly and severally, represent and
warrant to OnHealth and the Subs as follows:

                  2.1.1  ORGANIZATION,  STANDING AND POWER. HDI is a corporation
duly organized and validly existing under the laws of the state of Colorado, has
all requisite  corporate power and corporate authority to own, lease and operate
its  properties and to carry on its  businesses as now being  conducted,  and is
duly qualified and in good standing to do business in each jurisdiction in which
a failure to so qualify  would have a material  adverse  effect on the  Business
Condition (as hereinafter defined) of HDI. As used in this Agreement,  "BUSINESS
CONDITION"  with  respect  to any  entity  shall  mean the  business,  financial
condition,  results  of  operations,  assets or  prospects  (as  defined  below)
(without  giving  effect to the  Mergers) of such  entity or entities  including
Subsidiaries  taken as a whole.  HDI has no Subsidiaries.  In this Agreement,  a
"SUBSIDIARY"   of  any   corporation   or  other  entity  means  a  corporation,
partnership, limited liability company or other entity of which such corporation
or entity  directly or indirectly  owns or controls  voting  securities or other
interests  which are sufficient to elect a majority of the Board of Directors or
other managers of such  corporation,  partnership,  limited liability company or
other  entity  and  "PROSPECTS"   shall  mean  events,   conditions,   facts  or
developments which are known to HDI and which in the reasonable course of events
are expected to have a material  effect on future  operations of the business as
presently  conducted by HDI. References to HDI shall include all Subsidiaries of
HDI, except the LLC, unless the context specifically  indicates  otherwise.  HDI
has delivered to OnHealth  complete and correct copies of the articles,  bylaws,
and/or  other  primary  charter  and  organizational   documents  ("HDI  CHARTER

                                       5
<PAGE>


DOCUMENTS")  of HDI,  in each case,  as amended to the date  hereof.  The minute
books and stock  records of HDI  contain  correct  and  complete  records of all
material  proceedings  and  actions  taken at all  meetings  of, or  effected by
written consent of, the  shareholder of HDI and its Board of Directors,  and all
original issuances and subsequent transfers,  repurchases,  and cancellations of
HDI's capital stock. The HDI Disclosure Schedule contains a complete and correct
list of the officers and directors of HDI.

                  2.1.2    CAPITAL STRUCTURE.

                           (a)     The authorized capital stock of HDI consists
of 1,000,000 HDI Shares,  no par value per share, of which 50,000 HDI Shares are
issued and outstanding. As of the date hereof, no HDI Common Shares are reserved
for issuance upon the exercise of outstanding HDI warrants or options.  No other
shares  of  capital  stock,  other  than  the  HDI  Shares  are  outstanding  or
authorized.

                           (b)     All  outstanding   HDI  Shares  are  validly
issued,  fully paid,  nonassessable and not subject to any preemptive rights, or
to any agreement to which HDI is a party or by which HDI may be bound. Except as
set  forth  in this  Agreement,  there  are not any  options,  warrants,  calls,
conversion   rights,   commitments,   agreements,   contracts,   understandings,
restrictions, arrangements or rights of any character to which HDI is a party or
by which HDI may be bound obligating HDI to issue,  deliver or sell, or cause to
be issued,  delivered or sold, additional shares of the capital stock of HDI, or
obligating HDI to grant,  extend or enter into any such option,  warrant,  call,
conversion  right,   conversion  payment,   commitment,   agreement,   contract,
understanding,  restriction, arrangement or right. HDI does not have outstanding
any bonds, debentures, notes or other indebtedness the holders of which (i) have
the right to vote (or  convertible or  exercisable  into  securities  having the
right to vote) with holders of HDI Shares on any matter  ("HDI VOTING  DEBT") or
(ii) are or will  become  entitled  to  receive  any  payment as a result of the
execution of this Agreement or the completion of the  transactions  contemplated
hereby.

                  2.1.3 AUTHORITY.  The execution,  delivery, and performance of
this  Agreement by HDI has been duly  authorized by all necessary  action of the
Board of Directors of HDI.  Certified  copies of the resolutions  adopted by the
Board of Directors of HDI approving  this Agreement have been, or at the Closing
will be,  provided to  OnHealth.  Each of HDI and the  Shareholder  has duly and
validly executed and delivered this Agreement,  and this Agreement constitutes a
valid, binding, and enforceable obligation of each of the Shareholder and HDI in
accordance  with its terms,  except as enforcement  may be limited by applicable
bankruptcy,  insolvency,  reorganization,  moratorium, or similar laws affecting
the enforcement of creditors'  rights generally and except that the availability
of the equitable remedy of specific  performance or injunctive relief is subject
to the discretion of the court before which any proceeding may be brought.

                  2.1.4 COMPLIANCE WITH LAWS AND OTHER  INSTRUMENTS.  HDI holds,
and at all times has held, all licenses,  permits,  and authorizations  from all
Governmental  Entities,  (as defined below)  necessary for the lawful conduct of
its business pursuant to all applicable statutes,  laws,  ordinances,  rules and

                                       6
<PAGE>


regulations of all such authorities  having  jurisdiction over it or any part of
its operations,  excepting,  however, when such failure to hold would not have a
material adverse effect on HDI's Business Condition.  There are no violations or
claimed violations known by HDI or the Shareholder of any such license,  permit,
or  authorization  or any such  statute,  law,  ordinance,  rule or  regulation.
Neither the execution and delivery of this Agreement by HDI and the  Shareholder
nor the performance by HDI and the Shareholder of their  obligations  under this
Agreement will, in any material  respect,  violate any provision of laws or will
conflict with,  result in the material  breach of any of the terms or conditions
of,  constitute  a  material  breach  of any  of the  terms  or  conditions  of,
constitute a material  default  under,  permit any party to accelerate any right
under, renegotiate,  or terminate,  require consent,  approval, or waiver by any
party under,  or result in the  creation of any lien,  charge,  encumbrance,  or
restriction upon any of the properties,  assets,  or HDI Shares pursuant to, any
of the HDI Charter Documents or any agreement (including government  contracts),
indenture,  mortgage,  franchise,  license, permit, lease or other instrument of
any kind to which HDI is a party or by which  HDI or any of its  assets is bound
or affected.  No consent,  approval,  order or authorization of or registration,
declaration or filing with or exemption (collectively "CONSENTS") by, any court,
administrative   agency  or  commission  or  other  governmental   authority  or
instrumentality,  whether domestic or foreign (each a "GOVERNMENTAL  ENTITY") is
required by or with respect to HDI in connection with the execution and delivery
of  this  Agreement  by  HDI  or the  consummation  by  HDI of the  transactions
contemplated  hereby,  except for the filing of the appropriate Merger Documents
with the  Secretary  of State of the state of Colorado and except for such other
Consents  and for such other  Consents,  which if not obtained or made would not
have a material adverse effect on HDI's Business Condition.

                  2.1.5    TECHNOLOGY AND INTELLECTUAL PROPERTY RIGHTS.

                  (a)      The  "HDI  Intellectual  Property"  consists  of  the
following:

                                    (i)     all  patents,   trademarks,   trade
names,  service  marks,  mask works,  domain names,  copyrights  and any renewal
rights,  applications and registrations for any of the foregoing,  and all trade
dress, net lists,  schematics,  technology,  manufacturing  processes,  supplier
lists,  trade secrets,  know-how,  moral rights,  computer  software programs or
applications (in both source and object code form) owned by HDI;

                                    (ii)   all    goodwill    associated    with
trademarks, trade names service marks and trade dress owned by HDI;

                                    (iii) all software  and  firmware  listings,
and updated  software  source  code,  and  complete  system  build  software and
instructions related to all software described herein owned by HDI;

                                    (iv)  all   documents,   records  and  files
relating to design,  end user  documentation,  manufacturing,  quality  control,
sales,  marketing or customer  support for all intellectual  property  described
herein owned by HDI;

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<PAGE>


                                    (v)   all  other  tangible  or  intangible
proprietary information and materials owned by HDI; and

                                    (vi) all  license  and  other  rights in any
third party product,  intellectual  property,  proprietary  or personal  rights,
documentation,  or tangible or intangible property, including without limitation
the types of  intellectual  property  and tangible  and  intangible  proprietary
information described in (i) through (v) above;

that are being,  and/or have been, used, or are currently under  development for
use,  in the  business  of HDI as it has  been,  is  currently  or is  currently
anticipated  to be (up to the Closing),  conducted.  HDI  Intellectual  Property
described  in  clauses  (i) to (v) above is  referred  to  herein as "HDI  OWNED
INTELLECTUAL  PROPERTY" and HDI Intellectual  Property  described in clause (vi)
above is  referred to herein as "HDI  LICENSED  INTELLECTUAL  PROPERTY".  Unless
otherwise  noted, all references to "HDI  Intellectual  Property" shall refer to
both HDI Owned Intellectual Property and HDI Licensed Intellectual Property.

                           (b)  The  HDI  Disclosure  Schedule  lists:  (i)  all
patents,  registered copyrights,  mask works,  trademarks,  service marks, trade
dress,  any renewal rights for any of the foregoing,  and any  applications  and
registrations  for any of the  foregoing,  that are  included  in the HDI  Owned
Intellectual  Property;  (ii) all hardware products and tools, software products
and  tools,  and  services  that  are  currently  published,  offered,  or under
development  by HDI;  (iii) all licenses,  sublicenses  and other  agreements to
which HDI is a party and  pursuant to which any other  person is  authorized  to
have access to or use the HDI Owned Intellectual  Property or exercise any other
right with regard thereto;  (iv) all HDI Licensed  Intellectual  Property (other
than  license   agreements  for  standard  "shrink  wrapped,   off  the  shelf,"
commercially  available,  third  party  products  used by the HDI);  and (v) any
obligations   of   exclusivity,   noncompetition,   nonsolicitation,   or  first
negotiation  to which  HDI is  subject  under any  agreement  that does not fall
within the ambit of (iii) or (iv) above.

                           (c)  The HDI Intellectual Property consists solely of
items and rights that are either:  (i) owned by HDI, (ii) in the public  domain,
or  (iii)  rightfully  used  and  authorized  for use by HDI and its  successors
pursuant to a valid  license or other  agreement.  HDI has all rights in the HDI
Intellectual  Property  reasonably  necessary  to carry out HDI's  current,  and
anticipated  future (up to the Closing)  activities and has or had all rights in
the HDI  Intellectual  Property  reasonably  necessary to carry out HDI's former
activities,  including  without  limitation,  if  necessary  to  carry  out such
activities,  rights to make, use, exclude others from using, reproduce,  modify,
adapt,  create  derivative works based on, translate,  distribute  (directly and
indirectly),  transmit,  display and perform  publicly,  license,  rent,  lease,
assign, and sell the HDI Intellectual  Property in all geographic  locations and
fields  of use,  and to  sublicense  any or all such  rights  to third  parties,
including  the right to grant  further  sublicenses.  All  software and firmware
listings  that are part of the HDI Owned  Intellectual  Property are  adequately
commented in accordance with current software industry standards.

                           (d)  HDI is not, nor as a result of the execution or
delivery of this Agreement, or performance of HDI's obligations hereunder, will


                                       8
<PAGE>

HDI be, in violation of any license,  sublicense or other agreement  relating to
the HDI Intellectual Property to which HDI is a party or otherwise bound. Except
pursuant to the terms of the agreements  listed in the HDI Disclosure  Schedule,
HDI  is not  obligated  to  provide  any  consideration  (whether  financial  or
otherwise) to any third party, nor is any third party otherwise  entitled to any
consideration,  with respect to any exercise of rights by HDI or its  successors
in the HDI Intellectual Property.

                           (e)  The    use,    reproduction,    modification,
distribution,  licensing, sublicensing, sale, or any other exercise of rights in
any HDI Owned Intellectual  Property or any other authorized  exercise of rights
in or to the HDI Owned  Intellectual  Property by HDI or its licensees  does not
and, to HDI's knowledge, will not infringe any copyright,  patent, trade secret,
trademark,  service mark, trade name, firm name,  logo, trade dress,  mask work,
moral right,  other  intellectual  property  right,  right of privacy,  right of
publicity  or right in  personal or other data of any  person.  Further,  to the
knowledge of HDI, the use, reproduction,  modification, distribution, licensing,
sublicensing,  sale,  or any  other  exercise  of  rights  in any  HDI  Licensed
Intellectual  Property or any other  authorized  exercise of rights in or to the
HDI Licensed Intellectual Property by HDI or its licensees does not and will not
infringe any copyright,  patent,  trade secret,  trademark,  service mark, trade
name, firm name, logo, trade dress, mask work, moral right,  other  intellectual
property  right,  right of privacy,  right of  publicity or right in personal or
other data of any person. No claims (i) challenging the validity, effectiveness,
or ownership by HDI of any of the HDI Owned  Intellectual  Property,  or (ii) to
the   effect   that  the   use,   reproduction,   modification,   manufacturing,
distribution,  licensing,  sublicensing, sale or any other exercise of rights in
any HDI Owned Intellectual  Property by HDI or its licensees infringes,  or will
infringe on, any intellectual property or other proprietary or personal right of
any person,  have been asserted or, to the  knowledge of HDI, are  threatened by
any person nor, to the  knowledge  of HDI,  are there any valid  grounds for any
bona fide claim of any such kind.  All granted or issued  patents and mask works
and all  registered  trademarks  listed on the HDI  Disclosure  Schedule and all
copyright  registrations held by HDI are valid,  enforceable and subsisting.  To
the  knowledge  of  HDI,  there  is  no   unauthorized   use,   infringement  or
misappropriation  of any of the HDI  Owned  Intellectual  Property  by any third
party, employee or former employee.

                           (f)  No parties other than HDI possess any current or
contingent rights to any source code that is part of the HDI Owned  Intellectual
Property (including, without limitation, through any escrow account).

                           (g)  The HDI Disclosure  Schedule lists  all  parties
who have created any material portion of, or otherwise have any rights in or to,
the HDI Owned  Intellectual  Property  other  than  employees  of HDI whose work
product was created by them entirely within the scope of their employment by HDI
and  constitutes  works made for hire  owned by HDI.  HDI has  secured  from all
parties who have created any material  portion of, or otherwise  have any rights
in or to, the HDI Owned  Intellectual  Property  valid and  enforceable  written
assignments or licenses of any such work or other rights to HDI and has provided
true and complete copies of such assignments or licenses to OnHealth.

                           (h)  The HDI  Disclosure Schedule includes a true and
complete  list of  support  and  maintenance  agreements  relating  to HDI Owned
Intellectual Property or to which HDI is a party as to HDI Licensed Intellectual

                                       9

<PAGE>

Property  including the identity of the parties and the respective dates of such
agreements and remedies for their breach.

                           (i)  HDI  has  obtained  legally  binding   written
agreements  from  all  third  parties  with  whom  HDI has  shared  confidential
proprietary  information  (i) of HDI, or (ii)  received from others which HDI is
obligated to treat as confidential,  which agreements require such third parties
to keep such information confidential.

                           (j)  HDI has obtained any and all necessary  consents
from consumers with regard to the HDI's collection and dissemination of personal
consumer information in accordance with HDI's privacy policy as published on its
website.  HDI's practices  regarding the collection and use of consumer personal
information  are in  accordance  with HDI's  privacy  policy as published on its
website.

                           (k)  The HDI Owned Intellectual  Property is, and any
products  manufactured  and  commercially  released  by HDI or  currently  under
development, are fully Year 2000 Compliant in all material respects and will not
cease to be fully Year 2000 Compliant in any material  respect at any time prior
to, during or after the calendar year 2000. To the best of HDI's knowledge,  the
HDI Licensed  Intellectual Property is fully Year 2000 Compliant in all material
respects  and will not cease to be fully  Year 2000  Compliant  in any  material
respect at any time prior to, during or after the calendar  year 2000.  Schedule
2.1.5(k) sets forth the tests,  inquiries and other activities undertaken by HDI
up to Closing, with respect to the Year 2000 Compliant nature of any and all HDI
Licensed Intellectual Property.  For the purposes of this Agreement,  "YEAR 2000
COMPLIANT"  means that  neither the  performance  nor the  functionality  of the
applicable  HDI  Intellectual  Property  or  applicable  product  is or  will be
materially affected by dates prior to, during or after the calendar year 2000 AD
and in particular (but without limitation):

                                    (i)    such  HDI  Intellectual  Property or
product  accurately  receives,  provides  and  processes,  and  will  accurately
receive, provide and process,  date/time data (including calculating,  comparing
and sequencing) from, into and between the twentieth and twenty-first centuries,
including calendar years 1999 and 2000;

                                    (ii)   such  HDI  Intellectual  Property  or
product will not  malfunction,  cease to function,  provide invalid or incorrect
results or cause any  interruption  in the operation of the business of HDI as a
result of any date/time data;
                                   (iii)   date-based  functionality of such HDI
Intellectual   Property  or  product   behaves  and  will   continue  to  behave
consistently for dates prior to, during and after the year 2000;

                                    (iv)   in all interfaces and data storage of
such HDI Intellectual  Property or product,  the century in any date is and will
be specified  either  explicitly or by  unambiguous  algorithms  or  inferencing
rules; and

                                       10
<PAGE>

                                     (v)    the  year  2000 is  and will  be
recognized as a leap year of such HDI Intellectual Property or product.

                  2.1.6 FINANCIAL  STATEMENTS.  HDI has delivered to OnHealth an
unaudited  balance  sheet as of September  30, 1999,  and the related  unaudited
statement of income for the nine months  ended  September  30, 1999  included in
Schedule  2.1.6 hereto (such balance sheet is referred to as the "HDI  FINANCIAL
STATEMENT").  Such HDI Financial Statement: (i) are in accordance with the books
and records of HDI, (ii) present fairly, in all material respects, the financial
position of HDI as of the date  indicated and the results of its  operations for
each of the periods  indicated,  and (iii) have been prepared in accordance with
generally accepted  accounting  principles  consistently  applied except (a) the
unaudited Financial Statements do not contain footnotes, and (b) as described in
the  HDI  Disclosure   Schedule.   There  are  no  material   off-balance  sheet
liabilities,  claims or obligations of any nature,  whether  accrued,  absolute,
contingent,  anticipated,  or otherwise,  whether due or to become due, that are
not  shown  or  provided  for  either  in the  Financial  Statements  or the HDI
Disclosure Schedule. The liabilities of HDI were incurred in the ordinary course
of HDI's business except as otherwise indicated in the HDI Disclosure  Schedule.
The "HDI PRO FORMA CLOSING BALANCE SHEET" included in Schedule 2.1.6 sets forth,
based on  reasonable  assumptions  relating  to the  operation  of the  business
conducted by HDI, the projected Balance Sheet as of the estimated Closing Date..
A "FINAL HDI PRO FORMA CLOSING BALANCE SHEET" will be prepared,  and any updates
or revisions of such statement will be prepared,  on a basis consistent with the
Financial  Statement (with the proviso that the Pro Forma Closing Balance Sheets
shall not be reviewed in accordance  with  applicable  standards of the American
Institute of Certified Public Accountants) and Schedule 2.1.6.

                  2.1.7 TAXES.  HDI has timely filed (or caused to be filed) all
federal,  state,  local  and  foreign  tax  returns,   reports  and  information
statements required to be filed by it, which returns, reports and statements are
true, correct and complete in all material respects, and paid all taxes required
to be paid by it as shown on such  returns,  reports and  statements.  All taxes
required to be paid in respect of the periods  covered by such returns  ("RETURN
PERIODS")  have either been paid or fully  accrued on the books of HDI.  HDI has
fully accrued on the HDI Financial Statements all of its unpaid taxes in respect
of all  periods (or the portion of any such  periods)  subsequent  to the Return
Periods, and will accrue on the Final Pro Forma Closing Balance Sheet all unpaid
taxes with respect to any period  ending  after June 30,  1999,  and through the
Closing Date. The books and records of the HDI have been kept on a tax basis. No
deficiencies or adjustments for any tax have been claimed, proposed or assessed,
or to the best of  HDI's  knowledge,  threatened.  The HDI  Disclosure  Schedule
accurately  sets forth the years for which HDI's  federal  and state  income tax
returns,  respectively,  have been audited and any years which, to the knowledge
of HDI, are the subject of a pending audit by the Internal  Revenue  Service and
the applicable state agencies. Except as so disclosed, HDI is not subject to any
pending or, to the best of HDI's knowledge, threatened, tax audit or examination
and HDI has not waived any statute of limitation  with respect to the assessment
of any tax which waiver remains in effect.  For the purposes of this  Agreement,
the terms "TAX" and "TAXES" shall include all federal,  state, local and foreign
taxes,  assessments,  duties,  tariffs,  registration  fees,  and other  similar
governmental  charges  including  without  limitation  all  income,   franchise,
property, production, sales, use, payroll, license, windfall profits, severance,

                                       11
<PAGE>

withholding,  excise,  gross receipts and other taxes,  as well as any interest,
additions  or  penalties  relating  thereto and any  interest in respect of such
additions or penalties. HDI has provided OnHealth true and correct copies of all
tax returns,  information,  statements,  reports, work papers and other tax data
reasonably  requested by OnHealth.  No consent or agreement  has been made under
Section 341 of the Code by or on behalf of HDI or any predecessor thereof.

         There are no liens for taxes  upon the  assets of HDI  except for taxes
that are not yet payable.  HDI has not  participated  in, or cooperated with, an
international  boycott within the meaning of Section 999 of the Code. HDI is not
required to include in income any  adjustment  pursuant to Section 481(a) of the
Code (or similar  provisions of other law or  regulations)  in its current or in
any future taxable period, by reason of a change in accounting  method; nor does
HDI have any knowledge that the IRS (or other taxing authority) has proposed; or
is considering,  any such change in accounting method. HDI is not a party to any
agreement,  contract,  or  arrangement  that would  result in the payment of any
"excess  parachute  payment" within the meaning of Section 280G of the Code (or,
in the case of any such  agreement  or  arrangement  to which it may be a party,
shareholder  approval of any such payments shall be obtained in accordance  with
Section  280G).  None of the assets of HDI is  property  that is  required to be
treated  as owned by any  other  person  pursuant  to the  "safe  harbor  lease"
provisions of former Section  168(f)(8) of the Internal  Revenue Code of 1954 as
amended and in effect  immediately  prior to the enactment of the Tax Reform Act
of 1986 and none of the assets of HDI is "tax  exempt use  property"  within the
meaning of Section  168(h) of the Code.  None of the assets of HDI  secures  any
debt the interest on which is tax exempt under Section 103 of the Code.

                  2.1.8  LEASES  IN  EFFECT.  HDI is  not a  party  to any  real
property leases or subleases.

                  2.1.9 CERTAIN TRANSACTIONS.  None of the directors,  officers,
or  Shareholder of HDI, or any member of any of their  families,  is presently a
party  to,  or was a  party  to  during  the  year  preceding  the  date of this
Agreement,  any  transaction  with  HDI,  including,   without  limitation,  any
contract,  agreement,  or other  arrangement (i) providing for the furnishing of
services to or by, (ii) providing for rental of real or personal  property to or
from, or (iii) otherwise  requiring  payments to or from, any such person or any
corporation, partnership, trust, or other entity in which any such person has or
had a 5%-or-more interest (as a shareholder, partner, beneficiary, or otherwise)
or is or was a director,  officer,  employee, or trustee. None of HDI's officers
or  directors  has any  material  interest in any  property,  real or  personal,
tangible or intangible,  including inventions,  copyrights,  trademarks or trade
names,  used  in or  pertaining  to  the  business  of  HDI,  or  any  supplier,
distributor  or customer of HDI,  except for the normal rights of a shareholder,
and except for rights under existing employee benefit plans.

                  2.1.10 LITIGATION AND OTHER  PROCEEDINGS.  Neither HDI nor any
of its officers,  directors,  shareholders  is a party to any pending or, to the
best knowledge of HDI,  threatened  action,  suit, labor dispute  (including any
union representation proceeding),  proceeding,  investigation, or discrimination
claim in or by any court or governmental board, commission,  agency, department,
or officer, or any arbitrator,  arising from the actions or omissions of HDI or,
in the case of an  individual,  from acts in his or her  capacity as an officer,
director,  or employee of HDI which  individually  or in the aggregate  would be

                                       12
<PAGE>

materially  adverse to HDI.  HDI is not  subject to any order,  writ,  judgment,
decree,  or  injunction  that has a material  adverse  effect on HDI's  Business
Condition.

                  2.1.11 NO DEFAULTS.  HDI is not,  nor has HDI received  notice
that it would be with the passage of time,  in default or violation of any term,
condition or provision of (i) the Articles of  Incorporation or Bylaws of HDI or
any comparable governing  instrument of HDI; (ii) any judgment,  decree or order
applicable to HDI; or (iii) any loan or credit agreement,  note, bond, mortgage,
indenture,  contract, agreement, lease, license or other instrument to which HDI
is now a party or by which it or any of its  properties  or assets may be bound,
except for defaults and  violations  which,  individually  or in the  aggregate,
would not have a material adverse effect on the Business Condition of HDI.

                  2.1.12   MAJOR CONTRACTS. HDI is not a party to or subject to:

                           (a) Any union contract, or any employment contract o
arrangement  providing  for  future  compensation,  written  or  oral,  with any
officer, consultant, director or employee;

                           (b) Any plan or contract or  arrangement,  written or
oral,  providing  for  bonuses,  pensions,  deferred  compensation,   retirement
payments, profit-sharing, or the like;

                           (c) Any joint venture  contract or arrangement or any
other  agreement  which has  involved  or is  expected  to  involve a sharing of
profits;

                           (d) Any OEM agreement, distribution agreement, volume
purchase   agreement,   corporate  end  user  sales  or  service   agreement  or
manufacturing  agreement in which the amount involved  exceeds  annually,  or is
expected to exceed in the  aggregate  over the life of the  contract  $25,000 or
pursuant to which HDI has granted or received manufacturing rights, most favored
nation pricing provisions or exclusive  marketing,  reproduction,  publishing or
distribution rights related to any product, group of products or territory;

                           (e) Any lease for real or personal  property in which
the amount of payments which HDI is required to
make on an annual basis exceeds $10,000;

                           (f) Any  material  agreement,   license,  franchise,
permit, indenture or authorization which has not been terminated or performed in
its entirety and not renewed which may be, by its terms, terminated, impaired or
adversely affected by reason of the execution of this Agreement, the Closing, or
the consummation of the transactions contemplated hereby or thereby;

                           (g) Except  for trade  indebtedness  incurred  in the
ordinary course of business,  any instrument evidencing or related in any way to
indebtedness  incurred in the  acquisition  of  companies  or other  entities or
indebtedness for borrowed money by way of direct loan, sale of debt securities,

                                       13
<PAGE>


purchase money  obligation,  conditional  sale,  guarantee,  or otherwise  which
individually is in the amount of $15,000 or more;

                           (h) Any  material  license   agreement,   either  as
licensor or licensee  (excluding  nonexclusive  hardware and  software  licenses
granted  to  distributors  or  end-users  in the  ordinary  course  of  business
consistent with prior practice); or

                           (i) Any contract containing  covenants  purporting to
limit HDI's freedom to compete in any line of business in any geographic area.

         All  contracts,  arrangements,  plans,  agreements,  leases,  licenses,
franchises,   permits,   indentures,   authorizations,   instruments  and  other
commitments  which are listed in the HDI  Disclosure  Schedule  pursuant to this
Section  2.1.12 are valid and in full force and effect and HDI has not,  nor, to
the best  knowledge of HDI, has any other party  thereto,  breached any material
provisions of, or is in default in any material respect under the terms thereof.

                  2.1.13 MATERIAL RELATIONS.  To HDI's knowledge, as of the date
of this Agreement,  none of the parties to any of the major contracts identified
in the HDI Disclosure  Schedule  pursuant to Section 2.1.12 have terminated,  or
expressed to the HDI an intent to  materially  reduce or terminate the amount of
its business with HDI in the future.

                  2.1.14 EMPLOYEES. HDI does not have any employees.

                  2.1.15  CERTAIN  AGREEMENTS.  Except as  disclosed  in the HDI
Disclosure Schedule or as contemplated by this Agreement,  neither the execution
and  delivery  of this  Agreement,  nor  the  consummation  of the  transactions
contemplated  hereby will: (i) result in any payment by HDI (including,  without
limitation,  severance,  unemployment compensation,  parachute payment, bonus or
otherwise) becoming due to any director,  employee or independent  contractor of
HDI under  any Plan,  agreement  or  otherwise,  (ii)  materially  increase  any
benefits  otherwise payable under any Plan or agreement,  or (iii) result in the
acceleration of the time of payment or vesting of any such benefits.

                  2.1.16  GUARANTEES  AND  SURETYSHIPS.  HDI  has no  powers  of
attorney outstanding (other than those issued in the ordinary course of business
with respect to tax matters), HDI has no obligations or liabilities (absolute or
contingent) as guarantor, surety, cosigner,  endorser, co-maker,  indemnitor, or
otherwise respecting the obligations or liabilities of any person,  corporation,
partnership, joint venture, association, organization, or other entity.

                  2.1.17  BROKERS AND FINDERS.  Neither HDI nor the  Shareholder
has retained any broker,  finder,  or investment  banker in connection with this
Agreement or any of the transactions contemplated by this Agreement, nor does or
will HDI owe any fee or other amount to any broker, finder, or investment banker
in  connection  with this  Agreement or the  transactions  contemplated  by this
Agreement.

                                       14
<PAGE>




                  2.1.18  CERTAIN  PAYMENTS.  Neither  HDI nor  the  Shareholder
acting on behalf of HDI,  nor to the best  knowledge of HDI, any person or other
entity acting on behalf of HDI has, directly or indirectly, on behalf of or with
respect to HDI:  (i) made an  unreported  political  contribution,  (ii) made or
received any payment  which was not legal to make or receive,  (iii)  engaged in
any transaction or made or received any payment which was not properly  recorded
on the books of HDI, (iv) created or used any "off-book" bank or cash account or
"slush  fund",  or (v) engaged in any conduct  constituting  a violation  of the
Foreign Corrupt Practices Act of 1977.

                  2.1.19 DISCLOSURE.  Neither the  representations or warranties
made by HDI and the Shareholder in this Agreement,  nor the final HDI Disclosure
Schedule or any other certificate executed and delivered by HDI pursuant to this
Agreement  contains any untrue statement of a material fact, or omits to state a
material  fact  necessary to make the  statements or facts  contained  herein or
therein  not  misleading  in light of the  circumstances  under  which they were
furnished.

                  2.1.20 RELIANCE. The foregoing  representations and warranties
are made by HDI and the  Shareholder  with the  knowledge and  expectation  that
OnHealth is placing reliance thereon.

         2.2 REPRESENTATIONS  AND WARRANTIES OF DMI AND THE SHAREHOLDER.  Except
as disclosed in a document  referring  specifically to the  representations  and
warranties in this Agreement  which  identifies by section number the section to
which such  disclosure  relates and is delivered by DMI and the  Shareholder  to
OnHealth  prior  to  the  execution  of  this  Agreement  (the  "DMI  DISCLOSURE
Schedule"),  and whether or not the DMI Disclosure  Schedule is referred to in a
specific section, DMI and the Shareholder,  jointly and severally, represent and
warrant to OnHealth and the Subs as follows:

                  2.2.1  ORGANIZATION,  STANDING AND POWER. DMI is a corporation
duly organized and validly existing under the laws of the state of Colorado, has
all requisite  corporate power and corporate authority to own, lease and operate
its  properties and to carry on its  businesses as now being  conducted,  and is
duly qualified and in good standing to do business in each jurisdiction in which
a failure to so qualify  would have a material  adverse  effect on the  Business
Condition  of  DMI.  DMI has no  Subsidiaries.  DMI has  delivered  to  OnHealth
complete  and correct  copies of the  articles,  bylaws,  and/or  other  primary
charter and organizational  documents ("DMI CHARTER  DOCUMENTS") of DMI, in each
case,  as amended to the date hereof.  The minute books and stock records of DMI
contain  correct and complete  records of all material  proceedings  and actions
taken at all meetings of, or effected by written consent of, the shareholders of
DMI and its  Board of  Directors,  and all  original  issuances  and  subsequent
transfers,  repurchases,  and  cancellations  of DMI's  capital  stock.  The DMI
Disclosure  Schedule  contains a complete  and correct  list of the officers and
directors of DMI.

                                       15
<PAGE>

                  2.2.2    CAPITAL STRUCTURE.

                           (a) The authorized  capital stock of DMI consists of
1,000 DMI Shares, no par value per share, of which 500 DMI Shares are issued and
outstanding.  As of the date  hereof,  no DMI  Common  Shares are  reserved  for
issuance  upon the exercise of  outstanding  DMI  warrants or options.  No other
shares  of  capital  stock,  other  than  the  DMI  Shares  are  outstanding  or
authorized.
                           (b) All  outstanding  DMI Shares are validly  issued,
fully paid,  nonassessable  and not subject to any preemptive  rights, or to any
agreement  to which DMI is a party or by which  DMI may be bound.  Except as set
forth in this Agreement,  there are not any options, warrants, calls, conversion
rights,  commitments,  agreements,  contracts,   understandings,   restrictions,
arrangements  or rights of any character to which DMI is a party or by which DMI
may be bound  obligating  DMI to issue,  deliver or sell, or cause to be issued,
delivered or sold,  additional shares of the capital stock of DMI, or obligating
DMI to grant, extend or enter into any such option,  warrant,  call,  conversion
right,  conversion  payment,  commitment,  agreement,  contract,  understanding,
restriction,  arrangement  or right.  DMI does not have  outstanding  any bonds,
debentures,  notes or other indebtedness the holders of which (i) have the right
to vote (or convertible or exercisable into securities having the right to vote)
with holders of DMI Shares on any matter ("DMI VOTING DEBT") or (ii) are or will
become  entitled  to receive any  payment as a result of the  execution  of this
Agreement or the Mergers.

                  2.2.3 AUTHORITY.  The execution,  delivery, and performance of
this  Agreement by DMI has been duly  authorized by all necessary  action of the
Board of Directors of DMI.  Certified  copies of the resolutions  adopted by the
Board of Directors of DMI approving  this Agreement have been, or at the Closing
will be,  provided to  OnHealth.  Each of DMI and the  Shareholder  has duly and
validly executed and delivered this Agreement,  and this Agreement constitutes a
valid, binding, and enforceable obligation of each of the Shareholder and DMI in
accordance  with its terms,  except as enforcement  may be limited by applicable
bankruptcy,  insolvency,  reorganization,  moratorium, or similar laws affecting
the enforcement of creditors'  rights generally and except that the availability
of the equitable remedy of specific  performance or injunctive relief is subject
to the discretion of the court before which any proceeding may be brought.

                  2.2.4 COMPLIANCE WITH LAWS AND OTHER  INSTRUMENTS.  DMI holds,
and at all times has held, all licenses,  permits,  and authorizations  from all
Governmental  Entities,  (as defined below)  necessary for the lawful conduct of
its business pursuant to all applicable statutes,  laws, ordinances,  rules, and
regulations of all such authorities  having  jurisdiction over it or any part of
its operations,  excepting,  however, when such failure to hold would not have a
material adverse effect on DMI's Business Condition.  There are no violations or
claimed violations known by DMI or the Shareholder of any such license,  permit,
or  authorization  or any such  statute,  law,  ordinance,  rule or  regulation.
Neither the execution and delivery of this Agreement by DMI and the  Shareholder
nor the performance by DMI and the Shareholder of their  obligations  under this
Agreement will, in any material  respect,  violate any provision of laws or will
conflict with,  result in the material  breach of any of the terms or conditions
of,  constitute  a  material  breach  of any  of the  terms  or  conditions  of,
constitute a material  default  under,  permit any party to accelerate any right
under, renegotiate, or terminate, require consent, approval, or waiver by any

                                       16
<PAGE>


party under,  or result in the  creation of any lien,  charge,  encumbrance,  or
restriction upon any of the properties,  assets,  or DMI Shares pursuant to, any
of the DMI Charter Documents or any agreement (including government  contracts),
indenture,  mortgage,  franchise,  license, permit, lease or other instrument of
any kind to which DMI is a party or by which  DMI or any of its  assets is bound
or  affected.  No  Consent by any  Governmental  Entity is  required  by or with
respect to DMI in connection  with the execution and delivery of this  Agreement
by DMI or the  consummation by DMI of the Mergers,  except for the filing of the
appropriate  Merger  Documents  with the  Secretary  of  State  of the  state of
Colorado and except for such other Consents, which if not obtained or made would
not have a material adverse effect on DMI's Business Condition.

                  2.2.5    TECHNOLOGY AND INTELLECTUAL PROPERTY RIGHTS.

                  (a)      The  "DMI  INTELLECTUAL PROPERTY"  consists  of  the
following:

                                    (i)    all  patents,   trademarks,   trade
names,  service  marks,  mask works,  domain names,  copyrights  and any renewal
rights,  applications and registrations for any of the foregoing,  and all trade
dress, net lists,  schematics,  technology,  manufacturing  processes,  supplier
lists,  trade secrets,  know-how,  moral rights,  computer  software programs or
applications (in both source and object code form) owned by DMI;

                                    (ii)   all    goodwill    associated    with
trademarks, trade names service marks and trade dress owned by DMI;

                                   (iii)   all software  and  firmware listings,
and updated  software  source  code,  and  complete  system  build  software and
instructions related to all software described herein owned by DMI;

                                    (iv)  all   documents,   records  and  files
relating to design,  end user  documentation,  manufacturing,  quality  control,
sales,  marketing or customer  support for all intellectual  property  described
herein owned by DMI;
                                     (v)  all  other  tangible  or  intangible
proprietary information and materials owned by DMI; and

                                    (vi)  all license  and  other  rights in any
third party product,  intellectual  property,  proprietary  or personal  rights,
documentation,  or tangible or intangible property, including without limitation
the types of  intellectual  property  and tangible  and  intangible  proprietary
information described in (i) through (v) above;

that are being,  and/or have been, used, or are currently under  development for
use,  in the  business  of DMI as it has  been,  is  currently  or is  currently
anticipated  to be (up to the Closing),  conducted.  DMI  Intellectual  Property
described  in  clauses  (i) to (v) above is  referred  to  herein as "DMI  OWNED
INTELLECTUAL  PROPERTY" and DMI Intellectual  Property  described in clause (vi)
above is  referred to herein as "DMI  LICENSED  INTELLECTUAL  PROPERTY".  Unless

                                       17
<PAGE>

otherwise  noted, all references to "DMI  Intellectual  Property" shall refer to
both DMI Owned Intellectual Property and DMI Licensed Intellectual Property.

                           (b)  The  DMI  Disclosure  Schedule  lists:  (i)  all
patents,  registered copyrights,  mask works,  trademarks,  service marks, trade
dress,  any renewal rights for any of the foregoing,  and any  applications  and
registrations  for any of the  foregoing,  that are  included  in the DMI  Owned
Intellectual  Property;  (ii) all hardware products and tools, software products
and  tools,  and  services  that  are  currently  published,  offered,  or under
development  by DMI;  (iii) all licenses,  sublicenses  and other  agreements to
which DMI is a party and  pursuant to which any other  person is  authorized  to
have access to or use the DMI Owned Intellectual  Property or exercise any other
right with regard thereto;  (iv) all DMI Licensed  Intellectual  Property (other
than  license   agreements  for  standard  "shrink  wrapped,   off  the  shelf,"
commercially  available,  third  party  products  used by the DMI);  and (v) any
obligations   of   exclusivity,   noncompetition,   nonsolicitation,   or  first
negotiation  to which  DMI is  subject  under any  agreement  that does not fall
within the ambit of (iii) or (iv) above.

                           (c)  The DMI Intellectual Property consists solely of
items and rights that are either:  (i) owned by DMI, (ii) in the public  domain,
or  (iii)  rightfully  used  and  authorized  for use by DMI and its  successors
pursuant to a valid  license or other  agreement.  DMI has all rights in the DMI
Intellectual  Property  reasonably  necessary  to carry out DMI's  current,  and
anticipated  future (up to the Closing)  activities and has or had all rights in
the DMI  Intellectual  Property  reasonably  necessary to carry out DMI's former
activities,  including  without  limitation,  if  necessary  to  carry  out such
activities,  rights to make, use, exclude others from using, reproduce,  modify,
adapt,  create  derivative works based on, translate,  distribute  (directly and
indirectly),  transmit,  display and perform  publicly,  license,  rent,  lease,
assign, and sell the DMI Intellectual  Property in all geographic  locations and
fields  of use,  and to  sublicense  any or all such  rights  to third  parties,
including  the right to grant  further  sublicenses.  All  software and firmware
listings  that are part of the DMI Owned  Intellectual  Property are  adequately
commented in accordance with current software industry standards.

                           (d)  DMI is not, nor as a result of the  execution or
delivery of this Agreement, or performance of DMI's obligations hereunder,  will
DMI be, in violation of any license,  sublicense or other agreement  relating to
the DMI Intellectual Property to which DMI is a party or otherwise bound. Except
pursuant to the terms of the agreements  listed in the DMI Disclosure  Schedule,
DMI  is not  obligated  to  provide  any  consideration  (whether  financial  or
otherwise) to any third party, nor is any third party otherwise  entitled to any
consideration,  with respect to any exercise of rights by DMI or its  successors
in the DMI Intellectual Property.

                           (e)  The    use,    reproduction,     modification,
distribution,  licensing, sublicensing, sale, or any other exercise of rights in
any DMI Owned Intellectual  Property or any other authorized  exercise of rights
in or to the DMI Owned  Intellectual  Property by DMI or its licensees  does not
and, and to DMI's  knowledge,  will not infringe any  copyright,  patent,  trade
secret, trademark,  service mark, trade name, firm name, logo, trade dress, mask
work, moral right, other intellectual property right, right of privacy, right of
publicity  or right in  personal or other data of any  person.  Further,  to the
knowledge of DMI, the use, reproduction,  modification, distribution, licensing,
sublicensing,  sale,  or any  other  exercise  of  rights  in any  DMI  Licensed

                                       18
<PAGE>

Intellectual  Property or any other  authorized  exercise of rights in or to the
DMI Licensed Intellectual Property by DMI or its licensees does not and will not
infringe any copyright,  patent,  trade secret,  trademark,  service mark, trade
name, firm name, logo, trade dress, mask work, moral right,  other  intellectual
property  right,  right of privacy,  right of  publicity or right in personal or
other data of any person. No claims (i) challenging the validity, effectiveness,
or ownership by DMI of any of the DMI Owned  Intellectual  Property,  or (ii) to
the   effect   that  the   use,   reproduction,   modification,   manufacturing,
distribution,  licensing,  sublicensing, sale or any other exercise of rights in
any DMI Owned Intellectual  Property by DMI or its licensees infringes,  or will
infringe on, any intellectual property or other proprietary or personal right of
any person,  have been asserted or, to the  knowledge of DMI, are  threatened by
any person nor, to the  knowledge  of DMI,  are there any valid  grounds for any
bona fide claim of any such kind.  All granted or issued  patents and mask works
and all  registered  trademarks  listed on the DMI  Disclosure  Schedule and all
copyright  registrations held by DMI are valid,  enforceable and subsisting.  To
the  knowledge  of  DMI,  there  is  no   unauthorized   use,   infringement  or
misappropriation  of any of the DMI  Owned  Intellectual  Property  by any third
party, employee or former employee.

                           (f)   No  parties   other  than  DMI  possess  any
current or  contingent  rights to any source  code that is part of the DMI Owned
Intellectual  Property  (including,   without  limitation,  through  any  escrow
account).
                           (g)   The DMI Disclosure Schedule lists all parties
who have created any material portion of, or otherwise have any rights in or to,
the DMI Owned  Intellectual  Property  other  than  employees  of DMI whose work
product was created by them entirely within the scope of their employment by DMI
and  constitutes  works made for hire  owned by DMI.  DMI has  secured  from all
parties who have created any material  portion of, or otherwise  have any rights
in or to, the DMI Owned  Intellectual  Property  valid and  enforceable  written
assignments or licenses of any such work or other rights to DMI and has provided
true and complete copies of such assignments or licenses to OnHealth.

                           (h)   The DMI  Disclosure  Schedule  includes a true
and complete list of support and  maintenance  agreements  relating to DMI Owned
Intellectual Property or to which DMI is a party as to DMI Licensed Intellectual
Property  including the identity of the parties and the respective dates of such
agreements and remedies for their breach.

                           (i)   DMI  has   obtained  legally   binding  written
agreements  from  all  third  parties  with  whom  DMI has  shared  confidential
proprietary  information  (i) of DMI, or (ii)  received from others which DMI is
obligated to treat as confidential,  which agreements require such third parties
to keep such information confidential.

                           (j)   DMI has obtained any and all necessary consents
from consumers with regard to the DMI's collection and dissemination of personal
consumer information in accordance with DMI's privacy policy as published on its

                                       19
<PAGE>


website.  DMI's practices  regarding the collection and use of consumer personal
information  are in  accordance  with DMI's  privacy  policy as published on its
website.

                           (k)   The  DMI  Owned  Intellectual Property is,  and
any products  manufactured and  commercially  released by DMI or currently under
development, are fully Year 2000 Compliant in all material respects and will not
cease to be fully Year 2000 Compliant in any material  respect at any time prior
to, during or after the calendar year 2000. To the best of DMI's knowledge,  the
DMI Licensed  Intellectual Property is fully Year 2000 Compliant in all material
respects  and will not cease to be fully  Year 2000  Compliant  in any  material
respect at any time prior to, during or after the calendar  year 2000.  Schedule
2.2.5(k) sets forth the tests,  inquiries and other activities undertaken by DMI
up to Closing, with respect to the Year 2000 Compliant nature of any and all DMI
Licensed Intellectual Property.

                  2.2.6 FINANCIAL  STATEMENTS.  DMI has delivered to OnHealth an
unaudited  balance  sheet as of September  30, 1999,  and the related  unaudited
statement of income for the nine months  ended  September  30, 1999  included in
Schedule  2.2.6 hereto (such balance sheet is referred to as the "DMI  FINANCIAL
STATEMENT").  Such DMI Financial Statement: (i) are in accordance with the books
and records of DMI, (ii) present fairly, in all material respects, the financial
position of DMI as of the date  indicated and the results of its  operations for
each of the periods  indicated,  and (iii) have been prepared in accordance with
generally accepted  accounting  principles  consistently  applied except (a) the
unaudited Financial Statements do not contain footnotes, and (b) as described in
the  DMI  Disclosure   Schedule.   There  are  no  material   off-balance  sheet
liabilities,  claims or obligations of any nature,  whether  accrued,  absolute,
contingent,  anticipated,  or otherwise,  whether due or to become due, that are
not  shown  or  provided  for  either  in the  Financial  Statements  or the DMI
Disclosure Schedule. The liabilities of DMI were incurred in the ordinary course
of DMI's business except as otherwise indicated in the DMI Disclosure  Schedule.
The "DMI PRO FORMA CLOSING BALANCE SHEET" included in Schedule 2.2.6 sets forth,
based on  reasonable  assumptions  relating  to the  operation  of the  business
conducted by DMI, the projected  Balance Sheet as of the estimated Closing Date.
A "FINAL DMI PRO FORMA CLOSING BALANCE SHEET" will be prepared,  and any updates
or revisions of such statement will be prepared,  on a basis consistent with the
Financial  Statement (with the proviso that the Pro Forma Closing Balance Sheets
shall not be reviewed in accordance  with  applicable  standards of the American
Institute of Certified Public Accountants) and Schedule 2.2.6.

                  2.2.7 TAXES.  DMI has timely filed (or caused to be filed) all
federal,  state,  local  and  foreign  tax  returns,   reports  and  information
statements required to be filed by it, which returns, reports and statements are
true, correct and complete in all material respects, and paid all taxes required
to be paid by it as shown on such  returns,  reports and  statements.  All taxes
required  to be paid for all  Return  Periods  have  either  been  paid or fully
accrued  on the  books  of  DMI.  DMI has  fully  accrued  on the DMI  Financial
Statements  all of its unpaid taxes in respect of all periods (or the portion of
any such periods) subsequent to the Return Periods, and will accrue on the Final
Pro Forma  Closing  Balance  Sheet all unpaid  taxes with  respect to any period
ending after  September 30, 1999,  and through the Closing  Date.  The books and
records of the DMI have been kept on a tax basis. No deficiencies or adjustments


                                       20
<PAGE>


for any tax have been  claimed,  proposed or  assessed,  or to the best of DMI's
knowledge,  threatened.  The DMI Disclosure  Schedule  accurately sets forth the
years for which DMI's federal and state income tax returns,  respectively,  have
been audited and any years which,  to the knowledge of DMI, are the subject of a
pending audit by the Internal Revenue Service and the applicable state agencies.
Except as so  disclosed,  DMI is not  subject to any  pending or, to the best of
DMI's knowledge, threatened, tax audit or examination and DMI has not waived any
statute of  limitation  with respect to the  assessment  of any tax which waiver
remains in effect.  DMI has provided OnHealth true and correct copies of all tax
returns,  information,  statements,  reports,  work  papers  and  other tax data
reasonably  requested by OnHealth.  No consent or agreement  has been made under
Section 341 of the Code by or on behalf of DMI or any predecessor thereof.

         There are no liens for taxes  upon the  assets of DMI  except for taxes
that are not yet payable.  DMI has not  participated  in, or cooperated with, an
international  boycott within the meaning of Section 999 of the Code. DMI is not
required to include in income any  adjustment  pursuant to Section 481(a) of the
Code (or similar  provisions of other law or  regulations)  in its current or in
any future taxable period, by reason of a change in accounting  method; nor does
DMI have any knowledge that the IRS (or other taxing authority) has proposed; or
is considering,  any such change in accounting method. DMI is not a party to any
agreement,  contract,  or  arrangement  that would  result in the payment of any
"excess  parachute  payment" within the meaning of Section 280G of the Code (or,
in the case of any such  agreement  or  arrangement  to which it may be a party,
shareholder  approval of any such payments shall be obtained in accordance  with
Section  280G).  None of the assets of DMI is  property  that is  required to be
treated  as owned by any  other  person  pursuant  to the  "safe  harbor  lease"
provisions of former Section  168(f)(8) of the Internal  Revenue Code of 1954 as
amended and in effect  immediately  prior to the enactment of the Tax Reform Act
of 1986 and none of the assets of DMI is "tax  exempt use  property"  within the
meaning of Section  168(h) of the Code.  None of the assets of DMI  secures  any
debt the interest on which is tax exempt under Section 103 of the Code.

                  2.2.8  LEASES  IN  EFFECT.  DMI is  not a  party  to any  real
property leases or subleases.

                  2.2.9 CERTAIN TRANSACTIONS.  None of the directors,  officers,
or shareholders  of DMI, or any member of any of their families,  is presently a
party  to,  or was a  party  to  during  the  year  preceding  the  date of this
Agreement,  any  transaction  with  DMI,  including,   without  limitation,  any
contract,  agreement,  or other  arrangement (i) providing for the furnishing of
services to or by, (ii) providing for rental of real or personal  property to or
from, or (iii) otherwise  requiring  payments to or from, any such person or any
corporation, partnership, trust, or other entity in which any such person has or
had a 5%-or-more interest (as a shareholder, partner, beneficiary, or otherwise)
or is or was a director,  officer,  employee, or trustee. None of DMI's officers
or  directors  has any  material  interest in any  property,  real or  personal,
tangible or intangible,  including inventions,  copyrights,  trademarks or trade
names,  used  in or  pertaining  to  the  business  of  DMI,  or  any  supplier,
distributor  or customer of DMI,  except for the normal rights of a shareholder,
and except for rights under existing employee benefit plans.

                                       21
<PAGE>


                  2.2.10 LITIGATION AND OTHER  PROCEEDINGS.  Neither DMI nor any
of its officers,  directors,  shareholders  is a party to any pending or, to the
best knowledge of DMI,  threatened  action,  suit, labor dispute  (including any
union representation proceeding),  proceeding,  investigation, or discrimination
claim in or by any court or governmental board, commission,  agency, department,
or officer, or any arbitrator,  arising from the actions or omissions of DMI or,
in the case of an  individual,  from acts in his or her  capacity as an officer,
director,  or employee of DMI which  individually  or in the aggregate  would be
materially  adverse to DMI.  DMI is not  subject to any order,  writ,  judgment,
decree,  or  injunction  that has a material  adverse  effect on DMI's  Business
Condition.

                  2.2.11 NO DEFAULTS.  DMI is not,  nor has DMI received  notice
that it would be with the passage of time,  in default or violation of any term,
condition or provision of (i) the Articles of  Incorporation or Bylaws of DMI or
any comparable governing  instrument of DMI; (ii) any judgment,  decree or order
applicable to DMI; or (iii) any loan or credit agreement,  note, bond, mortgage,
indenture,  contract, agreement, lease, license or other instrument to which DMI
is now a party or by which it or any of its  properties  or assets may be bound,
except for defaults and  violations  which,  individually  or in the  aggregate,
would not have a material adverse effect on the Business Condition of DMI.

                  2.2.12 MAJOR CONTRACTS.  DMI is not a party to or subject to:

                           (a) Any union contract, or any employment contract or
arrangement  providing  for  future  compensation,  written  or  oral,  with any
officer, consultant, director or employee;

                           (b) Any plan or contract or  arrangement,  written or
oral,  providing  for  bonuses,  pensions,  deferred  compensation,   retirement
payments, profit-sharing, or the like;

                           (c) Any joint venture  contract or arrangement or any
other  agreement  which has  involved  or is  expected  to  involve a sharing of
profits;

                           (d) Any OEM agreement, distribution agreement, volume
purchase   agreement,   corporate  end  user  sales  or  service   agreement  or
manufacturing  agreement in which the amount involved  exceeds  annually,  or is
expected to exceed in the  aggregate  over the life of the  contract  $25,000 or
pursuant to which DMI has granted or received manufacturing rights, most favored
nation pricing provisions or exclusive  marketing,  reproduction,  publishing or
distribution rights related to any product, group of products or territory;

                           (e) Any lease for real or personal  property in which
the amount of payments  which DMI is required to make on an annual basis exceeds
$10,000;

                           (f) Any  material  agreement,   license,  franchise,
permit, indenture or authorization which has not been terminated or performed in
its entirety and not renewed which may be, by its terms, terminated, impaired or

                                       22
<PAGE>


adversely affected by reason of the execution of this Agreement, the Closing, or
the consummation of the transactions contemplated hereby or thereby;

                           (g) Except  for trade  indebtedness  incurred  in the
ordinary course of business,  any instrument evidencing or related in any way to
indebtedness  incurred in the  acquisition  of  companies  or other  entities or
indebtedness  for borrowed money by way of direct loan, sale of debt securities,
purchase money  obligation,  conditional  sale,  guarantee,  or otherwise  which
individually is in the amount of $15,000 or more;

                           (h) Any  material  license   agreement,   either  as
licensor or licensee  (excluding  nonexclusive  hardware and  software  licenses
granted  to  distributors  or  end-users  in the  ordinary  course  of  business
consistent with prior practice); or

                           (i) Any contract containing  covenants  purporting to
limit DMI's freedom to compete in any line of business in any geographic area.

         All  contracts,  arrangements,  plans,  agreements,  leases,  licenses,
franchises,   permits,   indentures,   authorizations,   instruments  and  other
commitments  which are listed in the DMI  Disclosure  Schedule  pursuant to this
Section  2.2.12 are valid and in full force and effect and DMI has not,  nor, to
the best  knowledge of DMI, has any other party  thereto,  breached any material
provisions of, or is in default in any material respect under the terms thereof.

                  2.2.13 MATERIAL RELATIONS.  To DMI's knowledge, as of the date
of this Agreement,  none of the parties to any of the major contracts identified
in the DMI Disclosure  Schedule  pursuant to Section 2.2.12 have terminated,  or
expressed to the DMI an intent to  materially  reduce or terminate the amount of
its business with DMI in the future.

                  2.2.14 EMPLOYEES. DMI does not have any employees.

                  2.2.15  CERTAIN  AGREEMENTS.  Except as  disclosed  in the DMI
Disclosure Schedule or as contemplated by this Agreement,  neither the execution
and  delivery  of this  Agreement,  nor  the  consummation  of the  transactions
contemplated  hereby will: (i) result in any payment by DMI (including,  without
limitation,  severance,  unemployment compensation,  parachute payment, bonus or
otherwise) becoming due to any director,  employee or independent  contractor of
DMI under  any Plan,  agreement  or  otherwise,  (ii)  materially  increase  any
benefits  otherwise payable under any Plan or agreement,  or (iii) result in the
acceleration of the time of payment or vesting of any such benefits.

                  2.2.16  GUARANTEES  AND  SURETYSHIPS.  DMI  has no  powers  of
attorney outstanding (other than those issued in the ordinary course of business
with respect to tax matters), DMI has no obligations or liabilities (absolute or
contingent) as guarantor, surety, cosigner,  endorser, co-maker,  indemnitor, or
otherwise respecting the obligations or liabilities of any person,  corporation,
partnership, joint venture, association, organization, or other entity.

                                       23
<PAGE>


                  2.2.17  BROKERS AND FINDERS.  Neither DMI nor the  Shareholder
have retained any broker,  finder,  or investment banker in connection with this
Agreement or any of the transactions contemplated by this Agreement, nor does or
will DMI owe any fee or other amount to any broker, finder, or investment banker
in  connection  with this  Agreement or the  transactions  contemplated  by this
Agreement.

                  2.2.18  CERTAIN  PAYMENTS.  Neither  DMI nor  the  Shareholder
acting on behalf of DMI,  nor to the best  knowledge of DMI, any person or other
entity acting on behalf of DMI has, directly or indirectly, on behalf of or with
respect to DMI:  (i) made an  unreported  political  contribution,  (ii) made or
received any payment  which was not legal to make or receive,  (iii)  engaged in
any transaction or made or received any payment which was not properly  recorded
on the books of DMI, (iv) created or used any "off-book" bank or cash account or
"slush  fund",  or (v) engaged in any conduct  constituting  a violation  of the
Foreign Corrupt Practices Act of 1977.

                  2.2.19 DISCLOSURE.  Neither the  representations or warranties
made by DMI and the Shareholder in this Agreement,  nor the final DMI Disclosure
Schedule or any other certificate executed and delivered by DMI pursuant to this
Agreement  contains any untrue statement of a material fact, or omits to state a
material  fact  necessary to make the  statements or facts  contained  herein or
therein  not  misleading  in light of the  circumstances  under  which they were
furnished.

                  2.2.20 RELIANCE. The foregoing  representations and warranties
are made by DMI and the  Shareholder  with the  knowledge and  expectation  that
OnHealth is placing reliance thereon.

         2.3 REPRESENTATIONS AND WARRANTIES OF THE LLC. Except as disclosed in a
document referring  specifically to the  representations  and warranties in this
Agreement  which  identifies  by  section  number  the  section  to  which  such
disclosure  relates  and is  delivered  by  the  LLC to  OnHealth  prior  to the
execution of this Agreement (the "LLC DISCLOSURE SCHEDULE"),  and whether or not
the LLC Disclosure  Schedule is referred to in a specific  section,  each of the
LLC and its  members,  HDI and DMI (the  "MEMBERS")  represents  and warrants to
OnHealth and the Subs as follows:

                  2.3.1  ORGANIZATION,  STANDING AND POWER. The LLC is a limited
liability  company duly  organized  and validly  existing  under the laws of the
state of Colorado,  has all  requisite  power and  authority  to own,  lease and
operate its properties  and to carry on its  businesses as now being  conducted,
and is duly  qualified and in good standing to do business in each  jurisdiction
in which a failure to so qualify  would  have a material  adverse  effect on the
Business  Condition  of  the  LLC.  References  to the  LLC  shall  include  all
Subsidiaries of the LLC, unless the context  specifically  indicates  otherwise.
The LLC has delivered to OnHealth complete and correct copies of the certificate
of  formation,   operating   agreement,   and/or  other   primary   charter  and
organizational  documents ("LLC CHARTER DOCUMENTS") of the LLC, in each case, as
amended  to the date  hereof.  The  minute  books and stock  records  of the LLC
contain  correct and complete  records of all material  proceedings  and actions
taken at all meetings of, or effected by written  consent of, the members of the

                                       24
<PAGE>

LLC, and all original  issuances  and  subsequent  transfers,  repurchases,  and
cancellations of the LLC's  membership  interests.  The DMI Disclosure  Schedule
contains a complete  and correct  list of the  officers  and  directors or other
managing structure of the LLC.

                  2.3.2    CAPITAL STRUCTURE.

                           (a) The LLC Charter  Documents provide for membership
interests that have been issued HDI and DMI as set forth on Schedule  2.3.2.  No
other membership  interests or agreements to issue  membership  interests in the
LLC exist or are outstanding.

                           (b) None of the  membership interests  in the LLC are
subject to any  preemptive  rights,  or to any  agreement  to which the LLC is a
party or by which  the LLC may be bound.  Except as set forth in this  Agreement
and  Schedule  2.3.2,  there  are  not any  membership  interests  of any  sort,
conversion   rights,   commitments,   agreements,   contracts,   understandings,
restrictions,  arrangements  or  rights of any  character  to which the LLC is a
party or by which the LLC may be bound  obligating the LLC to issue,  deliver or
sell, or cause to be issued,  delivered or sold,  additional ownership interests
of the LLC,  or  obligating  the LLC to  grant,  extend  or enter  into any such
ownership interest, commitment, agreement, contract, understanding, restriction,
arrangement or right. The LLC does not have  outstanding any bonds,  debentures,
notes or other  indebtedness the holders of which (i) have the right to vote (or
convertible or exercisable  into  securities  having the right to participate in
the  management  of the LLC) with current  members or managers of the LLC on any
matter  ("LLC VOTING  DEBT") or (ii) are or will become  entitled to receive any
payment as a result of the execution of this  Agreement or the completion of the
Mergers.

                  2.3.3 AUTHORITY.  The execution,  delivery, and performance of
this  Agreement by the LLC has been duly  authorized by all necessary  action of
the LLC.  Certified copies of the resolutions  adopted by the LLC approving this
Agreement  have been, or at the Closing will be,  provided to OnHealth.  The LLC
has duly and validly  executed and delivered this Agreement,  and this Agreement
constitutes  a  valid,  binding,  and  enforceable  obligation  of  the  LLC  in
accordance  with its terms,  except as enforcement  may be limited by applicable
bankruptcy,  insolvency,  reorganization,  moratorium, or similar laws affecting
the enforcement of creditors'  rights generally and except that the availability
of the equitable remedy of specific  performance or injunctive relief is subject
to the discretion of the court before which any proceeding may be brought.

                  2.3.4  COMPLIANCE  WITH  LAWS AND OTHER  INSTRUMENTS.  The LLC
holds, and at all times has held, all licenses, permits, and authorizations from
all  Governmental  Entities,  necessary  for the lawful  conduct of its business
pursuant to all applicable statutes, laws, ordinances, rules, and regulations of
all such authorities having  jurisdiction over it or any part of its operations,
excepting,  however, when such failure to hold would not have a material adverse
effect on the LLC's  Business  Condition.  There are no  violations  or  claimed
violations known by the LLC of any such license, permit, or authorization or any
such statute,  law,  ordinance,  rule or  regulation.  Neither the execution and
delivery  of this  Agreement  by the LLC nor the  performance  by the LLC of its
obligations under this Agreement will, in any material respect,

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<PAGE>


violate any  provision  of laws or will  conflict  with,  result in the material
breach of any of the terms or conditions of, constitute a material breach of any
of the terms or conditions of,  constitute a material default under,  permit any
party to accelerate any right under, renegotiate, or terminate, require consent,
approval,  or waiver by any party under,  or result in the creation of any lien,
charge,  encumbrance,  or  restriction  upon  any  of  the  properties,  limited
liability  company  interests,  or assets,  pursuant  to, any of the LLC Charter
Documents  or  any  agreement  (including  government   contracts),   indenture,
mortgage,  franchise,  license, permit, lease or other instrument of any kind to
which  the LLC is a party or by which  the LLC or any of its  assets is bound or
affected.  No Consent by any Governmental  Entity is required by or with respect
to the LLC in connection  with the  execution and delivery of this  Agreement by
the LLC or the consummation by the LLC of the Mergers,  except for the filing of
the  appropriate  Merger  Documents  with the Secretary of State of the state of
Colorado and except for such other Consents and for such other  Consents,  which
if not  obtained or made would not have a material  adverse  effect on the LLC's
Business Condition.

                  2.3.5    TECHNOLOGY AND INTELLECTUAL PROPERTY RIGHTS.

                    (a)    The  "LLC  INTELLECTUAL  PROPERTY" consists  of  the
following:

                                    (i)    all  patents,   trademarks,   trade
names,  service  marks,  mask works,  domain names,  copyrights  and any renewal
rights,  applications and registrations for any of the foregoing,  and all trade
dress, net lists,  schematics,  technology,  manufacturing  processes,  supplier
lists,  trade secrets,  know-how,  moral rights,  computer  software programs or
applications (in both source and object code form) owned by the LLC;

                                    (ii)   all    goodwill    associated    with
trademarks, trade names service marks and trade dress owned by the LLC;

                                    (iii)  all software  and firmware  listings,
and updated  software  source  code,  and  complete  system  build  software and
instructions related to all software described herein owned by the LLC;

                                    (iv)   all  documents,   records  and  files
relating to design,  end user  documentation,  manufacturing,  quality  control,
sales,  marketing or customer  support for all intellectual  property  described
herein owned by the LLC;

                                    (v)    all  other tangible  or  intangible
proprietary  information  and materials owned by the LLC; and

                                    (vi)   all license and  other  rights in any
third party product,  intellectual  property,  proprietary  or personal  rights,
documentation,  or tangible or intangible property, including without limitation
the types of  intellectual  property  and tangible  and  intangible  proprietary
information described in (i) through (v) above; that are being,  and/or have

                                       26
<PAGE>


been,  used, or are currently under  development for use, in the business of the
LLC as it has been,  is currently or is currently  anticipated  to be (up to the
Closing),  conducted.  LLC Intellectual Property described in clauses (i) to (v)
above is  referred  to  herein  as "LLC  OWNED  INTELLECTUAL  PROPERTY"  and LLC
Intellectual  Property  described  in clause (vi) above is referred to herein as
"LLC LICENSED INTELLECTUAL PROPERTY".  Unless otherwise noted, all references to
"LLC Intellectual  Property" shall refer to both LLC Owned Intellectual Property
and LLC Licensed Intellectual Property.

                           (b)  The  LLC  Disclosure  Schedule  lists:  (i)  all
patents,  registered copyrights,  mask works,  trademarks,  service marks, trade
dress,  any renewal rights for any of the foregoing,  and any  applications  and
registrations  for any of the  foregoing,  that are  included  in the LLC  Owned
Intellectual  Property;  (ii) all hardware products and tools, software products
and  tools,  and  services  that  are  currently  published,  offered,  or under
development by the LLC; (iii) all licenses,  sublicenses and other agreements to
which the LLC is a party and pursuant to which any other person is authorized to
have access to or use the LLC Owned Intellectual  Property or exercise any other
right with regard thereto;  (iv) all LLC Licensed  Intellectual  Property (other
than  license   agreements  for  standard  "shrink  wrapped,   off  the  shelf,"
commercially  available,  third  party  products  used by the LLC);  and (v) any
obligations   of   exclusivity,   noncompetition,   nonsolicitation,   or  first
negotiation  to which the LLC is subject under any agreement  that does not fall
within the ambit of (iii) or (iv) above.

                           (c)  The LLC Intellectual Property consists solely of
items and  rights  that are  either:  (i) owned by the LLC,  (ii) in the  public
domain,  or  (iii)  rightfully  used and  authorized  for use by the LLC and its
successors  pursuant  to a valid  license  or other  agreement.  The LLC has all
rights in the LLC Intellectual  Property  reasonably  necessary to carry out the
LLC's current,  and anticipated future (up to the Closing) activities and has or
had all rights in the LLC Intellectual  Property  reasonably  necessary to carry
out the LLC's former activities,  including without limitation,  if necessary to
carry out such  activities,  rights to make,  use,  exclude  others  from using,
reproduce,   modify,   adapt,  create  derivative  works  based  on,  translate,
distribute  (directly and indirectly),  transmit,  display and perform publicly,
license,  rent,  lease,  assign,  and sell the LLC Intellectual  Property in all
geographic locations and fields of use, and to sublicense any or all such rights
to third parties, including the right to grant further sublicenses. All software
and firmware listings that are part of the LLC Owned  Intellectual  Property are
adequately commented in accordance with current software industry standards.

                           (d)  The LLC is not, nor as a result of the execution
or  delivery  of  this  Agreement,  or  performance  of  the  LLC's  obligations
hereunder,  will the LLC be, in violation of any  license,  sublicense  or other
agreement relating to the LLC Intellectual  Property to which the LLC is a party
or otherwise bound. Except pursuant to the terms of the agreements listed in the
LLC Disclosure  Schedule,  the LLC is not obligated to provide any consideration
(whether  financial or  otherwise)  to any third  party,  nor is any third party
otherwise entitled to any consideration,  with respect to any exercise of rights
by the LLC or its successors in the LLC Intellectual Property.

                                       27
<PAGE>


                           (e)  The    use,    reproduction,     modification,
distribution,  licensing, sublicensing, sale, or any other exercise of rights in
any LLC Owned Intellectual  Property or any other authorized  exercise of rights
in or to the LLC Owned  Intellectual  Property by the LLC or its licensees  does
not and, to the LLC's knowledge, will not infringe any copyright,  patent, trade
secret, trademark,  service mark, trade name, firm name, logo, trade dress, mask
work, moral right, other intellectual property right, right of privacy, right of
publicity  or right in  personal or other data of any  person.  Further,  to the
knowledge  of  the  LLC,  the  use,  reproduction,  modification,  distribution,
licensing,  sublicensing,  sale,  or any  other  exercise  of  rights in any LLC
Licensed  Intellectual Property or any other authorized exercise of rights in or
to the LLC Licensed  Intellectual  Property by the LLC or its licensees does not
and will not infringe any copyright,  patent, trade secret,  trademark,  service
mark, trade name, firm name, logo,  trade dress,  mask work, moral right,  other
intellectual  property right,  right of privacy,  right of publicity or right in
personal or other data of any person.  No claims (i)  challenging  the validity,
effectiveness,  or  ownership  by the LLC of any of the LLC  Owned  Intellectual
Property,  or (ii) to the  effect  that  the  use,  reproduction,  modification,
manufacturing, distribution, licensing, sublicensing, sale or any other exercise
of rights in any LLC Owned  Intellectual  Property  by the LLC or its  licensees
infringes,  or will infringe on, any intellectual  property or other proprietary
or personal right of any person,  have been asserted or, to the knowledge of the
LLC, are  threatened  by any person nor, to the  knowledge of the LLC, are there
any valid  grounds  for any bona fide  claim of any such  kind.  All  granted or
issued  patents and mask works and all registered  trademarks  listed on the LLC
Disclosure  Schedule and all copyright  registrations held by the LLC are valid,
enforceable  and  subsisting.   To  the  knowledge  of  the  LLC,  there  is  no
unauthorized  use,  infringement  or  misappropriation  of any of the LLC  Owned
Intellectual Property by any third party, employee or former employee.

                           (f) No parties other than the LLC possess any current
or  contingent  rights  to any  source  code  that  is  part  of the  LLC  Owned
Intellectual  Property  (including,   without  limitation,  through  any  escrow
account).
                           (g) The LLC Disclosure Schedule lists all parties who
have created any material portion of, or otherwise have any rights in or to, the
LLC Owned  Intellectual  Property  other  than  employees  of the LLC whose work
product was created by them entirely within the scope of their employment by the
LLC and  constitutes  works made for hire owned by the LLC.  The LLC has secured
from all parties who have created any material portion of, or otherwise have any
rights  in or to,  the LLC Owned  Intellectual  Property  valid and  enforceable
written  assignments or licenses of any such work or other rights to the LLC and
has  provided  true and  complete  copies of such  assignments  or  licenses  to
OnHealth.
                           (h) The LLC Disclosure  Schedule  includes a true and
complete  list of  support  and  maintenance  agreements  relating  to LLC Owned
Intellectual  Property  or to  which  the  LLC is a  party  as to  LLC  Licensed
Intellectual  Property  including the identity of the parties and the respective
dates of such agreements and remedies for their breach.

                                       28
<PAGE>


                           (i)  The  LLC has  obtained  legally  binding written
agreements  from all  employees  and third  parties with whom the LLC has shared
confidential  proprietary  information  (i) of the LLC,  or (ii)  received  from
others  which the LLC is obligated to treat as  confidential,  which  agreements
require such employees and third parties to keep such information confidential.

                           (j)  The  LLC has  obtained  any  and  all  necessary
consents from consumers with regard to the LLC's collection and dissemination of
personal  consumer  information  in accordance  with the LLC's privacy policy as
published on its website.  The LLC's practices  regarding the collection and use
of consumer personal information are in accordance with the LLC's privacy policy
as published on its website.

                           (k)  The LLC Owned  Intellectual Property is, and any
products  manufactured and  commercially  released by the LLC or currently under
development, are fully Year 2000 Compliant in all material respects and will not
cease to be fully Year 2000 Compliant in any material  respect at any time prior
to, during or after the calendar year 2000. To the best of the LLC's  knowledge,
the LLC  Licensed  Intellectual  Property  is fully Year 2000  Compliant  in all
material  respects  and will not cease to be fully  Year 2000  Compliant  in any
material  respect at any time prior to,  during or after the calendar year 2000.
Schedule  2.3.5(k)  sets  forth  the  tests,   inquiries  and  other  activities
undertaken  by the LLC up to Closing,  with  respect to the Year 2000  Compliant
nature of any and all LLC Licensed Intellectual Property.

                  2.3.6 FINANCIAL STATEMENTS.  The LLC has delivered to OnHealth
an unaudited  balance sheet as of September 30 1999,  and the related  unaudited
statement of income for the nine months  ended  September  30, 1999  included in
Schedule  2.3.6 hereto (such balance sheet is referred to as the "LLC  FINANCIAL
STATEMENT").  Such LLC Financial Statement: (i) are in accordance with the books
and records of the LLC,  (ii)  present  fairly,  in all material  respects,  the
financial  position of the LLC as of the date  indicated  and the results of its
operations  for each of the periods  indicated,  and (iii) have been prepared in
accordance with generally accepted accounting  principles  consistently  applied
except (a) the unaudited Financial Statements do not contain footnotes,  and (b)
as described in the LLC Disclosure  Schedule.  There are no material off-balance
sheet  liabilities,  claims  or  obligations  of any  nature,  whether  accrued,
absolute,  contingent,  anticipated, or otherwise, whether due or to become due,
that are not shown or provided for either in the Financial Statements or the LLC
Disclosure  Schedule.  The  liabilities of the LLC were incurred in the ordinary
course of the LLC's business except as otherwise indicated in the LLC Disclosure
Schedule.  The "PRO FORMA CLOSING BALANCE SHEET" included in Schedule 2.3.6 sets
forth, based on reasonable assumptions relating to the operation of the business
conducted by the LLC, the projected  Balance  Sheet as of the estimated  Closing
Date.  A "FINAL PRO FORMA  CLOSING  BALANCE  SHEET"  will be  prepared,  and any
updates or revisions of such statement will be prepared,  on a basis  consistent
with the  Financial  Statement  (with the  proviso  that the Pro  Forma  Closing
Balance Sheets shall not be reviewed in accordance with applicable  standards of
the American Institute of Certified Public Accountants) and Schedule 2.3.6.

                  2.3.7 TAXES.  The LLC has timely filed (or caused to be filed)
all  federal,  state,  local and foreign tax  returns,  reports and  information
statements required to be filed by it, which returns, reports and statements are

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<PAGE>

true, correct and complete in all material respects, and paid all taxes required
to be paid by it as shown on such  returns,  reports and  statements.  All taxes
required  to be paid for all  Return  Periods  have  either  been  paid or fully
accrued on the books of the LLC. The LLC has fully  accrued on the LLC Financial
Statements  all of its unpaid taxes in respect of all periods (or the portion of
any such periods) subsequent to the Return Periods, and will accrue on the Final
Pro Forma  Closing  Balance  Sheet all unpaid  taxes with  respect to any period
ending after  September 30, 1999,  and through the Closing  Date.  The books and
records of the LLC have been kept on a tax basis. No deficiencies or adjustments
for any tax have been claimed, proposed or assessed, or to the best of the LLC's
knowledge,  threatened.  The LLC Disclosure  Schedule  accurately sets forth the
years for which the LLC's  federal and state income tax  returns,  respectively,
have been  audited and any years  which,  to the  knowledge  of the LLC, are the
subject of a pending audit by the Internal  Revenue  Service and the  applicable
state  agencies.  Except as so disclosed,  the LLC is not subject to any pending
or, to the best of the LLC's knowledge, threatened, tax audit or examination and
the LLC has not waived any statute of limitation  with respect to the assessment
of any tax which waiver  remains in effect.  The LLC has provided  OnHealth true
and correct copies of all tax returns,  information,  statements,  reports, work
papers  and other tax data  reasonably  requested  by  OnHealth.  No  consent or
agreement has been made under Section 341 of the Code by or on behalf of the LLC
or any predecessor thereof.

         There are no liens  for taxes  upon the  assets of the LLC  except  for
taxes that are not yet payable.  The LLC has not  participated in, or cooperated
with, an  international  boycott  within the meaning of Section 999 of the Code.
The LLC is not required to include in income any adjustment  pursuant to Section
481(a) of the Code (or similar  provisions of other law or  regulations)  in its
current or in any future  taxable  period,  by reason of a change in  accounting
method;  nor  does  the LLC have any  knowledge  that the IRS (or  other  taxing
authority)  has  proposed;  or is  considering,  any such  change in  accounting
method. The LLC is not a party to any agreement,  contract,  or arrangement that
would result in the payment of any "excess parachute payment" within the meaning
of  Section  280G  of the  Code  (or,  in the  case  of any  such  agreement  or
arrangement  to  which  it may be a  party,  shareholder  approval  of any  such
payments shall be obtained in accordance with Section 280G).  None of the assets
of the LLC is  property  that is  required  to be  treated as owned by any other
person  pursuant  to the  "safe  harbor  lease"  provisions  of  former  Section
168(f)(8)  of the  Internal  Revenue  Code  of  1954 as  amended  and in  effect
immediately prior to the enactment of the Tax Reform Act of 1986 and none of the
assets of the LLC is "tax  exempt use  property"  within the  meaning of Section
168(h) of the Code.  None of the assets of the LLC secures any debt the interest
on which is tax exempt under Section 103 of the Code.

                  2.3.8    LEASES IN EFFECT.  All leases of real and  personal
 property that the LLC is party to are set forth on the LLC Disclosure Schedule.

                  2.3.9 CERTAIN TRANSACTIONS.  None of the members of the LLC or
any member of any of their families,  is presently a party to, or was a party to
during the year preceding the date of this Agreement,  any transaction  with the
LLC,  including,   without  limitation,   any  contract,   agreement,  or  other
arrangement  (i)  providing  for  the  furnishing  of  services  to or by,  (ii)
providing for rental of real or personal property to or from, or (iii) otherwise

                                       30
<PAGE>

requiring payments to or from, any such person or any corporation,  partnership,
trust, or other entity in which any such person has or had a 5%-or-more interest
(as a shareholder,  partner, beneficiary, or otherwise) or is or was a director,
officer, employee, or trustee. None of the LLC's officers,  employees or members
has any  material  interest  in any  property,  real or  personal,  tangible  or
intangible, including inventions, copyrights, trademarks or trade names, used in
or  pertaining  to the  business of the LLC,  or any  supplier,  distributor  or
customer of the LLC,  except for the normal  rights of a member,  and except for
rights under existing employee benefit plans.

                  2.3.10 LITIGATION AND OTHER  PROCEEDINGS.  Neither the LLC nor
any of its  officers,  members or employees is a party to any pending or, to the
best knowledge of the LLC, threatened action, suit, labor dispute (including any
union representation proceeding),  proceeding,  investigation, or discrimination
claim in or by any court or governmental board, commission,  agency, department,
or officer, or any arbitrator,  arising from the actions or omissions of the LLC
or,  in the  case  of an  individual,  from  acts in his or her  capacity  as an
officer, director, or employee of the LLC which individually or in the aggregate
would be  materially  adverse to the LLC.  The LLC is not  subject to any order,
writ, judgment,  decree, or injunction that has a material adverse effect on the
LLC's Business Condition.

                  2.3.11  ABSENCE OF CERTAIN CHANGES AND EVENTS. Since September
30, 1999, there has not been:

                           (a)    Any  transaction  involving  more than $15,000
entered  into by the LLC other  than in the  ordinary  course of  business;  any
change (or any  development or combination of  developments of which the LLC has
knowledge  which is  reasonably  likely to result in such a change) in the LLC's
Business Condition,  other than changes in the ordinary course of business which
in the  aggregate  have  not  been  materially  adverse  to the  LLC's  Business
Condition;  or, without limiting the foregoing,  any loss of or damage to any of
the  properties  of the LLC due to fire or other  casualty,  or any other  loss,
whether or not insured, amounting to more than $15,000 in the aggregate;

                           (b)    Any  termination,  modification, or rescission
of, or waiver by the LLC of rights under, any existing contract having or likely
to have a material adverse effect on the LLC's Business Condition;

                           (c)    Any  discharge  or  satisfaction by the LLC of
any lien or encumbrance, or any payment of any obligation or liability (absolute
or  contingent)  other  than  current  liabilities  shown on the  balance  sheet
included in the LLC  Financial  Statements  as of  September  30,  1999,  in the
ordinary course of business; or

                           (e)    Any  mortgage,  pledge,  imposition  of  any
security  interest,  claim,  encumbrance,  or  other  restriction  on any of the
assets, tangible or intangible, of the LLC.

                  2.3.12  PERSONAL  PROPERTY.  The LLC has good  and  marketable
title,  free and  clear  of all  title  defects,  security  interests,  pledges,
options, claims, liens, encumbrances,  and restrictions of any nature whatsoever
(including,  without  limitation,  leases,  chattel mortgages,  conditional sale
contracts, purchase money security interests, collateral security arrangements,

                                       31
<PAGE>


and other title or interest-retaining agreements) to all inventory, receivables,
furniture,  machinery,  equipment,  and other  personal  property,  tangible  or
otherwise,  reflected on the balance sheet included in the Financial  Statements
or used in the LLC's  business as of the date of such balance  sheet even if not
reflected thereon,  except for acquisitions and dispositions since September 30,
1999 in the ordinary course of business.  The LLC Disclosure  Schedule lists (i)
all computer  equipment and (ii) all other personal property having a book value
of $5,000 or more, which are used by the LLC in the conduct of its business. All
such  equipment  and  property  are in  good  operating  condition  and  repair,
reasonable wear and tear excepted.

                  2.3.13  INSURANCE AND BANKING  FACILITIES.  The LLC Disclosure
Schedule  contains a complete and correct list of (i) all contracts of insurance
or indemnity of the LLC in force at the date of this Agreement  (including  name
of insurer or indemnitor,  agent, annual premium, coverage,  deductible amounts,
and expiration  date) and (ii) the names and locations of all banks in which the
LLC has accounts or safe deposit boxes, the designation of each such account and
safe  deposit box,  and the names of all persons  authorized  to draw on or have
access to each  such  account  and safe  deposit  box.  All  premiums  and other
payments  due from the LLC with  respect to any such  contracts  of insurance or
indemnity have been paid, and the LLC does not know of any fact, act, or failure
to act which has or might cause any such contract to be canceled or  terminated.
All material known claims for insurance or indemnity have been presented.

                  2.3.14  EMPLOYEES.  The LLC does not have any written contract
of employment or other  employment  agreement  with any of its employees that is
not terminable at will by the LLC. The LLC is not a party to any pending,  or to
the LLC's  knowledge,  threatened,  labor  dispute.  The LLC has complied in all
material  respects  with  all  applicable   federal,   state,  and  local  laws,
ordinances, rules and regulations and requirements relating to the employment of
labor,  including but not limited to the provisions  thereof  relating to wages,
hours,  collective  bargaining,  payment of Social  Security,  unemployment  and
withholding  taxes,  and ensuring  equality of  opportunity  for  employment and
advancement  of minorities  and women.  There are no claims  pending,  or to the
LLC's knowledge threatened to be brought, in any court or administrative  agency
by any former or current the LLC employees for  compensation,  pending severance
benefits,  vacation time,  vacation pay or pension benefits,  or any other claim
pending from any current or former  employee or any other person  arising out of
the LLC's  status as  employer,  whether  in the form of claims  for  employment
discrimination,   harassment,  unfair  labor  practices,   grievances,  wrongful
discharge or otherwise.

         2.3.15  EMPLOYEE  BENEFIT  PLANS.  Each bonus,  deferred  compensation,
pension,  profit  sharing,  retirement,   severance,   unemployment,   training,
vacation, tuition, dependent care, prepaid legal, cafeteria, stock option, stock
purchase, group insurance, health, disability,  accident, death benefit, welfare
and other employee benefit plan, fund, program,  arrangement or policy,  whether
formal or  informal  covering  active,  former or retired  employees  of the LLC
("PLAN") is listed and briefly described in the LLC Disclosure Schedule. The LLC
does not have any  commitment to create,  adopt or contribute to, any additional
plan covering any active, former or retired employee of the LLC. With respect to
each Plan (as applicable),  the LLC has delivered to OnHealth a copy of the Plan
document, summary plan description, summaries of  material  modifications  and

                                       32
<PAGE>



other material employee communications,  trust agreement,  annuity and insurance
contract, vendor services agreement, all determination letters received from the
Internal  Revenue  Service,  and all annual  reports  (Form 5500) filed with the
Internal Revenue Service. To the extent applicable,  each Plan complies,  in all
material  respects,  with the  requirements  of the Employee  Retirement  Income
Security Act of 1974 as amended  ("ERISA"),  and the Code, and any Plan intended
to be qualified  under  Section  401(a) of the Code has been  determined  by the
Internal  Revenue Service to be so qualified and has remained  tax-qualified  to
this  date and its  related  trust  is  tax-exempt  and has  been so  since  its
creation. No Plan is covered by Title IV of ERISA or Section 412 of the Code. No
"PROHIBITED  TRANSACTION,"  as defined in ERISA Section 406 or Code Section 4975
has  occurred  with  respect  to any  Plan.  Each Plan has been  maintained  and
administered in compliance with its terms and with the  requirements  prescribed
by any and all  statutes,  orders,  rules  and  regulations,  including  but not
limited to ERISA and the Code, which are applicable to such Plans.  There are no
pending or anticipated material claims against or otherwise involving any of the
Plans and no suit,  action or other  litigation  (excluding  claims for benefits
incurred in the ordinary course of Plan  activities) has been brought against or
with respect to any Plan. To the LLC's knowledge,  there are no current, pending
or  threatened  investigations,  audits or other  actions  or  proceedings  by a
governmental  entity with  respect to any Plan.  The LLC has no  obligation  for
retiree health and life benefits under any Plan,  except as set forth on the LLC
Disclosure  Schedule or as required to avoid excise taxes under Section  4980(B)
of the Code, and there are no  restrictions on the rights of the LLC to amend or
terminate any Plan without incurring any liability  thereunder.  The LLC has not
engaged in, nor is it a successor  or parent  corporation  to an entity that has
engaged in, a transaction  described in ERISA  Section 4069.  There have been no
amendments  to,  written  interpretation  of, or  announcement  (whether  or not
written) by the LLC relating to, or change in employee participation or coverage
under,  any Plan that would increase  materially the expense of maintaining such
Plan above the level of expense  incurred in respect  thereof for the year ended
December 31, 1997.  No tax under  Section 4980B of the Code has been incurred in
respect  of any  Plan  that  is a group  health  plan,  as  defined  in  Section
5000(b)(1) of the Code.

                  2.3.16  NO DEFAULTS.  The LLC is not, nor has the LLC received
notice that it would be with the passage of time, in default or violation of any
term,  condition  or  provision  of (i)  the LLC  Charter  Documents;  (ii)  any
judgment,  decree or order  applicable  to the LLC;  or (iii) any loan or credit
agreement, note, bond, mortgage, indenture,  contract, agreement, lease, license
or other instrument to which the LLC is now a party or by which it or any of its
properties  or assets may be bound,  except for defaults and  violations  which,
individually  or in the aggregate,  would not have a material  adverse effect on
the Business Condition of the LLC.

                  2.3.17  MAJOR CONTRACTS.  The LLC is not a party to or subject
to:

                           (a)    Any union contract, or any employment contract
or  arrangement  providing for future  compensation,  written or oral,  with any
officer, consultant, director or employee;

                           (b)    Any plan or contract or  arrangement,  written
or oral,  providing for bonuses,  pensions,  deferred  compensation,  retirement
payments, profit-sharing, or the like;


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<PAGE>


                           (c)    Any joint venture  contract or arrangement or
any other  agreement  which has  involved or is expected to involve a sharing of
profits;

                           (d)    Any  OEM  agreement,  distribution  agreement,
volume  purchase  agreement,  corporate  end user sales or service  agreement or
manufacturing  agreement in which the amount involved  exceeds  annually,  or is
expected to exceed in the  aggregate  over the life of the  contract  $25,000 or
pursuant  to which the LLC has granted or received  manufacturing  rights,  most
favored  nation  pricing  provisions  or  exclusive   marketing,   reproduction,
publishing or distribution  rights related to any product,  group of products or
territory;
                           (e)    Any lease for  real or personal  property  in
which the  amount of  payments  which the LLC is  required  to make on an annual
basis exceeds $10,000;

                           (f)    Any  material  agreement, license,  franchise,
permit, indenture or authorization which has not been terminated or performed in
its entirety and not renewed which may be, by its terms, terminated, impaired or
adversely affected by reason of the execution of this Agreement, the Closing, or
the consummation of the transactions contemplated hereby or thereby;

                           (g)    Except  for trade  indebtedness  incurred  in
the ordinary course of business, any instrument evidencing or related in any way
to  indebtedness  incurred in the  acquisition of companies or other entities or
indebtedness  for borrowed money by way of direct loan, sale of debt securities,
purchase money  obligation,  conditional  sale,  guarantee,  or otherwise  which
individually is in the amount of $15,000 or more;

                           (h)    Any  material  license   agreement, either  as
licensor or licensee  (excluding  nonexclusive  hardware and  software  licenses
granted  to  distributors  or  end-users  in the  ordinary  course  of  business
consistent with prior practice); or

                           (i)    Any contract containing  covenants  purporting
to limit the LLC's freedom to compete in any line of business in any  geographic
area.

         All  contracts,  arrangements,  plans,  agreements,  leases,  licenses,
franchises,   permits,   indentures,   authorizations,   instruments  and  other
commitments  which are listed in the LLC  Disclosure  Schedule  pursuant to this
Section  2.3.17 are valid and in full force and effect and the LLC has not, nor,
to the best  knowledge  of the LLC,  has any other party  thereto,  breached any
material provisions of, or is in default in any material respect under the terms
thereof.

                  2.3.18 MATERIAL RELATIONS.  To the LLC's knowledge,  as of the
date of  this  Agreement,  none of the  parties  to any of the  major  contracts
identified  in the LLC  Disclosure  Schedule  pursuant  to Section  2.3.17  have
terminated,  or expressed to the LLC an intent to materially reduce or terminate
the amount of its business with the LLC in the future.

                                       34
<PAGE>


                  2.3.19  CERTAIN  AGREEMENTS.  Except as  disclosed  in the LLC
Disclosure Schedule or as contemplated by this Agreement,  neither the execution
and  delivery  of this  Agreement,  nor  the  consummation  of the  transactions
contemplated  hereby  will:  (i) result in any  payment  by the LLC  (including,
without limitation,  severance,  unemployment  compensation,  parachute payment,
bonus or  otherwise)  becoming  due to any  director,  employee  or  independent
contractor of the LLC under any Plan,  agreement or otherwise,  (ii)  materially
increase any benefits  otherwise  payable under any Plan or agreement,  or (iii)
result  in the  acceleration  of the  time of  payment  or  vesting  of any such
benefits.

                  2.3.20  GUARANTEES AND  SURETYSHIPS.  The LLC has no powers of
attorney outstanding (other than those issued in the ordinary course of business
with  respect  to tax  matters),  the  LLC  has no  obligations  or  liabilities
(absolute or contingent) as guarantor,  surety,  cosigner,  endorser,  co-maker,
indemnitor,  or otherwise  respecting  the  obligations  or  liabilities  of any
person, corporation,  partnership, joint venture, association,  organization, or
other entity.

                  2.3.21  BROKERS  AND  FINDERS.  The LLC has not  retained  any
broker, finder, or investment banker in connection with this Agreement or any of
the  transactions  contemplated by this Agreement,  nor does or will the LLC owe
any  fee or  other  amount  to any  broker,  finder,  or  investment  banker  in
connection with this Agreement or the Mergers.

                  2.3.22  CERTAIN  PAYMENTS.  Neither  the LLC  nor to the  best
knowledge  of the LLC,  any person or other  entity  acting on behalf of the LLC
has,  directly or indirectly,  on behalf of or with respect to the LLC: (i) made
an unreported  political  contribution,  (ii) made or received any payment which
was not legal to make or receive,  (iii) engaged in any  transaction  or made or
received any payment  which was not  properly  recorded on the books of the LLC,
(iv) created or used any "off-book" bank or cash account or "slush fund", or (v)
engaged in any conduct constituting a violation of the Foreign Corrupt Practices
Act of 1977.

                  2.3.23  ENVIRONMENTAL MATTERS.  To the best knowledge of the
LLC:

                           (a)    There has not been a  discharge  or release on
any real property owned or leased by the LLC (the "REAL  PROPERTY"),  during the
period the Real  Property has been owned or leased by the LLC, of any  Hazardous
Material (as defined  below) by the LLC in  violation  of any federal,  state or
local statute,  regulation,  rule or order applicable to health,  safety and the
environment, including without limitation, contamination of soil, groundwater or
the environment,  generation,  handling, storage,  transportation or disposal of
Hazardous Materials or exposure to Hazardous Materials;

                           (b)    No Hazardous Material has been used by the LLC
in the operation of the LLC's business;

                           (c)    The LLC has not received from any Governmental
Entity or third  party any  request  for  information,  notice of claim,  demand
letter or other  notification,  notice or information  that the LLC is or may be
potentially subject to or responsible for any investigation or clean-up or other
remediation of Hazardous Material present on any Real Property;


                                       35
<PAGE>

                           (d)    There  have  been  no  environmental
investigations,studies, audits, tests, reviews or other analyses, the purpose of
which was to discover,  identify or otherwise  characterize the condition of the
soil,  groundwater,  air, or  presence  of asbestos at any of the Real  Property
sites;

                           (e)    There is no asbestos present in any Real
Property  presently  owned or  operated  by the LLC,  and no  asbestos  has been
removed from any Real Property while such Real Property was owned or operated by
the LLC; and
                           (f)    There are no underground  storage tanks on, in
or under any of the Real  Property and no  underground  storage  tanks have been
closed or removed from any Real Property which are or have been in the ownership
of the LLC.

         "HAZARDOUS  MATERIAL"  means  any  substance  (i) that is a  "hazardous
waste" or  "hazardous  substance"  under any  federal,  state or local  statute,
regulation, rule or order, (ii) that is toxic, explosive,  corrosive, flammable,
infectious,  radioactive,  or  otherwise  hazardous  and  is  regulated  by  any
Governmental  Entity,  (iii) the  presence of which on any of the Real  Property
causes  or  threatens  to cause a  nuisance  on any of the Real  Property  or to
adjacent  properties  or poses or  threatens  to pose a hazard to the  health or
safety of persons on or about any of the Real Property,  or (iv) the presence of
which on  adjacent  properties  could  constitute  a trespass by HDI or the then
current owner(s) of any of the Real Property.

                  2.3.24 DISCLOSURE.  Neither the  representations or warranties
made by the LLC in this Agreement,  nor the final LLC Disclosure Schedule or any
other  certificate  executed and delivered by the LLC pursuant to this Agreement
contains any untrue  statement of a material  fact, or omits to state a material
fact necessary to make the statements or facts  contained  herein or therein not
misleading in light of the circumstances under which they were furnished.

                  2.3.25 RELIANCE. The foregoing  representations and warranties
are made by the LLC with the knowledge and expectation  that OnHealth is placing
reliance thereon.

         2.4  REPRESENTATIONS AND WARRANTIES OF ONHEALTH AND THE SUBS. Except as
disclosed  in a  document  referring  specifically  to the  representations  and
warranties in this Agreement which  identifies by section number the section and
subsection to which such disclosure  relates and is delivered by OnHealth to the
Acquired  Companies  prior to the  execution of this  Agreement  (the  "ONHEALTH
DISCLOSURE SCHEDULE"),  OnHealth and each of the Subs represents and warrants to
HDI, DMI, HID LLC and the Shareholder as follows:

                  2.4.1 ORGANIZATION,  STANDING AND POWER.  OnHealth and each of
the Subs are corporations duly organized and validly existing,  or, with respect
to the Subs,  will be  validly  existing  as of the  Closing,  under the laws of
Washington and Colorado, respectively and have all requisite power and authority
to own, lease and operate their  properties and to carry on their  businesses as
now being conducted,  and are duly qualified and in good standing to do business


                                       36
<PAGE>


in each  jurisdiction  in which a failure to so  qualify would  have a  material
adverse effect on the Business Condition of OnHealth.

                  2.4.2 AUTHORITY.  The execution,  delivery, and performance of
this  Agreement  by OnHealth  and the Subs has been or will be as of the Closing
duly  authorized  by all  necessary  corporate  action of OnHealth and the Subs.
OnHealth and each of the Subs have duly and validly  executed and delivered this
Agreement,  and this Agreement  constitutes a valid,  binding,  and  enforceable
obligation of OnHealth and each of the Subs in accordance with its terms, except
as   enforcement   may  be  limited  by   applicable   bankruptcy,   insolvency,
reorganization,  moratorium,  or  similar  laws  affecting  the  enforcement  of
creditors'  rights  generally and except that the  availability of the equitable
remedy of specific performance or injunctive relief is subject to the discretion
of the court before which any proceeding may be brought.

                  2.4.3 COMPLIANCE WITH LAWS AND OTHER INSTRUMENTS.  Neither the
execution  and  delivery  of this  Agreement  by  OnHealth  and the Subs nor the
performance by OnHealth and the Subs of their  obligations  under this Agreement
will violate any provision of law or will conflict with, result in the breach of
any of the terms and conditions of, constitute a default under, permit any party
to  accelerate  any right under,  renegotiate  or  terminate,  require  consent,
approval,  or waiver by any party under,  or result in the creation of any lien,
charge,  or encumbrance or restriction  upon any of the properties,  assets,  or
shares of capital stock of OnHealth pursuant to any charter document of OnHealth
or  either  of the  Subs  or any  agreement  (including  government  contracts),
indenture,  mortgage,  franchise, license, permit, lease, or other instrument of
any kind to which OnHealth or either of the Subs is a party or by which OnHealth
or any of their  assets are bound or  affected.  No Consent of any  Governmental
Entity or third party is required by or with  respect to OnHealth in  connection
with  the  execution  and  delivery  of  this   Agreement  by  OnHealth  or  the
consummation by OnHealth of the transactions contemplated hereby or thereby, and
such other consents, authorizations,  filings, approvals and registrations which
if not obtained or made would not have a material  adverse  effect on OnHealth's
Business Condition.

                  2.4.4  FINANCIAL  STATEMENTS AND SEC  DOCUMENTS.  The OnHealth
Annual  Report on Form 10-K for the fiscal year ended  December 31, 1998 and all
documents filed with the SEC by OnHealth  (collectively the "SEC DOCUMENTS") and
the description of the OnHealth  Common Shares  included  therein are, as of the
time made, accurate and complete and contain no material misstatement or omit to
state any fact necessary to make the statements  therein not  misleading.  Since
September 30, 1998,  OnHealth has timely filed all documents  currently required
to be filed with the SEC pursuant to the 1934 Act and  otherwise  satisfies  all
applicable  requirements  for the use of the  Form S-3  Registration  Statement.
There are no "legal  proceedings,"  as defined in Item 103 of Regulation S-K, to
which  OnHealth or any of its  subsidiaries  is a party which are required to be
disclosed in the SEC Documents and have not been so disclosed.

                  2.4.5  CAPITAL SHARES.  The OnHealth  Common  Shares  issuable
pursuant to this  Agreement are duly  authorized  and reserved for issuance and,
when  issued in  accordance  with the terms of this  Agreement  will be  validly
issued, fully paid, nonassessable and not subject to any preemptive rights.  The

                                       37
<PAGE>


authorized,  issued and outstanding  capital shares of OnHealth are as set forth
in the SEC  Documents  as of the  dates  of the  financial  statements  or other
information included in the SEC Documents.

                  2.4.6  CAPITAL  STRUCTURE.  The  authorized  capital  stock of
OnHealth consists of 100,000,000  shares of OnHealth Common Shares and 1,000,000
preferred shares. All OnHealth Common Shares and other securities outstanding as
of August 31, 1999 are set forth in the prospectus of OnHealth, dated August 31,
1999 (the "Prospectus"). The authorized capital stock of the OnHealth, including
the  Shares,  conforms  in all  material  respects  to the  description  thereof
contained in the Prospectus.

                  2.4.7  DISCLOSURE.  Neither the representations  or warranties
made by OnHealth in this Agreement,  nor the final OnHealth  Disclosure Schedule
or any other  certificate  executed and  delivered by OnHealth  pursuant to this
Agreement,  nor the SEC  documents  when  taken  together,  contains  any untrue
statement of a material  fact,  or omits to state a material  fact  necessary to
make the statements or facts contained herein or therein not misleading in light
of the circumstances under which they were furnished.

                  2.4.8  BROKERS AND  FINDERS.  OnHealth  has not  retained  any
broker, finder, or investment banker in connection with this Agreement or any of
the transactions  contemplated by this Agreement,  nor does or will OnHealth owe
any fee or other amount to any other broker,  finder,  or  investment  banker in
connection with this Agreement or the Mergers.

                  2.4.9  RELIANCE.  The foregoing representations and warranties
are made by  OnHealth  with the  knowledge  and  expectation  that the  Acquired
Companies and the Shareholder are placing reliance thereon.

                                   ARTICLE III
                         COVENANTS OF ACQUIRED COMPANIES

         During the period from the date of this Agreement  (except as otherwise
indicated) and continuing until the earlier of the termination of this Agreement
or the  Effective  Time (or  later  where so  indicated),  each of the  Acquired
Companies and the Shareholder, jointly and severally, agree (except as expressly
contemplated  by this Agreement,  as specifically  permitted by the HDI, DMI and
LLC  Disclosure  Schedules or otherwise  permitted by  OnHealth's  prior written
consent):

         3.1      CONDUCT OF BUSINESS.

                  3.1.1 ORDINARY COURSE.  The Acquired  Companies shall carry on
their business in the usual,  regular and ordinary course in  substantially  the
same manner as  heretofore  conducted  and, to the extent  consistent  with such
business,  use all reasonable efforts consistent with past practice and policies
to preserve  intact its  present  business  organizations,  keep  available  the
services of its present  officers,  consultants,  and employees and preserve its
relationships with customers, suppliers, distributors and others having business
dealings with it.

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<PAGE>


 The  Acquired  Companies  shall  promptly  notify  OnHealth  of  any  event  or
occurrence or emergency  which is not in the ordinary  course of their  business
and which is material  and adverse to any of the  Acquired  Companies'  Business
Condition. The foregoing notwithstanding,  none of the Acquired Companies shall,
except as approved in writing by OnHealth:

                           (a)      enter into any commitment or transaction (i)
to be performed  over a period  longer than six months in  duration,  or (ii) to
purchase assets (other than raw materials,  supplies, or cash equivalents) for a
purchase price in excess of $10,000;

                           (b)      grant any bonus, severance,  or  termination
pay to any officer,  director, member, independent contractor or employee of any
of the Acquired  Companies,  other than  pursuant to agreements in effect on the
date hereof and described in any of the Acquired Companies' Disclosure Schedule;

                           (c)      enter into or amend any agreements  pursuant
to which any other party is granted marketing, publishing or distribution rights
of any type or scope with respect to any hardware or software products of any of
the Acquired Companies;

                           (d)      except  in  the ordinary course  of business
consistent  with  prior  practice,   enter  into  or  terminate  any  contracts,
arrangements,   plans,  agreements,  leases,  licenses,   franchises,   permits,
indentures,  authorizations,  instruments or commitments,  or amend or otherwise
change the terms thereof;

                           (e)      commence  a lawsuit other than: (i)  for the
routine  collection of bills,  (ii) in such cases where the particular  Acquired
Company in good faith determines that failure to commence suit would result in a
material impairment of a valuable aspect of that particular  company's business,
provided such Acquired Company consults with OnHealth prior to filing such suit,
or (iii) for a breach of this Agreement;

                           (f)      materially  modify  existing  discounts or
other terms and conditions with dealers, distributors and other resellers of any
of the Acquired Companies' products;

                           (g)      materially  modify the terms and  conditions
of existing corporate end user licenses or service agreements; or

                  3.1.2 DIVIDENDS, ISSUANCE OF OR CHANGES IN SECURITIES. None of
the Acquired  Companies shall: (i) declare or pay any dividends on or make other
distributions to its shareholders,  members or interest  holders,  as applicable
(whether in cash, shares or property),  (ii) issue, deliver, sell, or authorize,
propose or agree to, or commit to the issuance,  delivery, or sale of any shares
of its capital stock or membership  interests of any class, any Acquired Company
Voting Debt or any securities  convertible  into its capital stock, any options,
warrants,  calls,  conversion  rights,   commitments,   agreements,   contracts,
understandings, restrictions, arrangements or rights of any character obligating
the Acquired  Company to issue any such shares,  Acquired Company Voting Debt or
other  convertible  securities,  (iii) split,  combine or reclassify  any of its
capital stock or issue or authorize the issuance of any other securities in

                                       39
<PAGE>


respect  of, in lieu of or in  substitution  for shares of capital  stock of an
Acquired Company, (iv) repurchase or otherwise acquire,  directly or indirectly,
any shares of its capital  stock or  membership  interests  (except  pursuant to
rights under  existing  agreements  to  repurchase  shares upon  termination  of
employment or other service relationships), or (v) propose any of the foregoing.

                  3.1.3 GOVERNING DOCUMENTS.  None of  the  Acquired  Companies
shall amend its Charter Documents.

                  3.1.4 NO ACQUISITIONS.  None of the Acquired  Companies shall
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 make any such acquisition.

                  3.1.5 NO DISPOSITIONS.  None of the Acquired  Companies shall
sell, lease, license, transfer,  mortgage,  encumber or otherwise dispose of any
of its assets or cancel, release, or assign any indebtedness or claim, except in
the ordinary course of business consistent with prior practice.

                  3.1.6 INDEBTEDNESS.  None  of  the Acquired Companies shall
incur any  indebtedness  for borrowed money by way of direct loan,  sale of debt
securities,   purchase  money  obligation,   conditional  sale,  guarantee,   or
otherwise; provided that nothing shall preclude any Acquired Company's repayment
of existing debt  provided  that the funds are generated in the ordinary  course
and not a result of  "discounting,"  "writing  off" or  similar  adjustments  to
receivables  which are not in the  ordinary  course,  or the  result of sales of
products or assets for less than fair market value or other than in the ordinary
course.
                  3.1.7 COMPENSATION. None of the Acquired Companies shall adopt
or amend any Plan or pay any pension or retirement allowance not required by any
existing  Plan.  None of the Acquired  Companies  shall enter into or modify any
employment  contracts,  increase the salaries,  wage rates or fringe benefits of
its officers, directors or employees or pay bonuses or other remuneration except
for  current  salaries  and other  remuneration  for  which any of the  Acquired
Companies is obligated  pursuant to a written agreement a copy of which has been
provided to OnHealth.

                  3.1.8 CLAIMS.  None of the Acquired Companies shall settle any
claim,  action  or  proceeding,  except  in  the  ordinary  course  of  business
consistent with past practice.

         3.2 ACCESS TO PROPERTIES AND RECORDS. Throughout the period between the
date of this  Agreement and the Closing,  each of the Acquired  Companies  shall
give OnHealth and its  representatives  full access,  during reasonable business
hours but in such a manner as not unduly to disrupt the business of the Acquired
Companies,  to  their  premises,  properties,   contracts,  commitments,  books,
records, and affairs, and shall provide OnHealth with such financial, technical,
and operating data and other information  pertaining to its business as OnHealth


                                       40
<PAGE>


may request.  With an Acquired Company's  prior  consent,  which  shall  not  be
unreasonably withheld,  OnHealth shall be entitled to make appropriate inquiries
of third parties in the course of its investigation.  The LLC and OnHealth agree
that the non-disclosure agreement,  dated October 29, 1999 (the "CONFIDENTIALITY
AGREEMENT"),  between  the LLC and  OnHealth  shall  continue  in full force and
effect and shall be applicable to all Confidential  Materials (as defined in the
Confidentiality Agreement) received pursuant to this Agreement.

         3.3 BREACH OF  REPRESENTATIONS  AND WARRANTIES.  Except as specifically
permitted  by this  Agreement,  none of the  Acquired  Companies  shall take any
action that would cause or constitute a breach of any of the representations and
warranties set forth in Section 2.1, 2.2 or 2.3 respectively or that would cause
any of such  representations  and  warranties  to be  inaccurate in any material
respect.  In the event of, and promptly  after becoming aware of, the occurrence
of or the  pending or  threatened  occurrence  of any event that would  cause or
constitute such a breach or inaccuracy,  the Acquired Company will give detailed
notice  thereof to OnHealth and will use its best efforts to prevent or promptly
remedy such breach or inaccuracy.

         3.4 CONSENTS.  The  Acquired  Companies  will  promptly  apply  for or
otherwise seek, and use its best efforts to obtain,  all consents and approvals,
and make all filings, required with respect to the consummation of the Mergers.

         3.5 TAX RETURNS.  Each of the Acquired Companies shall promptly provide
OnHealth  with copies of all  income,  franchise  and sales or use tax  returns,
reports and  information  statements  that have been filed or are filed prior to
the Closing Date.

         3.6 KEY EMPLOYEES OF ACQUIRED  COMPANIES.  The Shareholder will use his
best  efforts  to have  those  employees  of the LLC set forth on  Schedule  3.6
execute an  employment  agreement  with  OnHealth in  substantially  the form as
attached as Exhibit 3.6.

         3.7 EXCLUSIVITY; ACQUISITION PROPOSALS. Unless and until this Agreement
shall have been  terminated by either party  pursuant to Article VIII hereof and
thereafter  subject to Section  8.6,  neither  the  Acquired  Companies  nor the
Shareholder  shall (and each shall use its best  efforts to ensure  that none of
its officers, directors,  members, interest holders, agents,  representatives or
affiliates) take or cause or permit any person to take,  directly or indirectly,
any of the  following  actions  with  any  party  other  than  OnHealth  and its
designees: (i) solicit, encourage,  initiate or participate in any negotiations,
inquiries or discussions with respect to any offer or proposal to acquire all or
any  significant  part of its  business,  assets or  capital  shares  whether by
merger, consolidation, other business combination, purchase of assets, tender or
exchange   offer  or  otherwise   (each  of  the  foregoing,   an   "ACQUISITION
TRANSACTION"), (ii) disclose, in connection with an Acquisition Transaction, any
information not  customarily  disclosed to any person other than OnHealth or its
representatives  concerning  the Acquired  Companies'  business or properties or
afford to any person other than OnHealth or its representatives or entity access
to its properties,  books or records,  except in the ordinary course of business
and as required by law or pursuant to a  governmental  request for  information,
(iii)  enter  into  or  execute  any  agreement   relating  to  an   Acquisition
Transaction, or (iv) make or authorize any public statement, recommendation or

                                       41
<PAGE>


solicitation in support of any Acquisition  Transaction or any offer or proposal
relating to an Acquisition Transaction other than with respect to the Mergers.

         3.8 NOTICE OF EVENTS.  Throughout  the period  between the date of this
Agreement and the Closing, the Acquired Companies shall promptly advise OnHealth
of any and  all  material  events  and  developments  concerning  its  financial
position, results of operations,  assets, liabilities, or business or any of the
items  or   matters   concerning   the   Acquired   Companies   covered  by  the
representations,  warranties,  and  covenants of the Acquired  Companies and the
Shareholder contained in this Agreement.

         3.9 COMMERCIALLY REASONABLE EFFORTS. Each of the Acquired Companies and
the Shareholder will use their commercially reasonable efforts to effectuate the
transactions  contemplated  hereby and to fulfill and cause to be fulfilled  the
conditions to Closing under this Agreement.

                                   ARTICLE IV
                              COVENANTS OF ONHEALTH

         During the period from the date of this Agreement and continuing  until
the earlier of the termination of this Agreement or the Effective Time (or later
where  so  indicated),   OnHealth  and  the  Subs  agree  (except  as  expressly
contemplated  by this  Agreement or with the prior  written  consent of the LLC)
that it will take or cause the following actions to be taken:

         4.1 BREACH OF REPRESENTATIONS AND WARRANTIES.  Neither OnHealth nor the
Subs will take any action which would cause or constitute a breach of any of the
representations and warranties set forth in Section 2.4 or which would cause any
of such representations and warranties to be inaccurate in any material respect.
In the event of, and promptly  after becoming aware of, the occurrence of or the
pending or  threatened  occurrence  of any event which would cause or constitute
such a breach or inaccuracy,  OnHealth will give detailed  notice thereof to the
Acquired  Companies and will use its best efforts to prevent or promptly  remedy
such breach or inaccuracy.

         4.2 REGULATION D. OnHealth shall as promptly as practicable provide the
Shareholder with the information relating to OnHealth as required by Rule 502(b)
of Regulation D.

         4.3 CONSENTS.  OnHealth will promptly apply for or otherwise  seek, and
use its best efforts to obtain,  all consents and  approvals,  and make filings,
required with respect to the consummation of the Mergers.

         4.4 BEST EFFORTS.  OnHealth and the Subs will use their best efforts to
effectuate the transactions  contemplated  hereby and to fulfill and cause to be
fulfilled the conditions to Closing under this Agreement.

         4.5 NASDAQ.  OnHealth  will cause the  OnHealth  Common  Shares  issued
pursuant to this Agreement to be listed on the Nasdaq  National  Market prior to
the effectiveness of the S-3.

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<PAGE>


                                    ARTICLE V
                              ADDITIONAL AGREEMENTS

         In  addition  to  the  foregoing,  OnHealth,  the  Subs,  the  Acquired
Companies and the Shareholder each agree to take the following actions after the
execution of this Agreement.

         5.1 INVESTMENT AGREEMENTS.  All resale of OnHealth Common Shares by the
New OnHealth  Shareholder  shall be subject to the  restrictions  imposed by the
investment agreements in the form attached as Exhibit 5.1 which shall be entered
into by the New OnHealth Shareholder and OnHealth (the "INVESTMENT AGREEMENT").

         5.2 AUDITED  FINANCIAL  STATEMENTS AND FORM 8-K. The  Shareholder  will
assist  OnHealth's  auditors,  after the Closing,  in the preparation of Audited
Financial  Statements for the year ending  December 31, 1998 and the nine months
ended  September 30, 1999,  in a timely  manner  pursuant to the 1934 Act and in
form  satisfactory  for  inclusion in an amendment  to the  OnHealth's  Form 8-K
disclosing the transactions contemplated by this Agreement.

         5.3  EXPENSES.  Whether or not Mergers are  consummated,  all costs and
expenses  incurred  in  connection  with  this  Agreement  and the  transactions
contemplated  hereby  and  thereby  shall be paid by the  party  incurring  such
expense.

         5.4 ADDITIONAL AGREEMENTS. In case at any time after the Effective Time
any  further  action  is  reasonably  necessary  or  desirable  to carry out the
purposes of this Agreement or to vest OnHealth,  as the sole  shareholder of HDI
and DMI with full title to all properties, assets, rights, approvals, immunities
and  franchises  of the LLC, the proper  officers  and  directors of each entity
which is a party to this Agreement shall take all such necessary action.

         5.5 PUBLIC ANNOUNCEMENTS.  Neither OnHealth, the Acquired Companies nor
the  Shareholder  shall  disseminate  any press  release  or other  announcement
concerning this Agreement or the transactions  contemplated  herein to any third
party (except to the directors,  officers,  members and employees of the parties
to this Agreement whose direct  involvement is necessary for the consummation of
the Mergers,  to the attorneys and accountants of the parties hereto,  or except
as OnHealth  determines  in good faith to be required by the federal  securities
laws after  consultation with the Acquired  Companies) without the prior written
consent  of each  of the  other  parties  hereto,  which  consent  shall  not be
unreasonably  withheld. It is anticipated that a mutually acceptable joint press
release shall be issued only after the Closing.

         5.6 TAX-FREE REORGANIZATION.  Neither OnHealth, the Shareholder nor the
Acquired  Companies  shall take any action,  either  prior to or  following  the
Closing,  that would cause the Mergers to fail to qualify as a  "reorganization"
within the  meaning of Section  368 of the Code.  OnHealth  agrees  that it will
treat the OnHealth  Common Shares  delivered  pursuant to the Mergers  solely as
consideration for the shares of HDI and DMI.


                                       43
<PAGE>


         5.7  ADDITIONAL  PAYMENTS.  After the Closing,  OnHealth will pay those
bonuses  that  have  been  accrued  on the LLC  Closing  Balance  Sheet to those
individuals,  and in the  amounts,  set forth on  Schedule  5.7.  At  OnHealth's
option,  such  bonuses  may be paid in the  form of  cash,  non-qualified  stock
options to purchase OnHealth Common Shares or OnHealth Common Shares.

                                   ARTICLE VI
                              CONDITIONS PRECEDENT

         6.1 CONDITIONS TO EACH PARTY'S OBLIGATION TO EFFECT THE STOCK PURCHASE.
The  respective   obligation  of  each  party  to  effect  the  stock  purchases
contemplated by this Agreement shall be subject to the satisfaction prior to the
Closing Date of the following conditions:

                  6.1.1  GOVERNMENTAL  APPROVALS.  All Consents of  Governmental
Entities  legally  required for the  consummation of the Mergers shall have been
filed,  occurred,  or been  obtained,  other than such  Consents,  for which the
failure to obtain would have no material  adverse effect on the  consummation of
the Mergers or the other  transactions  contemplated  hereby or on the  Business
Condition of OnHealth or any of the Acquired Companies.

                  6.1.2 NO RESTRAINTS.  No statute, rule, regulation,  executive
order,  decree or injunction  shall have been enacted,  entered,  promulgated or
enforced  by any  United  States  court  or  Governmental  Entity  of  competent
jurisdiction  which  enjoins  or  prohibits  the  consummation  of  any  of  the
transactions contemplated by this Agreement.

         6.2 CONDITIONS OF  OBLIGATIONS OF ONHEALTH.  The obligation of OnHealth
to  effect  the  Closing  are  subject  to the  satisfaction  of  the  following
conditions unless waived by OnHealth:

                  6.2.1  REPRESENTATIONS  AND WARRANTIES OF EACH OF THE ACQUIRED
COMPANIES AND THE SHAREHOLDER. The representations and warranties of each of the
Acquired Companies and the Shareholder set forth in this Agreement shall be true
and correct in all material  respects as of the date of this Agreement and as of
the  Closing  Date as  though  made on and as of the  Closing  Date,  except  as
otherwise  contemplated  by this  Agreement.  OnHealth  shall  have  received  a
certificate signed by the Shareholder, individually, and from an officer of each
of the Acquired Companies to such effect on the Closing Date.

                  6.2.2  PERFORMANCE  OF  OBLIGATIONS  OF EACH  OF THE  ACQUIRED
COMPANIES  AND  THE  SHAREHOLDER.   Each  of  the  Acquired  Companies  and  the
Shareholder  shall have  performed in all material  respects all  agreements and
covenants  required to be  performed by them under this  Agreement  prior to the
Closing  Date,  and OnHealth  shall have  received a  certificate  signed by the
Shareholder, individually, and from an officer of each of the Acquired Companies
to such effect on the Closing Date.

                  6.2.3    INVESTMENT  AGREEMENT.  OnHealth  shall have received
a duly  executed  Investment  Agreement  substantially  in the form  attached as
Exhibit 5.1 from the Shareholder

                                       44
<PAGE>


which shall include  representations,  warranties  and  agreements  relating to
sales of OnHealth Common Shares in forms satisfactory to OnHealth.

                  6.2.4 EMPLOYMENT AGREEMENT. Shareholder shall have executed an
employment  and  non-competition  agreement,  the form of which is  attached  as
Exhibit 6.2.4.

                  6.2.5  REQUIRED  EMPLOYEES.  Each of the Employees on Schedule
3.6 shall have  accepted an offer of  employment  with OnHealth and expressed no
indication of not becoming an employee of OnHealth as of the Closing.

                  6.2.6 LEGAL ACTION.  There shall not be overtly  threatened or
pending  any  action,  proceeding  or  other  application  before  any  court or
Governmental   Entity  brought  by  any  person  or  Governmental   Entity:  (i)
challenging or seeking to restrain or prohibit the  consummation of the Mergers,
or seeking to obtain any damages caused by such transactions which if successful
would have a material adverse effect on the viability of such  transactions;  or
(ii) seeking to prohibit or impose any  limitations  on OnHealth's  ownership or
operation of all or any portion of the Acquired  Companies'  business or assets,
or to compel  OnHealth to dispose of or hold  separate all or any portion of its
or the Acquired  Companies'  business or assets as a result of the Mergers which
if  successful  would have a material  adverse  effect on the  viability of such
transactions.

                  6.2.7  OPINION OF  COUNSEL.  OnHealth  shall have  received an
opinion  dated as of the  Closing  Date of Faegre & Benson  LLP,  counsel to the
Acquired  Companies and the  Shareholder,  substantially in the form attached as
Exhibit 6.2.7.

                  6.2.8  CONSENTS.  OnHealth  shall have  received duly executed
copies  of  all   third-party   consents,   approvals,   assignments,   waivers,
authorizations or other  certificates  contemplated by this Agreement or the any
of the Acquired Companies'  Disclosure  Schedules or reasonably deemed necessary
by OnHealth's  legal counsel to provide for the  continuation  in full force and
effect of any and all  material  contracts  and  leases  of any of the  Acquired
Companies  and for  OnHealth to  consummate  the  Mergers in form and  substance
reasonably satisfactory to OnHealth, except for such thereof as OnHealth and the
Acquired Companies shall have agreed in writing shall not be obtained.

                  6.2.9  TERMINATION  OF  RIGHTS  AND  CERTAIN  SECURITIES.  Any
registration rights, rights of refusal, rights to any liquidation preference, or
redemption  rights  relating to any  security of any of the  Acquired  Companies
shall have been  terminated or waived as of the Closing.  No warrants,  options,
convertible  securities or other rights to purchase or acquire any securities of
any of the Acquired Companies shall be outstanding.

                  6.2.10  FINAL PRO FORMA  CLOSING  BALANCE  SHEET.  Each of the
Acquired Companies shall have provided OnHealth with its Final Pro Forma Closing
Balance Sheet which shall have been prepared in good faith, in a form reasonably
satisfactory to OnHealth and shall not reflect a material  adverse change in any
of the Acquired  Companies  from the  respective  Acquired  Companies' Pro Forma
Balance Sheet.

                                       45
<PAGE>

                  6.2.11 NOTE  CANCELLATION.  G.D. Searle & Co. ("SEARLE") shall
have canceled in full, or agreed to cancel in full at the  Effective  Time,  all
notes  payable in favor of Searle by any of the Acquired  Companies,  including,
without  limitation,  the  note  dated  December  18,  1998,  together  with any
obligations  of  any of the  Acquired  Companies  set  forth  in the  applicable
agreements surrounding the issuance of such notes, including, but not limited to
the Security  Agreement  (including a full release of Searle's security interest
in the assets of the of the Acquired Companies),  Pledge Agreement and Guarantee
between  Searle  and the  LLC and the  Members,  all  such  documentation  to be
reasonably  acceptable to counsel to OnHealth.  Such  cancellations and releases
may be  cross-conditioned  on the  receipt by Searle of OnHealth  Common  Shares
having a value equal to the existing  indebtedness,  including  interest,  under
notes of the  Acquired  Companies  in favor of  Searle  (based  on the  OnHealth
Average Price).

                  6.2.12   CONTINGENT  SHARE  LETTER.   Shareholder  shall  have
executed  and  delivered  to  OnHealth,  and  OnHealth  shall have  accepted,  a
Contingent Share Letter, substantially as set forth as Exhibit 6.2.12.

         6.3 CONDITIONS OF OBLIGATION OF THE ACQUIRED COMPANIES.  The obligation
of Acquired  Companies to effect the Closing is subject to the  satisfaction  of
the following conditions unless waived by the Acquired Companies:

                  6.3.1 REPRESENTATIONS AND WARRANTIES OF ONHEALTH AND THE SUBS.
The  representations  and  warranties of OnHealth and the Subs set forth in this
Agreement  shall be true and correct in all material  respects as of the date of
this  Agreement  and as of the  Closing  Date  as  though  made on and as of the
Closing  Date,  except as  otherwise  contemplated  by this  Agreement,  and the
Acquired  Companies  shall  have  received  a  certificate  signed  on behalf of
OnHealth  by an officer of  OnHealth  and each of the Subs to such effect on the
Closing Date. For purposes of affirming the accuracy of the  representations and
warranties of OnHealth made as of the Closing, the term "SEC Documents" shall be
deemed to include all  registration  statements,  reports and proxy  statements,
including all  amendments  thereto,  filed by OnHealth with the  Securities  and
Exchange Commission after the date of this Agreement and prior to Closing.

                  6.3.2  PERFORMANCE OF OBLIGATIONS OF ONHEALTH.  OnHealth shall
have performed in all material respects all agreements and covenants required to
be performed by them under this  Agreement  prior to the Closing  Date,  and the
Acquired  Companies  shall  have  received  a  certificate  signed  on behalf of
OnHealth  by an officer of  OnHealth  and each of the Subs to such effect on the
Closing Date.

                  6.3.3 OPINION OF ONHEALTH'S  COUNSEL.  The Acquired  Companies
and the  Shareholder  shall have  received an opinion  dated the Closing Date of
Preston  Gates & Ellis  LLP,  counsel  to  OnHealth,  substantially  in the form
attached as Exhibit 6.3.3.

                  6.3.5 LEGAL ACTION.  There shall not be overtly  threatened or
pending  any  action,  proceeding  or  other  application  before  any  court or
Government  Entity brought by any person,  entity or  Governmental  Entity:  (i)
challenging or seeking to restrain or prohibit the consummation of the Mergers,


                                       46
<PAGE>


or seeking to obtain any material  damages  from the  Acquired  Companies or the
Shareholder  as a result of the  Mergers,  or (ii) seeking to prohibit or impose
any  limitations  on OnHealth's  ownership or operation of all or any portion of
its business or assets, or to compel OnHealth to dispose of or hold separate all
or any portion of its  business  or assets as a result of the  Mergers  which if
successful  would  have a  material  adverse  effect  on the  viability  of such
business or assets;  provided that the Acquired Companies shall automatically be
deemed to waive this condition if OnHealth agrees to indemnify,  defend and hold
any such named party harmless against any such action.

                  6.3.6  CONSENTS.  The Acquired  Companies  shall have received
duly  executed  copies  of all  third-party  consents,  approvals,  assignments,
waivers,  authorizations or other certificates contemplated by this Agreement or
the applicable Acquired Companies' Disclosure Schedule.

                                   ARTICLE VII
                                 INDEMNIFICATION

         7.1 INDEMNIFICATION  RELATING TO AGREEMENT.  Subject to the limitations
in Section 7.4, the  Shareholder  shall,  defend,  indemnify,  and hold OnHealth
harmless from and against,  and reimburse  OnHealth with respect to, any and all
losses, damages, liabilities, claims, judgments,  settlements, fines, costs, and
expenses (including attorneys' fees)  ("INDEMNIFIABLE  AMOUNTS") of every nature
whatsoever  incurred by OnHealth by reason of or arising out of or in connection
with (i) any  breach,  or any claim  (including  claims by  parties  other  than
OnHealth)  that if true,  would  constitute  a  breach,  by any of the  Acquired
Companies or the Shareholder of any  representation  or warranty of the Acquired
Companies or the  Shareholder  contained in this Agreement or in any certificate
delivered to OnHealth  pursuant to the  provisions of this  Agreement,  (ii) the
failure,  partial or total, of any of the Acquired  Companies or the Shareholder
to perform any agreement or covenant  required by this Agreement to be performed
by it or them,  and  (iii)  any  federal  or state tax  liability,  or  asserted
liability of any of the Acquired  Companies  relating to operations prior to the
Closing.  There shall be no right of contribution from the Acquired Companies or
any successors to the Acquired Companies.

         7.2 THIRD PARTY CLAIMS.  With respect to any claims or demands by third
parties,  whenever  OnHealth  shall have  received a written  notice that such a
claim or demand has been  asserted or  threatened,  OnHealth  shall  notify each
Shareholder of such claim or demand and of the facts within OnHealth's knowledge
that relate  thereto  within a  reasonable  time after  receiving  such  written
notice,  but in no event later than fifteen (15) business days following receipt
thereof.  The  Shareholder s shall then have the right to contest,  negotiate or
settle  any such  claim or  demand  through  counsel  of  their  own  selection,
reasonably  satisfactory  to OnHealth  and solely at their own cost,  risk,  and
expense,  which costs and expenses  shall be payable out of the Total Escrow (as
defined in the Escrow Agreement).  Notwithstanding the preceding  sentence,  the
Shareholder shall not settle,  compromise,  or offer to settle or compromise any
such  claim or demand  without  the prior  written  consent of  OnHealth,  which
consent  shall not be  unreasonably  withheld.  By way of  illustration  and not
limitation  it is  understood  that  OnHealth  may  object  to a  settlement  or
compromise which includes any provision which in its reasonable judgment may

                                       47
<PAGE>


have an adverse  impact on or  establish an adverse  precedent  for the Business
Condition of OnHealth or any of its  Subsidiaries.  OnHealth  shall not have the
right to object to a  settlement  which  consists  solely  of the  payment  of a
monetary damage amount and which is subject to full  indemnification  under this
Agreement.  If the  Shareholder  fails to give written notice to OnHealth of his
intention  to  contest or settle any such  claim or demand  within  twenty  (20)
calendar days after OnHealth has notified the Shareholder that any such claim or
demand has been made in writing and received by OnHealth,  or if any such notice
is  given  but any  such  claim  or  demand  is not  promptly  contested  by the
Shareholder,  OnHealth shall have the right to satisfy and discharge the same by
payment,  compromise,  or otherwise, in accordance with the procedures set forth
in the Escrow Agreement.  OnHealth may also, if it so elects and entirely within
its own discretion,  defend any such claim or demand if the Shareholder  fail to
give notice of the  Shareholder's  intention to contest or settle any such claim
or demand,  in which  event  OnHealth  and its  affiliates  shall be entitled to
indemnification to the full extent permitted by this Article VII for any and all
costs,  losses,   liabilities,   and  expenses  whatsoever,   including  without
limitation  reasonable attorneys' and other professional fees, that OnHealth may
sustain,  suffer, incur, or become subject to as a result of OnHealth's decision
to  defend  any such  claim or  demand.  Notwithstanding  any of the  foregoing,
OnHealth shall have the sole right to conduct any tax audit or other tax contest
relating to the  OnHealth  tax return.  In the event any  Indemnifiable  Amounts
arise out of such audits, OnHealth will notify the Shareholder and allow each to
comment  on any  written  submissions  relating  to any  Indemnifiable  Amounts,
OnHealth will consult in good faith with the  Shareholder  regarding the conduct
of any audit.

         7.3 BINDING EFFECT. The indemnification  obligations of the Shareholder
contained  in this  Article VII are an integral  part of this  Agreement  in the
absence of which OnHealth would not have entered into this Agreement.

         7.4 TAX  CONSEQUENCES.  As  stated  in  Sections  1.6 and 5.8 it is the
intent of the parties  that the Mergers  are  intended to be a  "reorganization"
within  the  meaning  of Section  368 of the Code,  and no party  shall take any
position inconsistent with this interpretation.  However no party or its counsel
shall have any obligation,  of indemnification or otherwise,  in the event it is
determined that the tax consequences  differ from those intended other than as a
result of a breach by OnHealth of the covenant set forth in Section 5.6 or those
described in the proxy statement/private  memorandum or otherwise.  This Section
shall not be deemed to override the provisions contained in Section 5.6.

         7.5  LIMITATIONS.  The liability of the  Shareholder and sole remedy of
OnHealth  for any breach of  representation,  warranty or covenant or any claim,
cause of action or right of any nature in connection  with this Agreement  shall
be  determined  solely  under  this  Article  VII and  shall be  subject  to the
following limitations:

                  7.5.1 THRESHOLD.  Notwithstanding  any other provision in this
Article V, Parent  shall be entitled to  indemnification  only if the  aggregate
Indemnifiable   Amounts  exceed  Twenty-five  Thousand  Dollars  ($25,000)  (the
"THRESHOLD  AMOUNT"),  provided  that any  amounts  relating  to legal  expenses
payable by Company shall not be subject to the Threshold Amount; and

                                       48
<PAGE>


provided  further that at such time as the amount to which  OnHealth is entitled
to be indemnified exceeds the Threshold Amount, OnHealth shall be entitled to be
indemnified up to the full Indemnifiable Amounts including the Threshold Amount.

                  7.5.2 TIME LIMIT.  The  provisions  of this  Article VII shall
apply only to Indemnifiable Amounts which are incurred or relate to claims which
are asserted or overtly threatened within eighteen months from the Closing Date;
provided that the  Shareholder  shall have received notice of such claims within
thirty (30) days of the eighteen  month  anniversary  of the  Closing;  provided
further (i) that the  obligation of the  Shareholder  to indemnify  OnHealth for
breaches of the  representations,  warranties  and covenants in Sections  2.1.7,
2.2.7 and 2.3.7  relating to taxes (as defined in Section  2.1.7) shall continue
until  thirty (30) days after the  expiration  of all  statutes  of  limitations
applicable  to such  taxes  and (ii) that  obligations  of the  Shareholder  for
Indemnifiable  Amounts arising out of fraud or willful  misstatements or willful
omissions of any of the Acquired  Companies or the Shareholder will have no time
limit (other than as provided under applicable laws).

                  7.5.3 ESCROW. The sum of all Indemnifiable  Amounts to be paid
by  the  Shareholder   shall  not  exceed  and  shall  be  satisfied  solely  by
consideration  held by the Custodian  pursuant to the Escrow Agreement and shall
not be a personal liability of the Shareholder, provided that the obligations of
any of the Acquired  Companies and the  Shareholder  for  Indemnifiable  Amounts
arising out of breaches of the  representations,  warranties in Sections  2.1.7,
2.2.7 and 2.3.7  relating  to taxes (as  defined  in  Section  2.1.7),  fraud or
willful  misstatements  or willful  omissions by the  Shareholder  or any of the
Acquired Companies,  or claims by Searle,  shall not be subject to the foregoing
limitation.

         7.6 GENERAL. The indemnification  provisions of this Article VII are in
addition to any other  remedy in law or equity  available  to  OnHealth  for any
breach of representation,  warranty or covenant or any claim, cause of action or
right of any nature in connection  with this  Agreement.  OnHealth  shall act in
good faith and in a manner commercially reasonable to mitigate any Indemnifiable
Amounts it may suffer.

                                  ARTICLE VIII
                                   TERMINATION

         8.1 MUTUAL  AGREEMENT.  This  Agreement  may be  terminated at any time
prior to the Effective  Time by the written  consent of OnHealth and each of the
Acquired Companies.

         8.2  TERMINATION  BY ONHEALTH.  This  Agreement  may be  terminated  by
OnHealth or the Subs alone,  by means of written  notice to each of the Acquired
Companies,  if there has been a material breach by any of the Acquired Companies
or the Shareholder of any  representation,  warranty,  covenant or agreement set
forth in the Agreement or other ancillary agreements,  which breach has not been
cured within (10) ten business  days  following  receipt by each of the Acquired
Companies of notice of such breach.

                                       49
<PAGE>


         8.3  TERMINATION  BY THE  ACQUIRED  COMPANIES.  This  Agreement  may be
terminated by any of the Acquired Companies alone, by means of written notice to
OnHealth,  if  (i)  there  has  been  a  material  breach  by  OnHealth  of  any
representation,  warranty,  covenant or agreement  set forth in the Agreement or
other  ancillary  agreements,  which  breach has not been cured  within (10) ten
business days following receipt by OnHealth of notice of such breach or (ii) the
OnHealth  Average  Price is  greater  than  $8.00  per  share.  In the event the
Acquired Companies terminate pursuant to (ii) above, then the Acquired Companies
shall pay OnHealth a break-up fee in the amount of $40,000.

         8.4 OUTSIDE DATE. This Agreement may be terminated by OnHealth alone or
by any of the Acquired Companies alone by means of written notice if the Closing
does not  occur  on or prior to  December  31,  1999,  and if such  delay in the
Closing is not caused by the terminating party.

         8.5  EFFECT  OF  TERMINATION.  In the  event  of  termination  of  this
Agreement  by either  OnHealth or any of the  Acquired  Companies as provided in
this  Article  VIII,  this  Agreement  shall  forthwith  become void and have no
effect,  and there shall be no liability or  obligation on the part of OnHealth,
the Acquired Companies,  or their respective  officers,  directors or members or
the  Shareholder,  except that (i) the provisions of Sections 5.3, 5.3, and 9.2,
and the  Confidentiality  Agreement  shall  survive  any  such  termination  and
abandonment,  and (ii) no party shall be released or relieved from any liability
arising  from the  willful  breach by such party of any of its  representations,
warranties, covenants or agreements as set forth in this Agreement.

                                   ARTICLE IX
                                  MISCELLANEOUS

         9.1 ENTIRE  AGREEMENT.  This  Agreement,  including  the  exhibits  and
schedules  delivered  pursuant to this  Agreement  contains all of the terms and
conditions  agreed  upon by the parties  relating to the subject  matter of this
Agreement  and  supersede all prior  agreements,  negotiations,  correspondence,
undertakings,  and  communications  of the  parties,  whether  oral or  written,
respecting that subject matter.

         9.2  GOVERNING  LAW.  Agreement  shall be governed by, and construed in
accordance  with, the laws of the State of  Washington,  except as to matters of
corporate  merger law,  which will be governed by, and  construed in  accordance
with the law of the State of Colorado.  Each of the Acquired  Companies  and the
Shareholder  consents to jurisdiction  and venue in the state and federal courts
in King County, Washington.

         9.3 NOTICES.  All notices,  requests,  demands or other  communications
which are required or may be given pursuant to the terms of this Agreement shall
be in writing  and shall be deemed to have been duly  given:  (i) on the date of
delivery if  personally  delivered  by hand,  (ii) upon the third day after such
notice is (a)  deposited in the United  States mail,  if mailed by registered or
certified mail,  postage  prepaid,  return receipt  requested,  or (b) sent by a
nationally  recognized  overnight  express  courier,  or (iii) by facsimile upon


                                       50
<PAGE>


written  confirmation  (other than the automatic  confirmation  that is received
from the  recipient's  facsimile  machine) of receipt by the  recipient  of such
notice:

         IF TO ONHEALTH:                    OnHealth Network Company
         ---------------                    808 Howell, Suite 400
                                            Seattle, Washington 98101
                                            Attention: Ron Stevens
                                            Telephone No.: (206) 381-0221
                                            Facsimile No.: (206) 652-8665

         WITH A COPY TO:                    Preston Gates & Ellis LLP
         --------------                     5000 Columbia Center
                                            701 Fifth Avenue
                                            Seattle, WA 98104-7078
                                            Attention:  C. Kent Carlson
                                            Telephone No.:  (206) 623-7580
                                            Facsimile No.: (206) 623-7022

         IF TO THE ACQUIRED COMPANIES:      Health Decisions International, LLC
                                            1667 Cole Blvd., #19, Suite 350
                                            Golden, Colorado 80401
                                            Attention: Donald M. Vickery, M.D.
                                            Telephone No.: (303) 278-1700
                                            Facsimile No.:  (303) 384-1696

         WITH A COPY TO:
                                            Faegre & Benson LLP
                                            2500 Republic Plaza
                                            370 Seventeenth Street
                                            Denver, CO 80202
                                            Attention:  William J. Campbell
                                            Telephone No.: (303)592-9000
                                            Facsimile No.: (303) 820-0600

         Such addresses may be changed,  from time to time, by means of a notice
given in the manner provided in this Section 9.3.

         9.4  SEVERABILITY.  If any  provision  of this  Agreement is held to be
unenforceable  for any reason,  it shall be  modified  rather  than  voided,  if
possible, in order to achieve the intent of the parties to this Agreement to the
extent  possible.  In any event, all other provisions of this Agreement shall be
deemed valid and enforceable to the full extent.

         9.5  SURVIVAL OF  REPRESENTATIONS  AND WARRANTIES.  All representations
and warranties contained in this Agreement, including the exhibits and schedules


                                       51
<PAGE>


delivered pursuant to this Agreement, shall survive the Effective Time; provided
that  except as  otherwise  set forth in  Section  7.4.2,  such  survival  shall
terminate eighteen (18) months from the Effective Time.

         9.6 ASSIGNMENT.  No party to this Agreement may assign, by operation of
law or otherwise, all or any portion of its rights,  obligations, or liabilities
under this  Agreement  without the prior  written  consent of the other party to
this Agreement,  which consent may be withheld in the absolute discretion of the
party asked to grant such consent. Any attempted assignment in violation of this
Section  9.6  shall be  voidable  and  shall  entitle  the  other  party to this
Agreement to terminate this Agreement at its option.

         9.7  COUNTERPARTS.  This  Agreement  may be  executed  in  two or  more
partially  or fully  executed  counterparts  each of which  shall be  deemed  an
original  and  shall  bind  the  signatory,  but  all of  which  together  shall
constitute  but one and the same  instrument.  The  execution  and delivery of a
Signature  Page - Agreement  and Plan of  Reorganization  in the form annexed to
this  Agreement by any party hereto who shall have been furnished the final form
of this Agreement shall  constitute the execution and delivery of this Agreement
by such party.

         9.8  AMENDMENT.  This  Agreement  may  not  be  amended  except  by  an
instrument in writing signed on behalf of each of the parties hereto.

         9.9  EXTENSION,  WAIVER.  At any time prior to the Effective  Time, any
party  hereto may, to the extent  legally  allowed:  (i) extend the time for the
performance  of any of the  obligations or other acts of the other party hereto,
(ii) waive any inaccuracies in the  representations  and warranties made to such
party contained herein or in any document  delivered  pursuant hereto, and (iii)
waive  compliance  with any of the  agreements,  covenants or conditions for the
benefit of such party  contained  herein.  Any  agreement on the part of a party
hereto to any such  extension  or waiver  shall be valid only if set forth in an
instrument in writing signed on behalf of such party.

         9.10  INTERPRETATION.  When a reference  is made in this  Agreement  to
Sections,  Exhibits or Schedules,  such reference shall be to a Section, Exhibit
or Schedule to this Agreement unless otherwise  indicated.  The words "include,"
"includes," and "including" when used therein shall be deemed in each case to be
followed by the words "without  limitation."  The  "knowledge  of," "the best of
knowledge  of," or other  derivations  of "know"  with  respect to the  Acquired
Companies  will mean the knowledge of the  Shareholder in each case assuming the
exercise of reasonable  inquiry  either  directly or by  representatives  on his
behalf. The table of contents, index to defined terms, and headings contained in
this  Agreement are for reference  purposes only and shall not affect in any way
the meaning or interpretation of this Agreement.

         9.11   CONFIDENTIALITY.   Each  of  the  Acquired   Companies  and  the
Shareholder  agree  to  use  their  commercially   reasonable  efforts  to  keep
confidential  and not to  disclose to third  parties  (except to advisors of the
Shareholder  and the  Acquired  Companies  for the  purposes of  evaluating  and
consummating  this  Agreement)  the  terms  and  conditions  of  this  Agreement
specifically  including  without  limitation  the Final  Valuation and number of
OnHealth  Common  Shares to be issued  and to advise  all  officers,  directors,

                                       52
<PAGE>


members and  employees  of the  Acquired  Companies  of this  obligation  and to
indemnify  and hold  OnHealth  harmless  from any  breach of this  agreement  in
accordance  with the provisions of Article VII.  Notwithstanding  the foregoing,
after having given prior notice to OnHealth,  the  Shareholder may disclose such
terms and conditions as is reasonably  necessary to comply with applicable laws,
regulations, or government rules, or orders of any court or governmental entity.

         9.12 ARBITRATION. The parties shall endeavor to resolve all disputes by
agreement  and to  that  end  shall  each  provide  the  other  with  sufficient
descriptions   and  information   regarding  its  position  to  permit  informed
assessments and decisions.  Any disagreement,  claim,  demand,  controversy,  or
dispute which arises after the Closing in any way relating to this Agreement and
the performance or alleged breach by the parties, whether involving questions of
law or fact or both and regardless of the nature thereof or the remedy therefor,
which is not settled by agreement of the parties  shall be resolved  pursuant to
the arbitration provisions in Section 2.3.3 of the Escrow Agreement.

                    [Remainder Of Page Intentionally Omitted]

                                       53
<PAGE>


              SIGNATURE PAGE - AGREEMENT AND PLAN OF REORGANIZATION


         IN WITNESS WHEREOF, OnHealth, HDISub, DMISub, HDI, DMI, the LLC and the
Shareholder have executed this Agreement as of the date first written above.

ONHEALTH NETWORK COMPANY                        HEALTH DECISIONS, INC.



By \S\ RON STEVENS, VICE PRESIDENT        By  DONALD M. VICKERY, PRESIDENT
   --------------------------------          ----------------------------
         Ron Stevens, Vice President              Donald M. Vickery, President


HDISUB, INC.                                                DMISUB, INC.



By \S\ RON STEVENS, VICE PRESIDENT        By \S\ RON STEVENS, VICE PRESIDENT
   ---------------------------------         ------------------------------
        Ron Stevens, Vice President               Ron Stevens, Vice President
DEMAND MANAGEMENT, INC.                      HEALTH DECISIONS INTERNATIONAL, LLC



By \S\ DONALD M. VICKERY                         By \S\ DONALD M. VICKERY
   ---------------------------------                ---------------------------
        Donald M. Vickery, President                      Donald M. Vickery

SHAREHOLDER:


\S\ DONALD M. VICKERY
---------------------
Donald M. Vickery


                                       54
<PAGE>


                                TABLE OF CONTENTS
                                                                            PAGE


   RECITALS____________________________________________________________________1

                              ARTICLE I THE MERGERS

   1.1   Effective Time of the Mergers_________________________________________1

   1.2   Closing_______________________________________________________________2

   1.3   Effects of the Mergers________________________________________________2

   1.4   Conversion of HDI and DMI Shares______________________________________2

   1.5   Final Valuation_______________________________________________________2

   1.6   Humana Restricted Shares______________________________________________3

   1.7   Escrow Securities_____________________________________________________3

   1.8   Delivery of Certificates______________________________________________3

   1.9   Tax-Free Reorganization_______________________________________________3

   1.10  No Further Ownership Rights in HDI and DMI Shares_____________________3

   1.11  Regulation D and Form S-3 Registration Statement______________________4
      1.11.1  Regulation D Offering____________________________________________4
      1.11.2  S-3 Registration Statement_______________________________________4

   1.12  Payments made on behalf of Acquired Companies at Closing______________5

                    ARTICLE II REPRESENTATIONS AND WARRANTIES

   2.1.  Representations and Warranties of HDI and the Shareholder_____________5
      2.1.1   Organization, Standing and Power_________________________________5
      2.1.2   Capital Structure________________________________________________6
      2.1.3   Authority________________________________________________________6
      2.1.4   Compliance with Laws and Other Instruments_______________________6
      2.1.5   Technology and Intellectual Property Rights______________________7
      2.1.6   Financial Statements____________________________________________11
      2.1.7   Taxes___________________________________________________________11
      2.1.8   Leases in Effect________________________________________________12
      2.1.9   Certain Transactions____________________________________________12
      2.1.10  Litigation and Other Proceedings________________________________12
      2.1.11  No Defaults_____________________________________________________13
      2.1.12  Major Contracts_________________________________________________13
      2.1.13  Material Relations______________________________________________14
      2.1.14  Employees_______________________________________________________14
      2.1.15  Certain Agreements______________________________________________14
      2.1.16  Guarantees and Suretyships______________________________________14
      2.1.17  Brokers and ____________________________________________________14
      2.1.18  Certain Payments________________________________________________15
      2.1.19  Disclosure______________________________________________________15
      2.1.20  Reliance________________________________________________________15

   2.2.1 Representations and Warranties of DMI and the Shareholder____________15
         2.2.1  Organization, Standing and Power______________________________15




                                       i
<PAGE>


      2.2.2    Capital Structure______________________________________________15
      2.2.3    Authority______________________________________________________16
      2.2.4    Compliance with Laws and Other Instruments_____________________16
      2.2.5    Technology and Intellectual Property Rights____________________17
      2.2.6    Financial Statements___________________________________________20
      2.2.7    Taxes__________________________________________________________20
      2.2.8    Leases in Effect_______________________________________________21
      2.2.9    Certain Transactions___________________________________________21
      2.2.10   Litigation and Other Proceedings_______________________________22
      2.2.11   No Defaults____________________________________________________22
      2.2.12   Major Contracts________________________________________________22
      2.2.13   Material Relations_____________________________________________23
      2.2.14   Employees______________________________________________________23
      2.2.15   Certain Agreements_____________________________________________23
      2.2.16   Guarantees and Suretyships_____________________________________23
      2.2.17   Brokers and Finders____________________________________________24
      2.2.18   Certain Payments_______________________________________________24
      2.2.19   Disclosure_____________________________________________________24
      2.2.20   Reliance_______________________________________________________24

   2.3.1 Representations and Warranties of the LLC____________________________24
      2.3.1    Organization, Standing and Power_______________________________24
      2.3.2    Capital Structure______________________________________________25
      2.3.3    Authority______________________________________________________25
      2.3.4    Compliance with Laws and Other Instruments_____________________25
      2.3.5    Technology and Intellectual Property Rights____________________26
      2.3.6    Financial Statements___________________________________________29
      2.3.7    Taxes__________________________________________________________29
      2.3.8    Leases in Effect_______________________________________________30
      2.3.9    Certain Transactions___________________________________________30
      2.3.10   Litigation and Other Proceedings_______________________________31
      2.3.11   Absence of Certain Changes and Events__________________________31
      2.3.12   Personal Property______________________________________________31
      2.3.13   Insurance and Banking Facilities_______________________________32
      2.3.14   Employees______________________________________________________32
      2.3.15   Employee Benefit Plans_________________________________________32
      2.3.16   No Defaults____________________________________________________33
      2.3.17   Major Contracts________________________________________________33
      2.3.18   Material Relations_____________________________________________34
      2.3.19   Certain Agreements_____________________________________________35
      2.3.20   Guarantees and Suretyships_____________________________________35
      2.3.21   Brokers and Finders____________________________________________35
      2.3.22   Certain Payments_______________________________________________35
      2.3.23   Environmental Matters__________________________________________35
      2.3.24   Disclosure_____________________________________________________36
      2.3.25   Reliance_______________________________________________________36

   2.4 Representations and Warranties of OnHealth and the Subs________________36
      2.4.1    Organization, Standing and Power_______________________________36
      2.4.2    Authority______________________________________________________37
      2.4.3    Compliance with Laws and Other Instruments_____________________37
      2.4.4    Financial Statements and SEC Documents_________________________37
      2.4.5    Capital Shares_________________________________________________37
      2.4.6    Capital Structure______________________________________________38

                                       ii
<PAGE>


      2.2.7    Disclosure_____________________________________________________38
      2.4.8    Brokers and Finders____________________________________________38
      2.4.9    Reliance_______________________________________________________38

                 ARTICLE III COVENANTS OF THE ACQUIRED COMPANIES

   3.1 Conduct of Business____________________________________________________38
      3.1.1    Ordinary Course________________________________________________38
      3.1.2    Dividends, Issuance of or Changes in Securities________________39
      3.1.3    Governing Documents____________________________________________40
      3.1.4    No Acquisitions________________________________________________40
      3.1.5    No Dispositions________________________________________________40
      3.1.6    Indebtedness___________________________________________________40
      3.1.7    Compensation___________________________________________________40
      3.1.8    Claims_________________________________________________________40

   3.2   Access to Properties and Records_____________________________________40

   3.3   Breach of Representations and Warranties_____________________________41

   3.4   Consents_____________________________________________________________41

   3.5   Tax Returns__________________________________________________________41

   3.6   Key Employees of Acquired Companies__________________________________41

   3.7   Exclusivity; Acquisition Proposals___________________________________41

   3.8   Notice of Events_____________________________________________________42

   3.9   Best Efforts_________________________________________________________42

                        ARTICLE IV COVENANTS OF ONHEALTH

   4.1   Breach of Representations and Warranties_____________________________42

   4.2   Regulation D_________________________________________________________42

   4.3   Consents_____________________________________________________________42

   4.4   Best Efforts_________________________________________________________42

   4.5   Nasdaq_______________________________________________________________42

                         ARTICLE V ADDITIONAL AGREEMENTS

   5.1   Investment Agreements________________________________________________43

   5.2   Audited Financial Statements and Form 8-K____________________________43

   5.3   Expenses_____________________________________________________________43

   5.4   Additional Agreements________________________________________________43

   5.5   Public Announcements_________________________________________________43

   5.6   Tax-Free Reorganization______________________________________________43

                         ARTICLE VI CONDITIONS PRECEDENT

   6.1   Conditions to Each Party's Obligation to Effect the Stock Purchase___44
      6.1.1  Governmental Approvals___________________________________________44
      6.1.2  No Restraints____________________________________________________44

                                      iii
<PAGE>


    6.2 Conditions of Obligations of OnHealth_________________________________44
      6.2.1    Representations and Warranties of each of the
                 Acquired Companies and the Shareholder_______________________44
      6.2.2    Performance of Obligations of each of the
                 Acquired Companies and the Shareholder_______________________44
      6.2.3    Investment Agreement___________________________________________44
      6.2.4    Employment Agreement___________________________________________45
      6.2.5    Required Employees_____________________________________________45
      6.2.6    Legal Action___________________________________________________45
      6.2.7    Opinion of Counsel_____________________________________________45
      6.2.8    Consents_______________________________________________________45
      6.2.9    Termination of Rights and Certain Securities___________________45
      6.2.10   Final Pro Forma Closing Balance Sheet__________________________45
      6.2.11   Note Cancellation______________________________________________46
      6.2.12   Contingent Share Letter________________________________________46

   6.3 Conditions of Obligation of the Acquired Companies_____________________46
      6.3.1    Representations and Warranties of OnHealth and the Subs________46
      6.3.2    Performance of Obligations of OnHealth_________________________46
      6.3.3    Opinion of OnHealth's Counsel__________________________________46
      6.3.5    Legal Action___________________________________________________46
      6.3.6    Consents_______________________________________________________47

                           ARTICLE VII INDEMNIFICATION

   7.1   Indemnification Relating to Agreement________________________________47

   7.2   Third Party Claims___________________________________________________47

   7.3   Binding Effect_______________________________________________________48

   7.4   Tax Consequences_____________________________________________________48

   7.5   Limitations__________________________________________________________48

   7.6   General______________________________________________________________49

                            ARTICLE VIII TERMINATION

   8.1   Mutual Agreement_____________________________________________________49

   8.2   Termination by OnHealth______________________________________________49

   8.3   Termination by the Acquired Companies________________________________50

   8.4   Outside Date_________________________________________________________50

   8.5   Effect of Termination________________________________________________50

                            ARTICLE IX MISCELLANEOUS

   9.1   Entire Agreement_____________________________________________________50

   9.2   Governing Law________________________________________________________50

   9.3   Notices______________________________________________________________50

   9.4   Severability_________________________________________________________51

   9.5   Survival of Representations and Warranties___________________________51

   9.6   Assignment___________________________________________________________52

   9.7   Counterparts_________________________________________________________52


                                       iv
<PAGE>



   9.8   Amendment____________________________________________________________52

   9.9   Extension, Waiver____________________________________________________52

   9.10  Interpretation_______________________________________________________52

   9.11  Confidentiality______________________________________________________52


   9.12  Arbitration__________________________________________________________53



                                       v
<PAGE>




                             INDEX OF DEFINED TERMS


                        TERM                      PAGE DEFINED



Term                                 Page Defined


1933 Act.....................................4
1934 Act.....................................5
accredited investor..........................4
Acquired Companies...........................1
Acquisition Transaction.....................43
Agreement....................................1
Business Condition...........................6
CBCA.........................................1
Closing......................................2
Closing Date.................................2
Code.........................................4
Confidentiality Agreement...................42
Consents.....................................7
DMI .........................................1
DMI Charter Documents.......................16
DMI Disclosure Schedule.....................16
DMI Exchange Ratio...........................2
DMI Financial Statements....................21
DMI Intellectual Property...................18
DMI Licensed Intellectual Property..........18
DMI Owned Intellectual Property.............18
DMI Pro Forma Closing Balance Sheet.........21
DMI Purchase Price...........................2
DMI Shares...................................2
DMI Surviving Corporation....................2
DMI Voting Debt.............................17
DMISub.......................................1
Effective Time...............................1
ERISA.......................................34
Escrow Agreement.............................3
Escrow Shares................................3
Final DMI Pro Forma Closing Balance Sheet...21
Final HDI Pro Forma Closing Balance Sheet...12
Final Pro Forma Closing Balance Sheet.......30
Final Valuation..............................3
Governmental Entity..........................7
Hazardous Material..........................37
HDI......................................... 1
HDI Charter Documents........................6
HDI Disclosure Schedule......................5
HDI Financial Statements....................11
HDI Intellectual Property....................8
HDI Licensed Intellectual Property...........8
HDI Owned Intellectual Property..............8
HDI Pro Forma Closing Balance Sheet.........11
HDI Purchase Price...........................2
HDI Shares...................................2
HDI Surviving Corporation....................2
HDI Voting Debt..............................7
HDISub.......................................1
Humana.......................................3
Humana Restricted Shares.....................3
Indemnifiable Amounts.......................49
Investment Agreement........................44
LLC..........................................1
LLC Charter Documents.......................25
LLC Disclosure Schedule.....................25
LLC Financial Statements....................30
LLC Intellectual Property...................27
LLC Licensed Intellectual Property..........28

                                       vi
<PAGE>

LLC Owned Intellectual Property.............28
LLC Voting Debt.............................26
Members.....................................25
Merger Documents.............................1
Mergers......................................1
Net Assets...................................3
New OnHealth Holders.........................4
OnHealth.....................................1
OnHealth Common Shares.......................2
OnHealth Disclosure Schedule................38
Plan........................................34
plan of reorganization.......................4
Pro Forma Closing Balance Sheet.............30
prohibited transaction......................34
prospects....................................6
Real Property...............................36
reorganization...............................4
Return Periods..............................12
S-3..........................................4
Searle......................................47
SEC Documents...............................39
Shareholder..................................1
Subs.........................................1
Subsidiary...................................6
tax.........................................12
taxes.......................................12
Threshold Amount............................51
Year 2000 Compliant.........................11


                                       2
<PAGE>






                            ONHEALTH NETWORK COMPANY

                                  HDISUB, INC.

                                  DMISUB, INC.

                       HEALTH DECISIONS INTERNATIONAL, LLC

                             DEMAND MANAGEMENT, INC.

                             HEALTH DECISIONS, INC.

                                DONALD M. VICKERY

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



                      AGREEMENT AND PLAN OF REORGANIZATION


                          Dated as of November 19, 1999



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