DOUBLECLICK INC
8-K, 1999-07-22
ADVERTISING
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<PAGE>


                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

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

                                    FORM 8-K

                                 CURRENT REPORT


                     PURSUANT TO SECTION 13 OR 15(d) OF THE

                         SECURITIES EXCHANGE ACT OF 1934



Date of Report (Date of earliest event reported)     JULY 12, 1999



                                DOUBLECLICK INC.
               (Exact name of registrant as specified in charter)



         DELAWARE                     000-23709               13-3870996
(State or other jurisdiction        (Commission               (IRS
Employer of incorporation)          File Number)          Identification No.)



41 MADISON AVENUE, 32ND FLOOR, NEW YORK, NEW YORK                10010
(Address of principal executive offices)                       (Zip Code)


Registrant's telephone number, including area code            (212)683-0001

<PAGE>


                                 NOT APPLICABLE
         (Former name or former address, if changed since last report.)


ITEM 5   OTHER EVENTS

     On July 12, 1999, DoubleClick Inc. ("DoubleClick") entered into an
Agreement and Plan of Merger and Reorganization (the "Merger Agreement") with
NetGravity, Inc., a Delaware corporation ("NetGravity"), pursuant to which
DoubleClick has agreed to acquire NetGravity. A copy of the Merger Agreement is
attached hereto as EXHIBIT 2.1 and incorporated herein by reference. The
acquisition is to be effected through the issuance of 0.28 shares of DoubleClick
common stock in exchange for each share of common stock of NetGravity
outstanding immediately prior to the consummation of the transaction and the
assumption of NetGravity's outstanding stock options based on such exchange
ratio. The amount of such consideration was determined based upon arm's-length
negotiations between DoubleClick and NetGravity. The transaction is intended to
qualify as a tax-free reorganization under the Internal Revenue Code of 1986, as
amended, and is intended to be accounted for as a pooling of interests. The
consummation of the transaction is subject to the satisfaction of certain
conditions, including the approval of the stockholders of NetGravity.

     In connection with the transaction, DoubleClick and certain affiliates of
NetGravity also entered into a Stockholder Agreement on July 12, 1999, pursuant
to which certain affiliates of NetGravity beneficially owning approximately 22%
of the outstanding common stock of NetGravity have agreed to vote in favor of
approval of the Merger Agreement. A copy of the Stockholder Agreement is
attached hereto as EXHIBIT 10.1 and incorporated herein by reference.

     A copy of the press release announcing the merger agreement with NetGravity
is attached hereto as EXHIBIT 99.1 and incorporated herein by reference.


<TABLE>
<CAPTION>
ITEM 7            FINANCIAL STATEMENTS AND EXHIBITS
<S>               <C>               <C>
         (c)      EXHIBITS.         The following documents are filed as exhibits to this report:

                  2.1               Agreement and Plan of Merger and Reorganization dated as of
                                    July 12, 1999 by and among DoubleClick Inc.,
                                    NJ Merger Corporation and NetGravity , Inc.

                  10.1              Stockholder Agreement dated as of July 12, 1999 by and
</TABLE>


<PAGE>


<TABLE>
<S>               <C>               <C>
                                    between DoubleClick Inc. and certain affiliates of NetGravity, Inc.

                  99.1              Press Release dated July 13, 1999.
</TABLE>


<PAGE>



                                    SIGNATURE

     Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.

                                      DoubleClick Inc.


Date: July 21, 1999
                                      By: /s/ Stephen R. Collins
                                         ---------------------------------------
                                      Chief Financial Officer



<PAGE>


                                  EXHIBIT INDEX

<TABLE>
<CAPTION>

Exhibit
<S>               <C>
2.1               Agreement and Plan of Merger and Reorganization dated as of
                  July 12, 1999 by and among DoubleClick Inc., NJ Merger Corporation and
                  NetGravity, Inc.

10.1              Stockholder Agreement dated as of July 12, 1999 by and
                  between DoubleClick Inc. and certain affiliates of NetGravity, Inc.

99.1              Press Release dated July 13, 1999.
</TABLE>



<PAGE>

                                                                     EXHIBIT 2.1


                 AGREEMENT AND PLAN OF MERGER AND REORGANIZATION

                                      among

                                DOUBLECLICK INC.,

                              NJ MERGER CORPORATION

                                       and

                                NETGRAVITY, INC.


                            Dated as of July 12, 1999




<PAGE>


                                TABLE OF CONTENTS
<TABLE>
<CAPTION>

                                                                                                               PAGE
<S>                                                                                                             <C>
ARTICLE I DEFINITIONS                                                                                            2

         SECTION 1.01 Certain Defined Terms                                                                      2

ARTICLE II THE MERGER                                                                                            6

         SECTION 2.01 The Merger                                                                                 6

         SECTION 2.02 Closing                                                                                    6

         SECTION 2.03 Effective Time                                                                             6

         SECTION 2.04 Effect of the Merger                                                                       6

         SECTION 2.05 Certificate of Incorporation; Bylaws; Directors and Officers of Surviving Corporation      6

ARTICLE III CONVERSION OF SECURITIES; EXCHANGE OF CERTIFICATES                                                   7

         SECTION 3.01 Conversion of Shares                                                                       7

         SECTION 3.02 Exchange of Shares Other than Treasury Shares                                              8

         SECTION 3.03 Stock Transfer Books                                                                      10

         SECTION 3.04 No Fractional Share Certificates                                                          10

         SECTION 3.05 Options to Purchase Company Common Stock                                                  10

         SECTION 3.06 Unvested Stock                                                                            11

         SECTION 3.07 Certain Adjustments                                                                       12

ARTICLE IV REPRESENTATIONS AND WARRANTIES OF COMPANY                                                            12

         SECTION 4.01 Organization and Qualification; Subsidiaries                                              13

         SECTION 4.02 Certificate of Incorporation and Bylaws                                                   13

         SECTION 4.03 Capitalization                                                                            13

         SECTION 4.04 Authority Relative to This Agreement                                                      14

         SECTION 4.05 No Conflict; Required Filings and Consents                                                15

         SECTION 4.06 Permits; Compliance with Laws                                                             15

         SECTION 4.07 SEC Filings; Financial Statements                                                         16

         SECTION 4.08 Absence of Certain Changes or Events                                                      16

         SECTION 4.09 Employee Benefit Plans; Labor Matters                                                     17

         SECTION 4.10 Pooling; Certain Tax Matters                                                              20

         SECTION 4.11 Contracts                                                                                 20

         SECTION 4.12 Litigation                                                                                20

         SECTION 4.13 Environmental Matters                                                                     21

         SECTION 4.14 Intellectual Property                                                                     21

         SECTION 4.15 Taxes                                                                                     23
</TABLE>

<PAGE>

<TABLE>
<S>                                                                                                             <C>
         SECTION 4.16 Insurance                                                                                 24

         SECTION 4.17 Properties                                                                                24

         SECTION 4.18 Affiliates                                                                                25

         SECTION 4.19 Opinion of Financial Advisor                                                              25

         SECTION 4.20 Brokers                                                                                   25

         SECTION 4.21 Certain Business Practices                                                                25

         SECTION 4.22 Section 203 of the DGCL Not Applicable                                                    26

         SECTION 4.23 Business Activity Restriction                                                             26

ARTICLE V REPRESENTATIONS AND WARRANTIES OF PARENT                                                              26

         SECTION 5.01 Organization and Qualification; Subsidiaries                                              26

         SECTION 5.02 Certificate of Incorporation and Bylaws                                                   27

         SECTION 5.03 Capitalization                                                                            27

         SECTION 5.04 Authority Relative to this Agreement                                                      28

         SECTION 5.05 No Conflict; Required Filings and Consents                                                28

         SECTION 5.06 SEC Filings; Financial Statements                                                         29

         SECTION 5.07 Pooling; Certain Tax Matters                                                              29

         SECTION 5.08 Opinion of Financial Advisor                                                              30

         SECTION 5.09 Brokers                                                                                   30

         SECTION 5.10 Affiliates                                                                                30

ARTICLE VI COVENANTS                                                                                            30

         SECTION 6.01 Conduct of Business by Company Pending the Closing                                        30

         SECTION 6.02 Notices of Certain Events                                                                 33

         SECTION 6.03 Access to Information; Confidentiality                                                    33

         SECTION 6.04 No Solicitation of Transactions                                                           34

         SECTION 6.05 Tax-Free Transaction; Pooling                                                             35

         SECTION 6.06 Control of Operations                                                                     35

         SECTION 6.07 Further Action; Consents; Filings                                                         35

         SECTION 6.08 Additional Reports                                                                        36

         SECTION 6.09 Tax Information                                                                           36

ARTICLE VII ADDITIONAL AGREEMENTS                                                                               36

         SECTION 7.01 Registration Statement; Proxy Statement                                                   36

         SECTION 7.02 Stockholders'Meeting                                                                      38

         SECTION 7.03 Affiliates                                                                                39

         SECTION 7.04 Directors'and Officers'Indemnification and Insurance                                      39

         SECTION 7.05 No Shelf Registration                                                                     40

         SECTION 7.06 Public Announcements                                                                      40

         SECTION 7.07 NNM Listing                                                                               41
</TABLE>

<PAGE>

<TABLE>
<S>                                                                                                             <C>

         SECTION 7.08 Blue Sky                                                                                  41

         SECTION 7.09 Employee Benefit Matters                                                                  41

ARTICLE VIII CONDITIONS TO THE MERGER                                                                           41

         SECTION 8.01 Conditions to the Obligations of Each Party to Consummate the Merger                      41

         SECTION 8.02 Conditions to the Obligations of Company                                                  42

         SECTION 8.03 Conditions to the Obligations of Parent                                                   43

ARTICLE IX TERMINATION, AMENDMENT AND WAIVER                                                                    44

         SECTION 9.01 Termination                                                                               44

         SECTION 9.02 Effect of Termination                                                                     46

         SECTION 9.03 Amendment                                                                                 46

         SECTION 9.04 Waiver                                                                                    46

         SECTION 9.05 Termination Fee; Expenses                                                                 46

ARTICLE X GENERAL PROVISIONS                                                                                    47

         SECTION 10.01 Non-Survival of Representations and Warranties                                           47

         SECTION 10.02 Notices                                                                                  47

         SECTION 10.03 Severability                                                                             48

         SECTION 10.04 Assignment; Binding Effect; Benefit                                                      49

         SECTION 10.05 Incorporation of Exhibits                                                                49

         SECTION 10.06 Governing Law                                                                            49

         SECTION 10.07 Waiver of Jury Trial                                                                     49

         SECTION 10.08 Headings; Interpretation                                                                 50

         SECTION 10.09 Counterparts                                                                             50

         SECTION 10.10 Entire Agreement                                                                         50
</TABLE>
<TABLE>
<CAPTION>

                                     ANNEXES
<S>                     <C>
ANNEX A                 Form of Stockholder Agreement

ANNEX B                 Form of Company Affiliate Agreement

ANNEX C                 Form of Parent Affiliate Agreement

ANNEX D                 Form of Employment Agreement
</TABLE>


<PAGE>


                 AGREEMENT AND PLAN OF MERGER AND REORGANIZATION

     AGREEMENT AND PLAN OF MERGER AND REORGANIZATION, dated as of July 12, 1999
(as amended, supplemented or otherwise modified from time to time, this
"AGREEMENT"), among DOUBLECLICK INC., a Delaware corporation ("PARENT"),
NETGRAVITY, INC., a Delaware corporation ("COMPANY"), and NJ MERGER CORPORATION,
a Delaware corporation and a direct wholly owned subsidiary of Parent ("MERGER
SUB"):


                              W I T N E S S E T H:

     WHEREAS, the boards of directors of Parent and Company have determined that
it is advisable and in the best interests of their respective companies and
stockholders to enter into a business combination by means of the merger of
Merger Sub with and into Company (the "MERGER") and have approved and adopted
this Agreement;

     WHEREAS, concurrently with the execution of this Agreement and as an
inducement to Parent to enter into this Agreement, certain stockholders of
Company have entered into a stockholder agreement (each, a "STOCKHOLDER
AGREEMENT") in the form attached hereto as Annex A;

     WHEREAS, upon the terms and subject to the conditions of this Agreement and
in accordance with the General Corporation Law of the State of Delaware (the
"DGCL"), Parent will acquire all of the common stock of Company through the
merger of Merger Sub with and into Company;

     WHEREAS, for financial reporting purposes, it is intended that the Merger
be accounted for as a "pooling of interests" under United States generally
accepted accounting principles ("U. S. GAAP") and the accounting standards of
the United States Securities and Exchange Commission (the "SEC"); and

     WHEREAS, for United States Federal income tax purposes, it is intended that
the Merger shall qualify as a tax-free reorganization under Section 368(a) of
the Internal Revenue Code of 1986, as amended (together with the rules and
regulations promulgated thereunder, the "CODE"), and that this Agreement shall
be, and hereby is, adopted as a plan of reorganization for purposes of Section
368 of the Code;

     NOW, THEREFORE, in consideration of the foregoing and the representations,
warranties, covenants and agreements set forth herein, and other good and
valuable consideration, the receipt and adequacy of which are hereby
acknowledged, and intending to be legally bound hereby, the parties hereto
hereby agree as follows:


<PAGE>


ARTICLE I
                                   DEFINITIONS

SECTION 1.01      CERTAIN DEFINED TERMS

     Unless the context otherwise requires, the following terms, when used in
this Agreement, shall have the respective meanings specified below (such
meanings to be equally applicable to the singular and plural forms of the terms
defined):

     "AFFILIATE" shall mean, with respect to any person, any other person that
controls, is controlled by or is under common control with the first person.

     "BLUE SKY LAWS" shall mean state securities or "blue sky" laws.

     "BUSINESS DAY" shall mean any day on which the principal offices of the SEC
in Washington, D.C. are open to accept filings, or, in the case of determining a
date when any payment is due, any day on which banks are not required or
authorized by law or executive order to close in New York.

     "COMPANY DISCLOSURE SCHEDULE" shall mean the disclosure schedule delivered
by Company to Parent prior to the execution of this Agreement and forming a part
hereof.

     "COMPANY MATERIAL ADVERSE EFFECT" shall mean any change in or effect on
the business of Company and the Company Subsidiaries that, individually or in
the aggregate (taking into account all other such changes or effects), is, or
is reasonably likely to be, materially adverse to the business, liabilities,
financial condition or results of operations of Company and the Company
Subsidiaries, taken as a whole, except to the extent any such change or
effect results from or is attributable to (i) changes in general economic
conditions or changes affecting the industry generally in which Company
operates (provided that such changes do not affect Company in a materially
disproportionate manner), (ii) any litigation or loss of current or
prospective customers, employees or revenues that Company successfully bears
the burden of proving arose from Company entering into this Agreement or
(iii) any matter described in Section 1.01 of the Company Disclosure
Schedule; PROVIDED, HOWEVER, that in no event shall a decrease in the trading
price of Company Common Stock or litigation relating thereto be considered a
Company Material Adverse Effect.

     "COMPANY STOCK PLANS" shall mean Company's 1995 Stock Option Plan, 1998
Stock Plan, Company Stock Purchase Plan and 1998 Director Option Plan.

     "COMPANY STOCK PURCHASE PLAN" shall mean Company's 1998 Employee Stock
Purchase Plan.


<PAGE>


     "COMPETING TRANSACTION" shall mean any of the following involving Company
(other than the Merger):

     (i)    any merger, consolidation, share exchange, business combination or
            other similar transaction (other than, for the purpose of Section
            9.05(b)(ii)(B) and 9.05(c), such a transaction in which Company
            acquires another Person and the shares of Company Common Stock
            issued to the equityholders of such other Person constitute less
            than 50% of the capital stock of the successor company in such
            transaction);

     (ii)   any sale, lease, exchange, mortgage, pledge, transfer or other
            disposition of 20% or more of the assets (excluding, for the purpose
            of Section 9.05(b)(ii)(B) and 9.05(c), cash or cash equivalents) of
            Company and its subsidiaries, taken as a whole, in a single
            transaction or series of related transactions;

     (iii)  any tender offer or exchange offer for 20% or more of the
            outstanding voting securities of Company or the filing of a
            registration statement under the Securities Act in connection
            therewith; or

     (iv)   any person having acquired beneficial ownership or the right to
            acquire beneficial ownership of, or any "group" (as such term is
            defined under Section 13(d) of the Exchange Act) having been formed
            that beneficially owns or has the right to acquire beneficial
            ownership of, 20% or more of the outstanding voting securities of
            Company;

     (v)    other than for the purpose of Section 9.05(b)(ii)(B) and 9.05(c),
            any solicitation in opposition to the approval of this Agreement by
            the stockholders of Company; or

     (vi)   other than for the purpose of Section 9.05(b)(ii)(B) and 9.05(c),
            any public announcement of a proposal, plan or intention to do any
            of the foregoing or any agreement to engage in any of the foregoing.

     "CONFIDENTIALITY AGREEMENT" shall mean the confidentiality agreement, dated
as of July 6, 1999 between Parent and Company.

     "$" shall mean United States Dollars.

     "ENVIRONMENTAL LAW" shall mean any Law and any enforceable judicial or
administrative interpretation thereof, including any judicial or administrative
order, consent decree or judgment, relating to pollution or protection of the
environment or natural resources, including, without limitation, those relating
to the use, handling, transportation, treatment, storage, disposal, release or
discharge of Hazardous Material, as in effect as of the date hereof.

     "ENVIRONMENTAL PERMIT" shall mean any permit, approval, identification
number, license or other authorization required under or issued pursuant to any
applicable Environmental


<PAGE>


Law.

     "ERISA" shall mean the Employee Retirement Income Security Act of 1974, as
amended.

     "EXCHANGE ACT" shall mean the Securities Exchange Act of 1934, as amended,
together with the rules and regulations promulgated thereunder.

     "EXPENSES" shall mean, with respect to any party hereto, all out-of-pocket
expenses (including, without limitation, all fees and expenses of counsel,
accountants, investment bankers, experts and consultants to a party hereto and
its affiliates) incurred by such party or on its behalf in connection with or
related to the authorization, preparation, negotiation, execution and
performance of its obligations pursuant to this Agreement and the consummation
of the Merger, the preparation, printing, filing and mailing of the Registration
Statement and the Proxy Statement, the solicitation of stockholder approvals,
the filing of HSR Act notice, if any, and all other matters related to the
transactions contemplated hereby and the closing of the Merger.

     "GOVERNMENTAL ENTITY" shall mean any United States Federal, state or local
or any foreign governmental, regulatory or administrative authority, agency or
commission or any court, tribunal or arbitral body.

     "GOVERNMENTAL ORDER" shall mean any order, writ, judgment, injunction,
decree, stipulation, determination or award entered by or with any Governmental
Entity.

     "HAZARDOUS MATERIAL" shall mean (i) any petroleum, petroleum products,
by-products or breakdown products, radioactive materials, asbestos-containing
materials or polychlorinated biphenyls or (ii) any chemical, material or
substance defined or regulated as toxic or hazardous or as a pollutant or
contaminant or waste under any applicable Environmental Law.

     "HSR ACT" shall mean Hart-Scott-Rodino Antitrust Improvements Act of 1976,
as amended, together with the rules and regulations promulgated thereunder.

     "IRS" shall mean the United States Internal Revenue Service.

     "LAW" shall mean any Federal, state, foreign or local statute, law,
ordinance, regulation, rule, code, order, judgment, decree, other requirement or
rule of law of the United States or any other jurisdiction, and any other
similar act or law.

     "PARENT DISCLOSURE SCHEDULE" shall mean the disclosure schedule delivered
by Parent to Company prior to the execution of this Agreement and forming a part
hereof.

     "PARENT MATERIAL ADVERSE EFFECT" shall mean any change in or effect on the


<PAGE>


business of Parent and the Parent Subsidiaries that, individually or in the
aggregate (taking into account all other such changes or effects), is, or is
reasonably likely to be, materially adverse to the business, liabilities,
financial condition or results of operations of Parent and the Parent
Subsidiaries, taken as a whole, except to the extent any such change or effect
results from or is attributable to (i) changes in general economic conditions or
changes affecting the industry generally in which Parent operates (provided that
such changes do not affect Parent in a materially disproportionate manner) or
(ii) any litigation or loss of current or prospective customers, employees or
revenues that Parent successfully bears the burden of proving arose from Parent
entering into this Agreement; PROVIDED, HOWEVER, that in no event shall a
decrease in the trading price of Parent Common Stock or litigation relating
thereto be considered a Parent Material Adverse Effect.

     "PARENT STOCK PLANS" shall mean Parent's 1997 Stock Incentive Plan and 1996
Stock Option Plan.

     "PERSON" shall mean an individual, corporation, partnership, limited
partnership, limited liability company, limited liability partnership,
syndicate, person (including, without limitation, a "person" as defined in
Section 13(d)(3) of the Exchange Act), trust, association, entity or government
or political subdivision, agency or instrumentality of a government.

     "SECURITIES ACT" shall mean the Securities Act of 1933, as amended,
together with the rules and regulations promulgated thereunder.

     "SUBSIDIARY" shall mean, with respect to any person, any corporation,
partnership, limited partnership, limited liability company, limited liability
partnership, joint venture or other legal entity of which such person (either
alone or through or together with any other subsidiary of such person) owns,
directly or indirectly, a majority of the stock or other equity interests, the
holders of which are generally entitled to vote for the election of the board of
directors or other governing body of such corporation or other legal entity.

     "TAX" shall mean (i) any and all taxes, fees, levies, duties, tariffs,
imposts and other charges of any kind (together with any and all interest,
penalties, additions to tax and additional amounts imposed with respect thereto)
imposed by any Governmental Entity or taxing authority, including, without
limitation, taxes or other charges on or with respect to income, franchises,
windfall or other profits, gross receipts, property, sales, use, capital stock,
payroll, employment, social security, workers' compensation, unemployment
compensation or net worth; taxes or other charges in the nature of excise,
withholding, ad valorem, stamp, transfer, value-added or gains taxes; license,
registration and documentation fees; and customers' duties, tariffs and similar
charges; (ii) any liability for the payment of any amounts of the type described
in (i) as a result of being a member of an affiliated, combined, consolidated or
unitary group for any Taxable period; and (iii) any liability for the payment of
amounts of the type described in (i) or (ii) as a result of being a transferee
of, or a successor in interest to, any person or as a result of an express or
implied obligation to indemnify any person.


<PAGE>


     "TAX RETURN" shall mean any return, statement or form (including, without
limitation, any estimated tax reports or return, withholding tax reports or
return and information report or return) required to be filed with respect to
any Taxes. ARTICLE II

ARTICLE II

                                   THE MERGER

SECTION 2.01      THE MERGER

     Upon the terms and subject to the conditions set forth in this Agreement,
and in accordance with the DGCL, at the Effective Time (as defined in Section
2.03), Merger Sub shall be merged with and into Company. As a result of the
Merger, the separate corporate existence of Merger Sub shall cease and Company
shall continue as the surviving corporation of the Merger as a wholly owned
subsidiary of Parent (the "SURVIVING CORPORATION").

SECTION 2.02      CLOSING

     Unless this Agreement shall have been terminated and the Merger herein
contemplated shall have been abandoned pursuant to Section 9.01 and subject to
the satisfaction or waiver of the conditions set forth in Article VIII, the
consummation of the Merger shall take place as promptly as practicable (and in
any event within three business days) after satisfaction or waiver of the
conditions set forth in Article VIII, at a closing (the "CLOSING") to be held at
the offices of Brobeck, Phleger & Harrison LLP, Spear Street Tower, One Market,
San Francisco, California 94105 unless another date, time or place is agreed to
by Parent and Company.

SECTION 2.03      EFFECTIVE TIME

     At and after the time of the Closing, the parties shall cause the Merger to
be consummated by filing a certificate of merger (the "CERTIFICATE OF MERGER")
with the Secretary of State of the State of Delaware in such form as required
by, and executed in accordance with the relevant provisions of, the DGCL (the
date and time of such filing, or such later date and time as may be set forth
therein, being the "EFFECTIVE TIME").

SECTION 2.04      EFFECT OF THE MERGER

     At the Effective Time, the effect of the Merger shall be as provided in the
applicable provisions of the DGCL. Without limiting the generality of the
foregoing, and subject thereto, at the Effective Time, except as otherwise
provided herein, all the property, rights, privileges, powers and franchises of
Company and Merger Sub shall vest in Company as the Surviving Corporation, and
all debts, liabilities and duties of Company and Merger Sub shall become the
debts, liabilities and duties of Company as the Surviving Corporation.


<PAGE>


SECTION 2.05      CERTIFICATE OF INCORPORATION; BYLAWS; DIRECTORS AND OFFICERS
                  OF SURVIVING CORPORATION

     Unless otherwise agreed by Parent and Company before the Effective Time, at
the Effective Time:

     (a)    the Certificate of Incorporation and the Bylaws of Merger Sub in
            effect immediately prior to the Effective Time shall be the
            Certificate of Incorporation and the Bylaws of the Surviving
            Corporation, until thereafter amended as provided by Law and such
            Certificate of Incorporation or Bylaws; PROVIDED, HOWEVER, that
            Article I of the Certificate of Incorporation of the Surviving
            Corporation shall be amended to read as follows: "The name of the
            corporation is NetGravity, Inc.";

     (b)    the officers of Merger Sub immediately prior to the Effective Time
            shall serve in their respective offices of the Surviving Corporation
            from and after the Effective Time, in each case until their
            successors are elected or appointed and qualified or until their
            resignation or removal; and

     (c)    the directors of Merger Sub immediately prior to the Effective Time
            shall serve as the directors of the Surviving Corporation from and
            after the Effective Time, in each case until their successors are
            elected or appointed and qualified or until their resignation or
            removal.

ARTICLE III

               CONVERSION OF SECURITIES; EXCHANGE OF CERTIFICATES

SECTION 3.01      CONVERSION OF SHARES

     At the Effective time, by virtue of the Merger, and without any action on
the part of Parent, Merger Sub, Company or the holders of any of the following
securities:

     (a)    each share of Common Stock, $.001 par value, of Company ("COMPANY
            COMMON STOCK") issued and outstanding immediately before the
            Effective Time (excluding those held in the treasury of Company and
            those owned by any wholly owned subsidiary of Company) and all
            rights in respect thereof, shall, forthwith cease to exist and be
            converted into and become exchangeable for .28 shares (the "EXCHANGE
            RATIO") of common stock, $.001 par value, of Parent ("PARENT COMMON
            STOCK");

     (b)    each share of Company Common Stock held in the treasury of Company
            or owned by any wholly owned subsidiary of Company immediately prior
            to the Effective Time shall be canceled and retired and no shares of
            stock or other securities of Parent, the Surviving Corporation or
            any other corporation shall be issuable, and no payment of other
            consideration shall be made, with respect thereto; and

<PAGE>

     (c)    each issued and outstanding share of capital stock of Merger Sub
            shall be converted into and become one fully paid and nonassessable
            share of common stock of the Surviving Corporation.

SECTION 3.02      EXCHANGE OF SHARES OTHER THAN TREASURY SHARES

     (a)    EXCHANGE AGENT. As of the Effective Time, Parent shall enter into an
            agreement with a bank or trust company to act as exchange agent for
            the Merger (the "EXCHANGE AGENT") as may be designated by Parent and
            shall be reasonably acceptable to Company.

     (b)    PARENT TO PROVIDE COMMON STOCK AND CASH. Promptly after the
            Effective Time, Parent shall make available to the Exchange Agent
            for the benefit of the holder of Company Common Stock: (i)
            Certificates of Parent Common Stock ("PARENT CERTIFICATES")
            representing the number of whole shares of Parent Common Stock
            issuable pursuant to Section 3.01(a) in exchange for shares of
            Company Common Stock outstanding immediately prior to the Effective
            Time; and (ii) sufficient funds to permit payment in lieu of
            fractional shares pursuant to Section 3.04.

     (c)    EXCHANGE PROCEDURES. The Exchange Agent shall mail to each holder of
            record of certificates of Company Common Stock ("COMPANY
            CERTIFICATES"), whose shares were converted into the right to
            receive shares of Parent Common Stock (and cash in lieu of
            fractional shares) pursuant to Section 3.04) promptly after the
            Effective Time (and in any event no later than three business days
            after the later to occur of the Effective Time and receipt by Parent
            of a complete list from Company of the names and addresses of its
            holders of record): (i) a letter of transmittal (which shall specify
            that delivery shall be effected, and risk of loss and title to the
            Company Certificates shall pass, only upon receipt of the Company
            Certificates by the Exchange Agent, and shall be in such form and
            have such other provisions as Parent may reasonably specify); and
            (ii) instructions for use in effecting the surrender of the Company
            Certificates in exchange for Parent Certificates (and cash in lieu
            of fractional shares). Upon surrender of a Company Certificate for
            cancellation to the Exchange Agent or to such other agent or agents
            as may be appointed by Parent, together with such letter of
            transmittal, duly completed and validly executed, and such other
            documents as may be reasonably required by the Exchange Agent, the
            holder of such Company Certificate shall be entitled to receive in
            exchange therefor a Parent Certificate representing the number of
            whole shares of Parent Common Stock that such holder has the right
            to receive pursuant to this Article III and payment of cash in lieu
            of fractional shares which such holder has the right to receive
            pursuant to Section 3.04, and the Company Certificate so surrendered
            shall forthwith be canceled. Until so surrendered, each outstanding
            Company Certificate that, prior to the Effective Time, represented
            shares of Company Common Stock will be deemed from and after the
            Effective Time, for all corporate purposes other than the payment of
            dividends and distributions, to evidence the ownership of the number
            of full shares of Parent Common Stock into which such shares of
            Company Common Stock shall have been so converted and the right to
            receive an amount in cash in lieu of the issuance of any fractional
            shares in accordance with Section 3.04. Notwithstanding any other
            provision of this Agreement, no interest will be paid or will accrue
            on any cash payable to holders of Company Certificates pursuant to
            the provisions of this Article III.


<PAGE>


     (d)    DISTRIBUTIONS WITH RESPECT TO UNEXCHANGED SHARES. No dividends or
            other distributions with respect to Parent Common Stock with a
            record date after the Effective Time will be paid to the holder of
            any unsurrendered Company Certificate with respect to the shares of
            Parent Common Stock represented thereby until the holder of record
            of such Company Certificate shall surrender such Company
            Certificate. Subject to the effect of applicable escheat or similar
            laws, following surrender of any such Company Certificate, there
            shall be paid to the record holder of the Parent Certificates issued
            in exchange therefor, without interest, at the time of such
            surrender, the amount of any such dividends or other distributions
            with a record date after the Effective Time theretofore payable (but
            for the provisions of this Section 3.02(d)) with respect to such
            shares of Parent Common Stock.

     (e)    TRANSFER OF OWNERSHIP. If any Parent Certificate is to be issued in
            a name other than that in which the Company Certificate surrendered
            in exchange therefor is registered, it will be a condition of the
            issuance thereof that the Company Certificate so surrendered will be
            properly endorsed and otherwise in proper form for transfer and that
            the person requesting such exchange will have paid to Parent or any
            agent designated by it any transfer or other taxes required by
            reason of the issuance of a Parent Certificate for shares of Parent
            Common Stock in any name other than that of the registered holder of
            the Company Certificate surrendered, or established to the
            satisfaction of Parent or any agent designated by it that such tax
            has been paid or is not payable.

     (f)    TERMINATION OF EXCHANGE AGENT FUNDING. Any portion of funds
            (including any interest earned thereon) or Parent Certificates held
            by the Exchange Agent which have not been delivered to holders of
            Company Certificates pursuant to this Article III within six months
            after the Effective Time shall promptly be paid or delivered, as
            appropriate, to Parent, and thereafter holders of Company
            Certificates who have not theretofore complied with the exchange
            procedures outlined in and contemplated by this Section 3.02 shall
            thereafter look only to Parent (subject to abandoned property,
            escheat and similar laws) only as general creditors thereof for
            their claim for shares of Parent Common Stock, any cash in lieu of
            fractional shares of Parent Common Stock and any dividends or
            distributions (with a record date after the Effective Time) with
            respect to Parent Common Stock to which they are entitled.

     (g)    NO LIABILITY. Notwithstanding anything to the contrary in this
            Section 3.02, none of the Exchange Agent, the Surviving Corporation
            or any party hereto shall be liable to any person in respect of any
            shares of Parent Common Stock or cash delivered to a public official
            pursuant to any applicable abandoned property, escheat or similar
            law.

     (h)    LOST, STOLEN OR DESTROYED COMPANY CERTIFICATES. In the event any
            Company Certificates shall have been lost, stolen or destroyed, the
            Exchange Agent shall issue in exchange for such lost, stolen or
            destroyed Company Certificates, upon the making of an affidavit of
            that fact by the holder thereof, a Parent Certificate representing
            such shares of Parent Common Stock (and cash in lieu of fractional
            shares) as may be required pursuant to this Article III; PROVIDED,
            HOWEVER, that Parent may, in its discretion and as a condition
            precedent to the issuance thereof, require the


<PAGE>


            owner of such lost, stolen or destroyed Company Certificates to
            indemnify Parent against any claim that may be made against Parent,
            the Surviving Corporation or the Exchange Agent with respect to the
            Company Certificates alleged to have been lost, stolen or destroyed.

SECTION 3.03      STOCK TRANSFER BOOKS

     At the Effective Time, the stock transfer books of Company shall each be
closed, and there shall be no further registration of transfers of shares of
Company Common Stock thereafter on the records of any such stock transfer books.
In the event of a transfer of ownership of shares of Company Common Stock that
is not registered in the stock transfer records of Company at the Effective
Time, a certificate or certificates representing the number of full shares of
Parent Common Stock into which such shares of Company Common Stock shall have
been converted shall be issued to the transferee together with a cash payment in
lieu of fractional shares, if any, in accordance with Section 3.04 hereof, and a
cash payment in the amount of dividends, if any, in accordance with Section
3.02(d) hereof, if the certificate or certificates representing such shares of
Company Common Stock is or are surrendered as provided in Section 3.02(c)
hereof, accompanied by all documents required to evidence and effect such
transfer and by evidence of payment of any applicable stock transfer tax.

SECTION 3.04      NO FRACTIONAL SHARE CERTIFICATES

     No scrip or fractional share Parent Certificate shall be issued upon the
surrender for exchange of Company Certificates, and an outstanding fractional
share interest shall not entitle the owner thereof to vote, to receive dividends
or to any rights of a stockholder of Parent or of Surviving Corporation with
respect to such fractional share interest. As promptly as practicable following
the Effective Time, Parent shall deposit with the Exchange Agent an amount in
cash sufficient for the Exchange Agent to pay each holder of Company Common
Stock an amount in cash equal to the product obtained by multiplying (i) the
fractional share interest to which such holder would otherwise be entitled
(after taking into account all shares of Company Common Stock held at the
Effective Time by such holder) by (ii) the closing price for a share of Parent
Common Stock on the Nasdaq National Market (the "NNM") on the first business day
immediately following the Effective Time. As soon as practicable after the
determination of the amount of cash, if any, to be paid to holders of Company
Common Stock with respect to any fractional share interests, the Exchange Agent
shall make available such amounts, net of any required withholding Taxes, to
such holders of Company Common Stock, subject to and in accordance with the
terms of Section 3.02 hereof.

SECTION 3.05      OPTIONS TO PURCHASE COMPANY COMMON STOCK

     At the Effective Time, each option or warrant granted by Company to
purchase shares of Company Common Stock ("COMPANY STOCK OPTIONS"), which is
outstanding and unexercised immediately prior to the Effective Time, and the
Company Stock Plans shall be assumed by Parent, and the Company Stock Options
shall be converted into an option or warrant,


<PAGE>


as the case may be, to purchase shares of Parent Common Stock in such number and
at such exercise price as provided below and otherwise having the same terms and
conditions as in effect immediately prior to the Effective Time (except to the
extent that such terms, conditions and restrictions may be altered in accordance
with their terms as a result of the Merger contemplated hereby and except that
all references in each such Company Stock Option to Company shall be deemed to
refer to Parent):

     (a)    the number of shares of Parent Common Stock to be subject to the new
            option or warrant, as the case may be, shall be equal to the product
            of (x) the number of shares of Company Common Stock subject to the
            original Company Stock Option immediately prior to the Effective
            Time and (y) the Exchange Ratio;

     (b)    the exercise price per share of Parent Common Stock under the new
            option or warrant shall be equal to (x) the exercise price per share
            of Company Common Stock in effect under the original Company Stock
            Option immediately prior to the Effective Time divided by (y) the
            Exchange Ratio; and

     (c)    in effecting such assumption and conversion, the aggregate number of
            shares of Parent Common Stock to be subject to each assumed Company
            Stock Option will be rounded down, if necessary, to the next whole
            share and the aggregate exercise price shall be rounded up, if
            necessary, to the next whole cent while preserving the aggregate
            intrinsic value.

     The adjustments provided herein with respect to any options that are
"incentive stock options" (as defined in Section 422 of the Code) shall be
effected in a manner consistent with the requirements of Section 424(a) of the
Code so as to retain their character as incentive stock options. The assumption
of the outstanding Company Stock Options in the Merger and their conversion into
options for Parent Common Stock will not result in any accelerated vesting of
those options or the shares purchasable thereunder other than as contemplated in
currently existing agreements to which Company is a party, copies of which
agreements have been provided to Parent, and the vesting schedule in effect for
each Company Stock Option immediately prior to the Effective Time shall remain
in full force after the assumption thereof by Parent.

SECTION 3.06      UNVESTED STOCK

     At the Effective Time, any unvested shares of Company Common Stock awarded
to employees, directors or consultants pursuant to any of the Company's plans or
arrangements and outstanding immediately prior to the Effective Time shall be
converted into unvested shares of Parent Common Stock in accordance with the
Exchange Ratio and shall remain subject to the same terms, restrictions and
vesting schedule as in effect immediately prior to the Effective Time, except to
the extent by their terms such unvested shares of Company Common Stock vest at
the Effective Time and copies of the relevant agreements governing such vesting
have been provided to Parent. All outstanding rights which Company may hold
immediately prior to the


<PAGE>


Effective Time to repurchase unvested shares of Company Common Stock shall be
assigned to the Parent in the Merger and shall thereafter be exercisable by
Parent upon the same terms and conditions in effect immediately prior to the
Effective Time, except that the shares purchasable pursuant to such rights and
the purchase price payable per share shall be adjusted to reflect the Exchange
Ratio.

SECTION 3.07      EMPLOYEE STOCK PURCHASE PLAN

     At the Effective Time, the Company Stock Purchase Plan and each outstanding
purchase right under the Company Stock Purchase Plan shall be assumed by Parent.
Within five business days of the date hereof, Company shall deliver a schedule
that sets forth a true and complete list as of the date hereof of all holders of
outstanding purchase rights under the Company Stock Purchase Plan, including the
payroll deduction amount elected by each holder and the price per share of
Company Common Stock at the start of the current purchase periods. On the
Closing Date, Company shall deliver to Parent an updated version of such
schedule, current as of such date. Each such purchase right so assumed by Parent
under this Agreement shall continue to have, and be subject to, the terms and
conditions set forth in the Company Stock Purchase Plan and the documents
governing the outstanding purchase rights under the Company Stock Purchase Plan
immediately prior to the Effective Time, except that the purchase price of
shares of Parent Common Stock and the number of shares of Parent Common Stock to
be issued upon the exercise of each such purchase right shall be adjusted in
accordance with the Exchange Ratio (with the number of shares rounded down to
the nearest whole share and the purchase price rounded up to the nearest whole
cent). The assumed outstanding purchase rights under the Company Stock Purchase
Plan shall be exercised at such times following the Effective Time as set forth
in the Company Stock Purchase Plan, and each participant shall, accordingly, be
issued shares of Parent Common Stock at such times. The Company Stock Purchase
Plan, and all outstanding purchase rights thereunder, shall terminate with the
exercise of the last assumed purchase right, and no additional purchase rights
shall be granted under the Company Stock Purchase Plan following the Effective
Time.

SECTION 3.08       CERTAIN ADJUSTMENTS

     If between the date of this Agreement and the Effective Time, the
outstanding shares of Parent Common Stock or Company Common Stock shall be
changed into a different number of shares by reason of any reclassification,
recapitalization, split-up, combination or exchange of shares, or any dividend
payable in stock or other securities shall be declared thereon with a record
date within such period, or the number of shares of Company Common Stock on a
fully diluted basis is in excess of that specified in Section 4.03 and disclosed
in Section 4.03 of the Company Disclosure Schedule (regardless of whether such
excess is a result of an additional issuance of capital stock or a correction to
such Sections), then the Exchange Ratio established pursuant to the provisions
of Section 3.01 shall be adjusted accordingly to provide to Parent the same
economic effect as contemplated by this Agreement prior to such
reclassification, recapitalization, split-up, combination, exchange, dividend or
increase.


<PAGE>


ARTICLE IV

                    REPRESENTATIONS AND WARRANTIES OF COMPANY

     Company hereby represents and warrants to Parent, subject to the exceptions
specifically disclosed in writing in the Company Disclosure Schedule, all such
exceptions to be referenced to a specific representation set forth in this
Article IV or to otherwise be clearly applicable to representations hereof not
specifically referenced, that:

SECTION 4.01      ORGANIZATION AND QUALIFICATION; SUBSIDIARIES

     (a)    Company and each directly and indirectly owned subsidiary of Company
            (the "COMPANY SUBSIDIARIES") has been duly organized and is validly
            existing and in good standing (to the extent applicable) under the
            laws of the jurisdiction of its incorporation or organization, as
            the case may be, and has the requisite corporate power and authority
            to own, lease and operate its properties and to carry on its
            business as it is now being conducted. Company and each Company
            Subsidiary is duly qualified or licensed to do business, and is in
            good standing (to the extent applicable), in each jurisdiction where
            the character of the properties owned, leased or operated by it or
            the nature of its business makes such qualification or licensing
            necessary, except for such failures to be so qualified or licensed
            and in good standing that could not reasonably be expected to have,
            individually or in the aggregate, a Company Material Adverse Effect.

     (b)    Section 4.01 of the Company Disclosure Schedule sets forth, as of
            the date of this Agreement, a true and complete list of each Company
            Subsidiary, together with (i) the jurisdiction of incorporation or
            organization of each Company Subsidiary and the percentage of each
            Company Subsidiary's outstanding capital stock or other equity
            interests owned by Company or another Company Subsidiary and (ii) an
            indication of whether each Company Subsidiary is a "Significant
            Subsidiary" as defined in Regulation S-X under the Exchange Act.
            Except as set forth in Section 4.01 of the Company Disclosure
            Schedule, neither Company nor any Company Subsidiary owns an equity
            interest in any partnership or joint venture arrangement or other
            business entity.

SECTION 4.02      CERTIFICATE OF INCORPORATION AND BYLAWS

     The copies of Company's certificate of incorporation and bylaws previously
provided to Parent by Company are true, complete and correct copies thereof.
Such certificate of incorporation and bylaws are in full force and effect.
Company is not in violation of any of the provisions of its certificate of
incorporation or bylaws.

SECTION 4.03      CAPITALIZATION

     The authorized capital stock of Company consists of 50,000,000 shares of
Company Common Stock and 5,000,000 shares of preferred stock ("COMPANY PREFERRED


<PAGE>


STOCK"). As of the date hereof, (i) 17,822,448 shares of Company Common Stock
are issued and outstanding, all of which are validly issued, fully paid and
nonassessable, (ii) no shares of Company Common Stock are held in the treasury
of Company, (iii) no shares of Company Common Stock are held by Company
Subsidiaries, (iv) 4,586,903 shares of Company Common Stock are reserved for
future issuance pursuant to Company Stock Options, of which 3,489,904 shares of
Company Common Stock are reserved for future issuance pursuant to unvested,
outstanding and vested, outstanding, unexercised Company Stock Options
(excluding the Company Stock Purchase Plan), (v) 665,224 shares of Company
Common Stock are reserved for issuance under the Company Stock Purchase Plan and
(vi) no shares of Company Preferred Stock are outstanding. The name of each
holder of a company Stock Option as of the date hereof, the grant date of each
Company Stock Option, and the number of shares of Company Common Stock for which
each Company Stock Option is exercisable and the exercise price of each Company
Stock Option are set forth in Section 4.03 of the Company Disclosure Schedule.
Except for shares of Company Common Stock issuable pursuant to Company Stock
Plans, there are no options, warrants or other rights, agreements, arrangements
or commitments of any character to which Company is a party or by which Company
is bound relating to the issued or unissued capital stock of Company or any
Company Subsidiary or obligating Company or any Company Subsidiary to issue or
sell any shares of capital stock of, or other equity interests in, Company or
any Company Subsidiary. All shares of Company Common Stock subject to issuance
as aforesaid, upon issuance prior to the Effective Time on the terms and
conditions specified in the instruments pursuant to which they are issuable,
will be duly authorized, validly issued, fully paid and nonassessable. There are
no outstanding contractual obligations of Company or any Company Subsidiary to
repurchase, redeem or otherwise acquire any shares of Company Common Stock or
any capital stock of any Company Subsidiary. Each outstanding share of capital
stock of each Company Subsidiary is duly authorized, validly issued, fully paid
and nonassessable and each such share owned by Company or another Company
Subsidiary is free and clear of all security interests, liens, claims, pledges,
options, rights of first refusal, agreements, limitations on Company's or such
other Company Subsidiary's voting rights, charges and other encumbrances of any
nature whatsoever. There are no material outstanding contractual obligations of
Company or any Company Subsidiary to provide funds to, or make any material
investment (in the form of a loan, capital contribution or otherwise) in, any
Company Subsidiary or any other person.

SECTION 4.04      AUTHORITY RELATIVE TO THIS AGREEMENT

     Company has all necessary corporate power and authority to execute and
deliver this Agreement, to perform its obligations hereunder and to consummate
the transactions contemplated hereby. The execution and delivery of this
Agreement by Company and the consummation by Company of the transactions
contemplated hereby have been duly and validly authorized by all necessary
corporate action, and no other corporate proceedings on the part of Company are
necessary to authorize this Agreement or to consummate the transactions
contemplated hereby (other than, with respect to the Merger, the approval of
this Agreement by


<PAGE>


the holders of a majority of the outstanding shares of Company Common Stock
entitled to vote with respect thereto at the Company Stockholders' Meeting (as
defined in Section 7.01), and the filing and recordation of the Certificate of
Merger as required by the DGCL). This Agreement has been duly executed and
delivered by Company and, assuming the due authorization, execution and delivery
by the other parties hereto, constitutes legal, valid and binding obligations of
Company, enforceable against Company in accordance with its terms, subject to
the effect of any applicable bankruptcy, moratorium, insolvency, reorganization
or other similar law affecting the enforceability of creditors' rights generally
and to the effect of general principles of equity which may limit the
availability of remedies (whether in a proceeding at law or in equity).

SECTION 4.05      NO CONFLICT; REQUIRED FILINGS AND CONSENTS

     (a)    The execution and delivery of this Agreement by Company do not, and
            the performance by Company of its obligations hereunder and the
            consummation of the Merger will not, (i) conflict with or violate
            any provision of the certificate of incorporation or bylaws of
            Company or any equivalent organizational documents of any Company
            Subsidiary, (ii) assuming that all filings and notifications
            described in Section 4.05(b) have been made, conflict with or
            violate any Law applicable to Company or any Company Subsidiary or
            by which any property or asset of Company or any Company Subsidiary
            is bound or affected or (iii) result in any material breach of or
            constitute a material default (or an event which with the giving of
            notice or lapse of time or both could reasonably be expected to
            become a default) under, or give to others any right of termination,
            amendment, acceleration or cancellation of, or result in the
            creation of a lien or other encumbrance on any material property or
            asset of Company or any Company Subsidiary pursuant to, any note,
            bond, mortgage, indenture, contract, agreement, lease, license,
            permit, franchise or other instrument or obligation.

     (b)    The execution and delivery of this Agreement by Company do not, and
            the performance by Company of its obligations hereunder and the
            consummation of the Merger will not, require any consent, approval,
            authorization or permit of, or filing by Company with or
            notification by Company to, any Governmental Entity, except pursuant
            to applicable requirements of the Exchange Act, the Securities Act,
            Blue Sky Laws, the rules and regulations of the NNM, state takeover
            laws, the premerger notification requirements of the HSR Act, and
            the filing and recordation of the Certificate of Merger as required
            by the DGCL.

SECTION 4.06      PERMITS; COMPLIANCE WITH LAWS

     Company and the Company Subsidiaries are in possession of all material
franchises, grants, authorizations, licenses, establishment registrations,
product listings, permits, easements, variances, exceptions, consents,
certificates, identification and registration numbers, approvals and orders of
any Governmental Entity necessary for Company or any Company Subsidiary to carry
on its business as it is now being conducted (collectively, the "COMPANY
PERMITS"), and, as of the date of this Agreement, none of the material Company
Permits has been suspended or cancelled nor is any such suspension or
cancellation pending or, to the knowledge

<PAGE>


of Company, threatened. Except with respect to Environmental Permits that are
addressed in Section 4.13 hereof, neither Company nor any Company Subsidiary
is in conflict in any material respect with, or in material default or
violation of, (i) any Law applicable to Company or any Company Subsidiary or
by which any property or asset of Company or any Company Subsidiary is bound
or affected or (ii) any Company Permits. Section 4.06 of the Company
Disclosure Schedule sets forth, as of the date of this Agreement, all
actions, proceedings, investigations or surveys pending or, to the knowledge
of Company, threatened against Company or any Company Subsidiary that could
reasonably be expected to result in the suspension or cancellation of any
other Company Permit. Since March 1, 1996, neither Company nor any Company
Subsidiary has received from any Governmental Entity any written notification
with respect to possible conflicts, defaults or violations of Laws.

SECTION 4.07      SEC FILINGS; FINANCIAL STATEMENTS

     (a)    Company has timely filed all forms, reports, statements and
            documents required to be filed by it (A) with the SEC since June 11,
            1998 (collectively, together with any such forms, reports,
            statements and documents Company may file subsequent to the date
            hereof until the Closing, the "COMPANY REPORTS") and (B) with any
            other Governmental Entities. Each Company Report (i) was prepared in
            all material respects in accordance with the requirements of the
            Securities Act, the Exchange Act or the rules and regulations of the
            NNM, as the case may be, and (ii) did not at the time it was filed
            (or, in the case of registration statements filed under the
            Securities Act, at the time of effectiveness) contain any untrue
            statement of a material fact or omit to state a material fact
            required to be stated therein or necessary in order to make the
            statements made therein, in the light of the circumstances under
            which they were made, not misleading. Each material form, report,
            statement and document referred to in clause (B) of this paragraph
            was prepared in all material respects in accordance with the
            requirements of applicable Law. No Company Subsidiary is subject to
            the periodic reporting requirements of the Exchange Act or required
            to file any form, report or other document with the SEC, the NNM,
            any other stock exchange or any other comparable Governmental
            Entity.

     (b)    Each of the consolidated financial statements (including, in each
            case, any notes thereto) contained in the Company Reports was
            prepared in accordance with U.S. GAAP (except as may be permitted by
            Form 10-Q under the Exchange Act) applied on a consistent basis
            throughout the periods indicated (except as may be indicated in the
            notes thereto) and each presented fairly, in all material respects,
            the consolidated financial position of Company and the consolidated
            Company Subsidiaries as at the respective dates thereof and for the
            respective periods indicated therein, except as otherwise noted
            therein (subject, in the case of unaudited statements, to normal and
            recurring immaterial year-end adjustments).

     (c)    Except as and to the extent set forth or reserved against on the
            consolidated balance sheet of Company and the Company Subsidiaries
            as reported in the Company Reports, including the notes thereto,
            none of Company or any Company Subsidiary has any liabilities or
            obligations of any nature (whether accrued, absolute, contingent or
            otherwise) that would be required to be


<PAGE>


            reflected on a balance sheet or in notes thereto prepared in
            accordance with U.S. GAAP, except for immaterial liabilities or
            obligations incurred in the ordinary course of business consistent
            with past practice since December 31, 1998.

SECTION 4.08      ABSENCE OF CERTAIN CHANGES OR EVENTS

     Since December 31, 1998, Company and the Company Subsidiaries have
conducted their businesses in all material respects only in the ordinary course
consistent with past practice and, since such date, there has not been (i) any
Company Material Adverse Effect, (ii) any event that could reasonably be
expected to prevent or materially delay the performance of Company's obligations
pursuant to this Agreement and the consummation of the Merger by Company, (iii)
any material change by Company in its accounting methods, principles or
practices, (iv) any declaration, setting aside or payment of any dividend or
distribution in respect of the shares of Company Common Stock or any redemption,
purchase or other acquisition of any of Company's securities, (v) except for
changes in the ordinary course of business consistent with past practice that
only affect non-officer employees of the Company, any increase in the
compensation or benefits or establishment of any bonus, insurance, severance,
deferred compensation, pension, retirement, profit sharing, stock option
(including, without limitation, the granting of stock options, stock
appreciation rights, performance awards or restricted stock awards), stock
purchase or other employee benefit plan, or any other increase in the
compensation payable or to become payable to any employees, officers,
consultants or directors of Company or any Company Subsidiary, (vi) any issuance
or sale of any stock, notes, bonds or other securities other than pursuant to
offerings registered under the Securities Act or pursuant to the exercise of
outstanding securities, or entering into any agreement with respect thereto,
(vii) any amendment to the Company's certificate of incorporation or bylaws,
(viii) other than in the ordinary course of business consistent with past
practice, any (x) purchase, sale, assignment or transfer of any material assets,
(y) mortgage, pledge or existence of any lien, encumbrance or charge on any
material assets or properties, tangible or intangible, except for liens for
Taxes not yet delinquent and such other liens, encumbrances or charges which do
not, individually or in the aggregate, have a Company Material Adverse Effect,
or (z) waiver of any rights of material value or cancellation or any material
debts or claims, (ix) any incurrence of any material liability (absolute or
contingent), except for current liabilities and obligations incurred in the
ordinary course of business consistent with past practice, (x) any incurrence of
any damage, destruction or similar loss, whether or not covered by insurance,
materially affecting the business or properties of Company or any Company
Subsidiary, or (xi) any entering into any transaction of a material nature other
than in the ordinary course of business, consistent with past practice.

SECTION 4.09      EMPLOYEE BENEFIT PLANS; LABOR MATTERS

     (a)    The Company Disclosure Schedule lists each employee benefit fund,
            plan, program, arrangement and contract (including, without
            limitation, any "pension" plan, fund or program, as defined in
            Section 3(2) of ERISA, and any "employee benefit plan," as defined
            in Section 3(3) of ERISA and any plan, program, arrangement or
            contract providing for severance; medical, dental or


<PAGE>


            vision benefits; life insurance or death benefits; disability
            benefits, sick pay or other wage replacement; vacation, holiday or
            sabbatical; pension or profit-sharing benefits; stock options or
            other equity compensation; bonus or incentive pay or other material
            fringe benefits), whether written or not ("BENEFIT PLANS"),
            maintained, sponsored or contributed to or required to be
            contributed to by Company or any Company Subsidiary (the "COMPANY
            BENEFIT PLANS"). With respect to each Company Benefit Plan, Company
            has delivered or made available to Parent a true, complete and
            correct copy of (i) such Company Benefit Plan (of, if not written, a
            written summary of its material terms) and the most recent summary
            plan description, if any, related to such Company Benefit Plan, (ii)
            each trust agreement or other funding arrangement, if any, relating
            to such Company Benefit Plan, (iii) the most recent annual report
            (Form 5500), if any, filed with the IRS with respect to such Company
            Benefit Plan (and, if the most recent annual report is a Form 5500R,
            the most recent Form 5500C filed with respect to such Company
            Benefit Plan), (iv) the most recent actuarial report or financial
            statement, if any, relating to such Company Benefit Plan and (v) the
            most recent determination, notification, advisory or opinion letter,
            issued by the IRS with respect to such Company Benefit Plan and any
            pending request for such a determination letter. Neither Company nor
            any Company Subsidiary nor, to the knowledge of Company, any other
            person or entity, has any express or implied commitment, whether
            legally enforceable or not, to modify, change or terminate any
            Company Benefit Plan, other than with respect to a modification,
            change or termination required by ERISA or the Code.

     (b)    Each Company Benefit Plan has been administered in all material
            respects in accordance with its terms and all applicable laws,
            including ERISA and the Code, and all material contributions
            required to be made under the terms of any of the Company Benefit
            Plans as of the date of this Agreement have been timely made or, if
            not yet due, have been properly reflected on the most recent
            consolidated balance sheet filed or incorporated by reference in the
            Company Reports prior to the date of this Agreement. With respect to
            the Company Benefit Plans, no event has occurred and, to the
            knowledge of Company, there exists no condition or set of
            circumstances in connection with which Company or any Company
            Subsidiary could be subject to any material liability (other than
            for routine benefit liabilities) under the terms of, or with respect
            to, such Company Benefit Plans, ERISA, the Code or any other
            applicable Law.

     (c)    Company on behalf of itself and each Company ERISA Affiliate (as
            defined below) hereby represents that: (i) each Company Benefit Plan
            which is intended to qualify under Section 401(a), Section 401(k),
            Section 401(m) or Section 4975(e)(6) of the Code has received a
            favorable determination, notification, advisory or opinion letter
            from the IRS as to its qualified status, and each trust established
            in connection with any Company which is intended to be exempt from
            federal income taxation under Section 501(a) of the Code has
            received a determination letter from the IRS that it is so exempt,
            and to Company's knowledge no fact or event has occurred that is
            reasonably likely to adversely affect the qualified status of any
            such Company Benefit Plan or the exempt status of any such trust;
            (ii) to Company's knowledge there has been no prohibited transaction
            (within the meaning of Section 406 of ERISA or Section 4975 of the
            Code and other than a transaction that is exempt under a statutory
            or administrative


<PAGE>


            exemption) with respect to any Company Plan that could result in
            liability to the Company or a Company Subsidiary and (iii) each
            Company Benefit Plan can be amended, terminated or otherwise
            discontinued after the Effective Time in accordance with its terms,
            without liability (other than (A) liability for ordinary
            administrative expenses typically incurred in a termination event or
            (B) if the Company Benefit Plan is pension benefit plan subject to
            Part 2 of Title I of ERISA, liability for the accrued benefits as of
            the date of such termination (if and to the extent required by
            ERISA) to the extent that either there are sufficient assets set
            aside in a trust or insurance contract to satisfy such liability or
            such liability is reflected on the most recent consolidated balance
            sheet filed or incorporated by reference in the Company Reports
            prior to the date of this Agreement. No suit, administrative
            proceeding, action or other litigation has been brought, or to the
            knowledge of Company is threatened, against or with respect to any
            such Company Benefit Plan, including any audit or inquiry by the IRS
            or United States Department of Labor (other than routine benefits
            claims).

     (d)    No Company Benefit Plan is a multiemployer pension plan (as defined
            in Section 3(37) of ERISA) or other pension plan subject to Title IV
            of Part 3 of Title I of ERISA or Section 412 of the Code and neither
            the Company, any Company Subsidiary nor any other trade or business
            (whether or not incorporated) that is under "common control" with
            Company or a Company Subsidiary (within the meaning of ERISA Section
            4001) or with respect to which Company or any Company Subsidiary
            could otherwise incur liability under Title IV of ERISA (a "COMPANY
            ERISA AFFILIATE") has sponsored or contributed to or been required
            to contribute to a multiemployer pension plan or other pension plan
            subject to Title IV of ERISA. No material liability under Title IV
            of ERISA has been incurred by Company, any Company Subsidiary or any
            Company ERISA Affiliate that has not been satisfied in full, and no
            condition exists that presents a material risk to Company or any
            Company Subsidiary of incurring or being subject (whether primarily,
            jointly or secondarily) to a material liability thereunder. None of
            the assets of Company or any Company Subsidiary is, or may
            reasonably be expected to become, the subject of any lien arising
            under ERISA or Section 412(n) of the Code.

     (e)    Company has made available to Parent copies of (i) all employment
            agreements with officers and all consulting agreements of Company
            and each Company Subsidiary providing for annual compensation in
            excess of $100,000, (ii) all severance plans, agreements, programs
            and policies of Company and each Company Subsidiary with or relating
            to their respective employees, directors or consultants, and (iii)
            all plans, programs, agreements and other arrangements of Company
            and each Company Subsidiary with or relating to their respective
            employees, directors or consultants which contain "change of
            control" provisions. No payment or benefit which may be required to
            be made by Company or any Company Subsidiary or which otherwise may
            be required to be made under the terms of any Company Benefit Plan
            or other arrangement will constitute a parachute payment under Code
            Section 280(G)(1), and the consummation of the transactions
            contemplated by this Agreement will not, alone or in conjunction
            with any other possible event (including termination of employment),
            (i) entitle any current or former employee or other service provider
            of Company or any Company Subsidiary to severance benefits or any


<PAGE>


            other payment, compensation or benefit (including forgiveness of
            indebtedness), except as expressly provided by this Agreement, or
            (ii) accelerate the time of payment or vesting, or increase the
            amount of compensation or benefit due any such employee or service
            provider.

     (f)    Neither Company nor any Company Subsidiary is a party to, or has any
            obligations under or with respect to, any collective bargaining or
            other labor union contract applicable to persons employed by Company
            or any Company Subsidiary and no collective bargaining agreement is
            being negotiated by Company or any Company Subsidiary or any person
            or entity that may obligate the Company or any Company Subsidiary
            thereunder. As of the date of this Agreement, there is no labor
            dispute, strike or work stoppage against Company or any Company
            Subsidiary pending or, to the knowledge of Company, threatened which
            may materially interfere with the respective business activities of
            Company or any Company Subsidiary. As of the date of this Agreement,
            to the knowledge of Company, none of Company, any Company
            Subsidiary, or any of their respective representatives or employees
            has committed any unfair labor practice in connection with the
            operation of the respective businesses of Company or any Company
            Subsidiary, and there is no charge or complaint against Company or
            any Company Subsidiary by the National Labor Relations Board or any
            comparable Governmental Entity pending or threatened in writing.

     (g)    Except as required by Law, no Company Benefit Plan provides any of
            the following retiree or post-employment benefits to any person:
            medical, disability or life insurance benefits. To Company's
            knowledge, Company and the Company ERISA Affiliates are in
            compliance in all material respects with (i) the requirements of the
            applicable health care continuation and notice provisions of the
            Consolidated Omnibus Budget Reconciliation Act of 1985, as amended
            ("COBRA") and the regulations (including proposed regulations)
            thereunder and (ii) the applicable requirements of the Health
            Insurance Portability and Accountability Act of 1996, as amended,
            and the regulations (including the proposed regulations) thereunder.

SECTION 4.10      POOLING; CERTAIN TAX MATTERS

     Neither Company nor, to the knowledge of Company, any of its affiliates has
taken or agreed to take any action (other than actions contemplated by this
Agreement) that could be expected to prevent (a) the Merger from being treated
for accounting purposes as a "pooling of interests" in accordance with U.S. GAAP
and the accounting standards of the SEC or (b) the Merger from constituting a
"reorganization" under Section 368 of the Code. Company is not aware of any
agreement or plan to which Company or any of its affiliates is a party or other
circumstances relating to Company or any of its affiliates that could reasonably
be expected to prevent the Merger from being so treated as a "pooling of
interests" or from so qualifying as a reorganization under Section 368 of the
Code.

SECTION 4.11      CONTRACTS

     Section 4.11 of the Company Disclosure Schedule sets forth a list of each
contract or agreement that is material to the business, assets, liabilities,
financial condition or results of


<PAGE>


operations of Company and Company Subsidiaries, taken as a whole (each, a
"MATERIAL CONTRACT"). Neither Company nor any Company Subsidiary is in material
violation of or in material default under (nor does there exist any condition
which with the passage of time or the giving of notice could reasonably be
expected to cause such a material violation of or material default under) any
Material Contract. Each Material Contract is in full force and effect and is a
legal, valid and binding obligation of Company or a Company Subsidiary and, to
the knowledge of Company, each of the other parties thereto, enforceable in
accordance with its terms.

SECTION 4.12      LITIGATION

     There is no suit, claim, action, proceeding or investigation pending or, to
the knowledge of Company, threatened against Company or any Company Subsidiary
that could reasonably be expected to have, individually or in the aggregate, a
Company Material Adverse Effect or materially interfere with Company's ability
to consummate the transactions contemplated hereby, and, to the knowledge of
Company, there are no existing facts or circumstances that could reasonably be
expected to result in such a suit, claim, action, proceeding or investigation.
Company is not aware of any facts or circumstances which could reasonably be
expected to result in the denial of insurance coverage under policies issued to
Company and Company Subsidiaries in respect of such suits, claims, actions,
proceedings and investigations, except in any case as could not reasonably be
expected to have, individually or in the aggregate, a Company Material Adverse
Effect. Neither Company nor any Company Subsidiary is subject to any outstanding
order, writ, injunction or decree which could reasonably be expected to have,
individually or in the aggregate, a Company Material Adverse Effect or
materially interfere with Company's ability to consummate the transactions
contemplated hereby.

SECTION 4.13      ENVIRONMENTAL MATTERS

     Except as could not reasonably be expected to have, individually or in the
aggregate, a Company Material Adverse Effect, (i) Company and the Company
Subsidiaries are in compliance with all applicable Environmental Laws and all
Environmental Permits; (ii) all past noncompliance of Company or any Company
Subsidiary with Environmental Laws or Environmental Permits has been resolved
without any pending, ongoing or future obligation, cost or liability; and (iii)
neither Company nor any Company Subsidiary has released a Hazardous Material at,
or transported a Hazardous Material to or from, any real property currently or
formerly owned, leased or occupied by Company or any Company Subsidiary, in
violation of any Environmental Law.

SECTION 4.14      INTELLECTUAL PROPERTY

     (a)    All patents, trademarks, trade names, service marks, trade dress,
            Internet domain names, copyrights and any renewal rights therefor,
            technology, supplier lists, trade secrets, know-how, computer
            software programs or applications in both source and object code
            form, technical


<PAGE>


            documentation of such software programs ("TECHNICAL DOCUMENTATION"),
            databases, data, registrations and applications for any of the
            foregoing and all other tangible or intangible proprietary
            information or materials that are or have been used (including
            without limitation in the development of) Company's business and/or
            in any product, technology or process (i) currently being or
            formerly manufactured, published or marketed by Company or (ii)
            previously or currently under development for possible future
            manufacturing, publication, marketing or other use by Company are
            hereinafter referred to as the "COMPANY INTELLECTUAL PROPERTY."

     (b)    Section 4.14 of the Company Disclosure Schedule contains a true and
            complete list of Company's patents, patent applications, trademarks,
            trademark applications, trade names, service marks, service mark
            applications, Internet domain names, Internet domain name
            applications and other filings and formal actions made or taken
            pursuant to Federal, state, local and foreign laws by Company to
            protect its interests in the Company Intellectual Property.

     (c)    The Company Intellectual Property consists solely of items and
            rights which are: (i) owned by Company; (ii) in the public domain;
            or (iii) rightfully used by Company pursuant to a valid license (the
            "COMPANY LICENSED INTELLECTUAL PROPERTY"), the parties and date of
            each such license agreement (each, a "LICENSE AGREEMENT") being set
            forth on Section 4.14(c) of the Company Disclosure Schedule. Company
            has all rights in Company Intellectual Property necessary to carry
            out Company's current activities (and had all rights necessary to
            carry out its former activities at the time such activities were
            being conducted), including without limitation, to the extent
            required to carry out such activities, rights to make, use,
            reproduce, modify, adopt, create derivative works based on,
            translate, distribute (directly and indirectly), transmit, display
            and perform publicly, license, rent and lease and, other than with
            respect to the Company Licensed Intellectual Property, assign and
            sell, the Company Intellectual Property.

     (d)    The reproduction, manufacturing, distribution, licensing,
            sublicensing, sale or any other exercise of rights in any Company
            Intellectual Property, product, service, work, technology or process
            as now used or offered or proposed for use, licensing or sale by
            Company does not infringe on any copyright, trade secret, trademark,
            service mark, trade name, trade dress, firm name, Internet domain
            name, logo, trade dress, mask work or other proprietary or personal
            right of any person or, to the knowledge of Company, the patent of
            any person. Notwithstanding the foregoing, with respect to Company
            Licensed Intellectual Property that (i) has a license fee of less
            than $1,000 per copy used in Company's products and (ii) (x) is used
            on a stand alone basis or (y) causes Company Intellectual Property
            to be subject to a claim (for reasons other than that the
            combination of such Company Licensed Intellectual Property with
            other Company Intellectual Property is infringing), Company relies
            on the representations and warranties of non-infringement contained
            in the agreements pursuant to which Company is authorized to use
            such Company Licensed Intellectual Property. No claims (i)
            challenging the validity, effectiveness or, other than with respect
            to the Company Licensed Intellectual Property, ownership by Company
            of any of the Company Intellectual Property, or (ii) to the effect
            that the use, distribution, licensing, sublicensing, sale or any
            other exercise of rights in any product, service, work,


<PAGE>


            technology or process as now used or offered or proposed for use,
            licensing, sublicensing or sale by Company 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 Company, are threatened by any person, nor are there, to
            Company's knowledge, any valid grounds for any bona fide claim of
            any such kind. All registered, granted or issued patents,
            trademarks, Internet domain names and copyrights held by Company are
            subsisting and, to Company's knowledge, enforceable. To the
            knowledge of Company, there is no unauthorized use, infringement or
            misappropriation of any of the Company Intellectual Property by any
            third party, employee or former employee.

     (e)    All personnel, including employees, agents, consultants and
            contractors, who have contributed to or participated in the
            conception and development of the Company Intellectual Property on
            behalf of Company, have executed nondisclosure agreements
            substantially in the form set forth on Appendix C to the Company
            Disclosure Schedule and either (i) have been a party to a
            "work-for-hire" arrangement or agreements with Company in accordance
            with applicable national and state law that has accorded Company
            full, effective, exclusive and original ownership of all tangible
            and intangible property thereby arising, or (ii) have executed
            appropriate instruments of assignment in favor or Company as
            assignee that have conveyed to Company effective and exclusive
            ownership of all tangible and intangible property thereby arising.

     (f)    Company is not, nor as a result of the execution or delivery of this
            Agreement, or performance of Company's obligations hereunder, will
            Company be, in violation of any license, sublicense, agreement or
            instrument to which Company is a party or otherwise bound, nor will
            execution or delivery of this Agreement, or performance of Company's
            obligations hereunder, cause the diminution, termination or
            forfeiture of any Company Intellectual Property.

     (g)    Section 4.14(g) of the Company Disclosure Schedule contains a true
            and complete list of all of Company's software programs
            commercialized by Company (the "COMPANY SOFTWARE PROGRAMS"). Except
            with respect to software or technology licensed by Company, Company
            owns full and unencumbered right and good, valid and marketable
            title to such Company Software Programs free and clear of all
            mortgages, pledges, liens, security interests, conditional sales
            agreements, encumbrances or charges of any kind other than licenses
            granted in the ordinary course of business.

     (h)    The source code and system documentation relating to the Company
            Software Programs (i) have at all times been maintained in strict
            confidence, (ii) have been disclosed by Company only to employees
            who have a "need to know" the contents thereof in connection with
            the performance of their duties to Company and who have executed the
            nondisclosure agreements referred to in Section 4.14, and (iii) have
            not been disclosed to any third party except pursuant to
            nondisclosure agreements or in the ordinary course of business with
            respect to APIs and similar code disclosures to enhance
            marketability of Company Software Programs.

     (i)    The Company Software Programs (i) have been designed to ensure year
            2000 compatibility,


<PAGE>


            which includes, but is not limited to, date data century
            recognition, and calculations that accommodate same century and
            multi-century formulas and date values; (ii) operate and will
            operate in accordance with their specifications prior to, during and
            after the calendar year 2000 AD; and (iii) shall not end abnormally
            or provide invalid or incorrect results as a result of date data,
            specifically including date data which represents or references
            different centuries or more than one century.

SECTION 4.15      TAXES

     (a)    Company and each of Company Subsidiaries, and any consolidated,
            combined, unitary or aggregate group for Tax purposes of which
            Company or any Company Subsidiary is or has been a member, have
            properly completed and timely filed all material Tax Returns
            required to be filed by them and have paid all Taxes shown thereon
            to be due. Company has provided adequate accruals in accordance with
            generally accepted accounting principles in its latest financial
            statements included in the Company Reports for any Taxes that have
            not been paid, whether or not shown as being due on any Tax Returns.
            Other than Taxes incurred in the ordinary course of business,
            Company and the Company Subsidiaries have no material liability for
            unpaid Taxes accruing after the date of the Company's latest
            financial statements included in the Company Reports.

     (b)    There is (i) no material claim for Taxes that is a lien against the
            property of Company or any Company Subsidiary or is being asserted
            against Company or any Company Subsidiary other than liens for Taxes
            not yet due and payable, (ii) no audit of any Tax Return of Company
            or any Company Subsidiary being conducted by a Tax Authority; (iii)
            no extension of the statute of limitations on the assessment of any
            Taxes granted by Company or any Company Subsidiary and currently in
            effect, and (iv) no agreement, contract or arrangement to which
            Company or any Company Subsidiary is a party that may result in the
            payment of any amount that would not be deductible by reason of
            Section 280G or Section 404 of the Code.

     (c)    Company and the Company Subsidiaries have not been and will not be
            required by reason of the Merger to include any material adjustment
            in Taxable income for any Tax period (or portion thereof) pursuant
            to Section 481 or 263A of the Code or any comparable provision under
            state or foreign Tax laws as a result of transactions, events or
            accounting methods employed prior to the Merger.

     (d)    Neither Company nor any Company Subsidiary has filed or will file
            any consent to have the provisions of paragraph 341(f)(2) of the
            Code (or comparable provisions of any state Tax laws) apply to
            Company or any Company Subsidiary.

     (e)    Neither Company nor any Company Subsidiary is a party to any Tax
            sharing or Tax allocation agreement nor does Company or any Company
            Subsidiary have any liability or potential liability to another
            party under any such agreement.


<PAGE>


     (f)    Neither Company nor any Company Subsidiary has filed any disclosures
            under Section 6662 or comparable provisions of state, local or
            foreign law to prevent the imposition of penalties with respect to
            any Tax reporting position taken on any Tax Return.

     (g)    Neither Company nor any Company Subsidiary has ever been a member of
            a consolidated, combined or unitary group of which Company was not
            the ultimate parent corporation.

     (h)    Company and each Company Subsidiary has in its possession receipts
            for any Taxes paid to foreign Tax authorities. Neither Company nor
            any Company Subsidiary has ever been a "personal holding company"
            within the meaning of Section 542 of the Code or a "United Sates
            real property holding corporation" within the meaning of Section 897
            of the Code.

SECTION 4.16      INSURANCE

     Company and each Company Subsidiary is presently insured, and during each
of the past three calendar years has been insured, against such risks as
companies engaged in a similar business would, in accordance with good business
practice, customarily be insured. The policies of fire, theft, liability and
other insurance maintained with respect to the assets or businesses of Company
and Company Subsidiaries provide adequate coverage against loss. Company has
heretofore furnished to Parent a complete and correct list as of the date hereof
of all insurance policies maintained by Company or the Company Subsidiaries, and
has made available to Parent complete and correct copies of all such policies,
together with all riders and amendments thereto. All such policies are in full
force and effect and all premiums due thereon have been paid to the date hereof.
Company and the Company Subsidiaries have complied in all material respects with
the terms of such policies.

SECTION 4.17      PROPERTIES

     Company and the Company Subsidiaries have good and marketable title, free
and clear of all material mortgages, liens, pledges, charges or other
encumbrances to all their material tangible properties and assets, real,
personal or mixed, reflected in the Company's consolidated financial statements
contained in the Company's Annual Report on Form 10-K for the fiscal year ended
December 31, 1998, as being owned by Company and the Company Subsidiaries as of
the date thereof, other than (i) any properties or assets that have been sold or
otherwise disposed of in the ordinary course of business since the date of such
financial statements, (ii) liens disclosed in the notes to such financial
statements, (iii) liens arising in the ordinary course of business after the
date of such financial statements and (iv) liens that are not material in amount
or do not materially affect the value or operations of Company and the Company
Subsidiaries. All buildings, and all fixtures, equipment and other property and
assets that are material to its business on a consolidated basis, held under
leases or sub-leases by Company or any Company Subsidiary are held under valid
instruments enforceable in accordance with their respective terms, subject to
applicable laws of bankruptcy, insolvency or similar laws relating to creditors'
rights generally and to general principles of equity (whether applied in a
proceeding in law or


<PAGE>


equity). Substantially all of Company's and the Company Subsidiaries'
equipment in regular use which is material to the operation of Company or the
Company Subsidiaries, has been reasonably maintained and is in serviceable
condition, reasonable wear and tear excepted.

SECTION 4.18      AFFILIATES

     Section 4.18 of the Company Disclosure Schedule sets forth the names of
each person who is, in Company's reasonable judgment, an affiliate (as such
term is used in Rule 145 under the Securities Act or under applicable SEC
accounting releases with respect to pooling of interests accounting
treatment) of Company.

SECTION 4.19      OPINION OF FINANCIAL ADVISOR

     BancBoston Robertson Stephens Inc. ("ROBERTSON STEPHENS") has delivered to
the board of directors of Company its written opinion to the effect that, as of
the date hereof, the Exchange Ratio is fair to the holders of shares of Company
Common Stock from a financial point of view.

SECTION 4.20      BROKERS

     No broker, finder or investment banker (other than Robertson Stephens) is
entitled to any brokerage, finder's or other fee or commission in connection
with the Merger based upon arrangements made by or on behalf of Company. Company
has heretofore made available to Parent true, complete and correct copies of all
agreements between Company and Robertson Stephens pursuant to which such firm
would be entitled to any payment relating to the Merger.

SECTION 4.21      CERTAIN BUSINESS PRACTICES

     Neither Company nor any Company Subsidiary nor any directors, officers,
agents or employees of Company or any Company Subsidiary (in their capacities as
such) has (i) used any funds for unlawful contributions, gifts, entertainment or
other unlawful expenses relating to political activity, (ii) made any unlawful
payment to foreign or domestic government officials or employees or to foreign
or domestic political parties or campaigns or violated any provision of the
Foreign Corrupt Practices Act of 1977, as amended, or (iii) made any other
unlawful payment.

SECTION 4.22      SECTION 203 OF THE DGCL NOT APPLICABLE

     The Board of Directors of Company has approved the Merger, this Agreement
and the Stockholder Agreements, and such approval is sufficient to render
inapplicable to the Merger, this Agreement and the Stockholder Agreements and
the transactions contemplated by this Agreement and the Stockholder Agreements
the provisions of Section 203 of the DGCL. To Company's knowledge, no other
state takeover statute or similar statute or regulation applies or purports to
apply to the Merger, this Agreement, the Stockholders Agreements or the
transactions


<PAGE>


contemplated by this Agreement and the Stockholders Agreements.

SECTION 4.23      BUSINESS ACTIVITY RESTRICTION

     There is no non-competition or other similar agreement, commitment,
judgment, injunction, order or decree to which Company or any subsidiary of
Company is a party or subject to that has or could reasonably be expected to
have the effect of prohibiting or impairing the conduct of business by Company
in any material respect. Company has not entered into any agreement under which
Company is restricted in any material respect from selling, licensing or
otherwise distributing any of its technology or products to, or providing
services to, customers or potential customers or any class of customers, in any
geographic area, during any period of time or in any segment of the market or
line of business.

ARTICLE V

                    REPRESENTATIONS AND WARRANTIES OF PARENT

     Parent hereby represents and warrants to Company, subject to the exceptions
specifically disclosed in the Parent Disclosure Schedule, all such exceptions to
be referenced to a specific representation set forth in this Article V or to
otherwise be clearly applicable to representations hereof not specifically
referenced, that:

SECTION 5.01      ORGANIZATION AND QUALIFICATION; SUBSIDIARIES

     (a)    Parent and each directly and indirectly owned subsidiary of Parent
            (the "PARENT SUBSIDIARIES") has been duly organized and is validly
            existing and in good standing (to the extent applicable) under the
            laws of the jurisdiction of its incorporation or organization, as
            the case may be, and has the requisite corporate power and authority
            and all necessary governmental approvals to own, lease and operate
            its properties and to carry on its business as it is now being
            conducted. Parent, and each Parent Subsidiary is duly qualified or
            licensed to do business, and is in good standing (to the extent
            applicable), in each jurisdiction where the character of the
            properties owned, leased or operated by it or the nature of its
            business makes such qualification or licensing necessary, except for
            such failures to be so qualified or licensed and in good standing
            that could not reasonably be expected to have, individually or in
            the aggregate, a Parent Material Adverse Effect.

     (b)    Section 5.01 of the Parent Disclosure Schedule sets forth, as of the
            date of this Agreement, a true and complete list of each Parent
            Subsidiary, together with (i) the jurisdiction of incorporation or
            organization of each Parent Subsidiary and the percentage of each
            Parent Subsidiary's outstanding capital stock or other equity
            interests owned by Parent or another Parent Subsidiary and (ii) an
            indication of whether each Parent Subsidiary is a "Significant
            Subsidiary" as defined in Regulation S-X under the Exchange Act.
            Neither Parent nor any Parent Subsidiary owns an


<PAGE>


            equity interest in any partnership or joint venture arrangement or
            other business entity that is material to the business, assets,
            liabilities, financial condition or results of operations of Parent
            and the Parent Subsidiaries, taken as a whole.

SECTION 5.02      CERTIFICATE OF INCORPORATION AND BYLAWS

     The copies of each of Parent's and Merger Subs' certificate of
incorporation and bylaws previously provided to Company by Parent are true,
complete and correct copies thereof. Such certificates of incorporation and
bylaws are in full force and effect.

SECTION 5.03      CAPITALIZATION

     The authorized capital stock of Parent consists of 400,000,000 shares of
Parent Common Stock and 5,000,000 shares of preferred stock. As of the date
hereof (i) 39,763,603 shares of Parent Common Stock are issued and outstanding,
all of which are validly issued, fully paid and nonassessable, (ii) no shares of
Parent Common Stock are held in the treasury of the Company, (iii) no shares of
Parent Common Stock are held by the Parent Subsidiaries, (iv) 5,495,205 shares
of Parent Common Stock are reserved for future issuance pursuant to outstanding
options and warrants to purchase Parent Common Stock ("PARENT STOCK OPTION"), of
which 4,195,377 and 1,299,828 shares of Parent Common Stock are reserved for
future issuance pursuant to unvested, outstanding and vested, outstanding,
unexercised Parent Stock Options, respectively, and (v) no shares of Parent
preferred stock are issued and outstanding. Except for the shares of Parent
Common Stock issuable pursuant to the Parent Stock Plans, there are no options,
warrants or other rights, agreements, arrangements or commitments of any
character to which Parent is a party or by which Parent is bound relating to the
issued or unissued capital stock of Parent or any Parent Subsidiary or
obligating Parent or any Parent Subsidiary to issue or sell any shares of
capital stock of, or other equity interests in, Parent or any Parent Subsidiary.
All shares of Parent Common Stock subject to issuance as aforesaid, upon
issuance prior to the Effective Time on the terms and conditions specified in
the instruments pursuant to which they are issuable, will be duly authorized,
validly issued, fully paid and nonassessable. There are no outstanding
contractual obligations of Parent or any Parent Subsidiary to repurchase, redeem
or otherwise acquire any shares of Parent Common Stock or any capital stock of
any Parent Subsidiary. Each outstanding share of capital stock of each Parent
Subsidiary is duly authorized, validly issued, fully paid and nonassessable and
each such share owned by Parent or another Parent Subsidiary is free and clear
of all security interests, liens, claims, pledges, options, rights of first
refusal, agreements, limitations on Parent's or such other Parent Subsidiary's
voting rights, charges and other encumbrances of any nature whatsoever. There
are no material outstanding contractual obligations of Parent or any Parent
Subsidiary to provide funds to, or make any material investment (in the form of
a loan, capital contribution or otherwise) in, any Parent Subsidiary or any
other person.

SECTION 5.04      AUTHORITY RELATIVE TO THIS AGREEMENT


<PAGE>


     Each of Parent and Merger Sub has all necessary corporate power and
authority to execute and deliver this Agreement, to perform its obligations
hereunder and to consummate the transactions contemplated hereby. The execution
and delivery of this Agreement by each of Parent and Merger Sub and the
consummation by Parent and Merger Sub of the transactions contemplated hereby
have been duly and validly authorized by all necessary corporate action, and no
other corporate proceedings on the part of Parent or Merger Sub are necessary to
authorize this Agreement or to consummate such transactions. This Agreement has
been duly executed and delivered by each of Parent and Merger Sub and, assuming
the due authorization, execution and delivery by Company, constitutes a legal,
valid and binding obligation of each of Parent and Merger Sub enforceable
against Parent and Merger Sub in accordance with its terms, subject to the
effect of any applicable bankruptcy, moratorium, insolvency, reorganization or
other similar law affecting the enforceability of creditors' rights generally
and to the effect of general principles of equity which may limit the
availability of remedies (whether in a proceeding at law or in equity).

SECTION 5.05      NO CONFLICT; REQUIRED FILINGS AND CONSENTS

     (a)    The execution and delivery of this Agreement by Parent and Merger
            Sub does not, and the performance by Parent and Merger Sub of their
            obligations hereunder and the consummation of the Merger will not,
            (i) conflict with or violate any provision of the certificate of
            incorporation or bylaws of Parent or any equivalent organizational
            documents of any Parent Subsidiary, (ii) assuming that all consents,
            approvals, authorizations and permits described in Section 5.05(b)
            have been obtained and all filings and notifications described in
            Section 5.05(b) have been made, conflict with or violate any Law
            applicable to Parent or any other Parent Subsidiary or by which any
            property or asset of Parent or any Parent Subsidiary is bound or
            affected or (iii) result in any breach of or constitute a default
            (or an event which with the giving of notice or lapse of time or
            both could reasonably be expected to become a default) under, or
            give to others any right of termination, amendment, acceleration or
            cancellation of, or result in the creation of a lien or other
            encumbrance on any property or asset of Parent or any Parent
            Subsidiary pursuant to, any note, bond, mortgage, indenture,
            contract, agreement, lease, license, permit, franchise or other
            instrument or obligation.

     (b)    The execution and delivery of this Agreement by Parent and Merger
            Sub does not, and the performance by Parent and Merger Sub of their
            obligations hereunder and the consummation of the Merger will not,
            require any consent, approval, authorization or permit of, or filing
            by Parent with or notification by Parent to, any Governmental
            Entity, except pursuant to applicable requirements of the Exchange
            Act, the Securities Act, Blue Sky Laws, the rules and regulations of
            the NNM, state takeover laws, the premerger notification
            requirements of the HSR Act, if any, and the filing and recordation
            of the Certificate of Merger as required by the DGCL.

SECTION 5.06      SEC FILINGS; FINANCIAL STATEMENTS

     (a)    Parent has timely filed all forms, reports, statements and documents
            required to be filed by it (A)


<PAGE>


            with the SEC since March 1, 1998 (collectively, together with any
            such forms, reports, statements and documents Parent may file
            subsequent to the date hereof until the Closing, the "PARENT
            REPORTS") and (B) with any other Governmental Entities. Each Parent
            Report (i) was prepared in all material respects in accordance with
            the requirements of the Securities Act, the Exchange Act or the NNM,
            as the case may be, and (ii) did not at the time it was filed (or,
            in the case of registration statements filed under the Security Act,
            at the time of effectiveness) contain any untrue statement of a
            material fact or omit to state a material fact required to be stated
            therein or necessary in order to make the statements made therein,
            in the light of the circumstances under which they were made, not
            misleading. Each material form, report, statement and document
            referred to in clause (B) of this paragraph was prepared in all
            material respects in accordance with the requirements of applicable
            Law. No Parent Subsidiary is subject to the periodic reporting
            requirements of the Exchange Act or required to file any form,
            report or other document with the SEC, the NNM, any other stock
            exchange or any other comparable Governmental Entity.

     (b)    Except as is provided in the Parent Reports, each of the
            consolidated financial statements (including, in each case, any
            notes thereto) contained in the Parent Reports was prepared in
            accordance with U.S. GAAP applied on a consistent basis throughout
            the periods indicated (except as may be indicated in the notes
            thereto) and each presented fairly, in all material respects, the
            consolidated financial position of Parent and the consolidated
            Parent Subsidiaries as at the respective dates thereof and for the
            respective periods indicated therein, except as otherwise noted
            therein (subject, in the case of unaudited statements, to normal and
            recurring immaterial year-end adjustments).

     (c)    Except as and to the extent set forth or reserved against on the
            consolidated balance sheet of Parent and the Parent Subsidiaries as
            reported in the Parent Reports, including the notes thereto, none of
            Parent or any Parent Subsidiary has any liabilities or obligations
            of any nature (whether accrued, absolute, contingent or otherwise)
            that would be required to be reflected on a balance sheet or in
            notes thereto prepared in accordance with U.S. GAAP, except for
            liabilities or obligations incurred in the ordinary course of
            business consistent with past practice since December 31, 1998 that
            have not had and could not reasonably be expected to have,
            individually or in the aggregate, a Parent Material Adverse Effect.

SECTION 5.07      POOLING; CERTAIN TAX MATTERS

     Neither Parent nor, to the knowledge of Parent, any of its affiliates has
taken or agreed to take any action (other than actions contemplated by this
Agreement) that could reasonably be expected to prevent (a) the Merger from
being treated for accounting purposes as a "pooling of interests" in accordance
with U.S. GAAP and the accounting standards of the SEC or (b) the Merger from
constituting a "reorganization" under Section 368 of the Code. Parent is not
aware of any agreement, plan or other circumstance that could reasonably be
expected to prevent the Merger from being so treated as a "pooling of interests"
or from so qualifying as a reorganization under Section 368 of the Code.


<PAGE>


SECTION 5.08      OPINION OF FINANCIAL ADVISOR

     Goldman, Sachs & Co. ("GOLDMAN SACHS") has delivered to the board of
directors of Parent its written opinion to the effect that, as of the date
hereof, the Exchange Ratio is fair, from a financial point of view, to Parent.

SECTION 5.09      BROKERS

     No broker, finder or investment banker (other than Goldman Sachs) is
entitled to any brokerage, finder's or other fee or commission in connection
with the Merger based upon arrangements made by or on behalf of Parent. Parent
has heretofore made available to Company true, complete and correct copies of
all agreements between Parent and Goldman Sachs pursuant to which such firm
would be entitled to any payment relating to the Merger.

SECTION 5.10      AFFILIATES

     Section 5.10 of the Parent Disclosure Schedule sets forth the names of
each person who is, in Parent's reasonable judgment, an affiliate of Parent.

ARTICLE VI

                                    COVENANTS

SECTION 6.01      CONDUCT OF BUSINESS BY COMPANY PENDING THE CLOSING

     Company agrees that, between the date of this Agreement and the Effective
Time, unless Parent shall otherwise agree in writing, (x) the respective
businesses of Company and the Company Subsidiaries shall be conducted only in,
and Company and the Company Subsidiaries shall not take any action except in,
the ordinary course of business consistent with past practice and (y) Company
shall use all reasonable efforts to keep available the services of such of the
current officers, significant employees and consultants of Company and the
Company Subsidiaries and to preserve the current relationships of Company and
the Company Subsidiaries with such of the corporate partners, customers,
suppliers and other persons with which Company or any Company Subsidiary has
significant business relations in order to preserve substantially intact its
business organization. By way of amplification and not limitation, neither
Company nor any Company Subsidiary shall, between the date of this Agreement and
the Effective Time, directly or indirectly, do, or agree to do, any of the
following without the prior written consent of Parent:

     (a)    amend or otherwise change its certificate of incorporation or bylaws
            or equivalent organizational documents;

     (b)    issue, sell, pledge, dispose of, grant, transfer, lease, license,
            guarantee or encumber, or authorize


<PAGE>


            the issuance, sale, pledge, disposition, grant, transfer, lease,
            license or encumbrance of, (i) any shares of capital stock of
            Company or any Company Subsidiary of any class, or securities
            convertible into or exchangeable or exercisable for any shares of
            such capital stock, or any options, warrants or other rights of any
            kind to acquire any shares of such capital stock, or any other
            ownership interest (including, without limitation, any phantom
            interest), of Company or any Company Subsidiary, other than (x) the
            issuance of shares of Company Common Stock pursuant to the exercise
            of warrants or stock options therefor outstanding as of the date of
            this Agreement, or (y) the issuance in the ordinary course of
            business consistent with past practice of up to an additional
            500,000 shares of Company Common Stock under Company's Stock
            Plans pursuant to new grants of options or share purchase rights
            or (ii) any property or assets of Company or any Company
            Subsidiary except sales of inventory in the ordinary course of
            business consistent with past practice;

     (c)    (i) acquire (including, without limitation, by merger,
            consolidation, or acquisition of stock or assets) any interest in
            any corporation, partnership, other business organization or person
            or any division thereof (other than in connection with the formation
            of foreign subsidiaries and the capitalization thereof with no more
            than $500,000); (ii) incur any indebtedness for borrowed money
            (other than in de minimus amounts) or issue any debt securities or
            assume, guarantee or endorse, or otherwise as an accommodation
            become responsible for, the obligations of any person for borrowed
            money or make any loans or advances material to the business,
            assets, liabilities, financial condition or results of operations of
            Company and the Company Subsidiaries, taken as a whole; (iii)
            terminate, cancel or request any material change in, or agree to any
            material change in, any Company Material Contract or other material
            License Agreement (other than as described in Section 6.01(c)(iii)
            of the Company Disclosure Schedule); (iv) make or authorize any
            capital expenditure, other than capital expenditures in the ordinary
            course of business that have been described in the Disclosure
            Schedule and that are not, in the aggregate, in excess of $4,000,000
            for Company and the Company Subsidiaries taken as a whole; or (v)
            enter into or amend any contract, agreement, commitment or
            arrangement that, if fully performed, would not be permitted under
            this Section 6.01(c);

     (d)    declare, set aside, make or pay any dividend or other distribution,
            payable in cash, stock, property or otherwise, with respect to any
            of its capital stock, except that any Company Subsidiary may pay
            dividends or make other distributions to Company or any other
            Company Subsidiary;

     (e)    reclassify, combine, split, subdivide or redeem, purchase or
            otherwise acquire, directly or indirectly, any of its capital stock
            except repurchases of unvested shares at cost in connection with the
            termination of the employment relationship with any employee
            pursuant to stock option or purchase agreements in effect on the
            date hereof;

     (f)    amend or change the period (or permit any acceleration, amendment or
            change) of exercisability of options granted under the Company Stock
            Plans or authorize cash payments in exchange for any Company Stock
            Options granted under any of such plans, except pursuant to existing


<PAGE>


            arrangements disclosed to Parent prior to the date hereof;

     (g)    amend the terms of, repurchase, redeem or otherwise acquire, or
            permit any Company Subsidiary to repurchase, redeem or otherwise
            acquire, any of its securities or any securities of any Company
            Subsidiary or propose to do any of the foregoing;

     (h)    other than pursuant to existing agreements of Company previously
            provided to Parent, increase the compensation payable or to become
            payable to its directors, officers, consultants or employees (other
            than any such increases for non-officers that are made in the
            ordinary course of business consistent with past practice), grant
            any rights to severance or termination pay to, or enter into any
            employment or severance agreement which provides benefits upon a
            change in control of Company that would be triggered by the Merger
            with, any director, officer, consultant or other employee of Company
            or any Company Subsidiary who is not currently entitled to such
            benefits from the Merger, establish, adopt, enter into or amend any
            collective bargaining, bonus, profit sharing, thrift, compensation,
            stock option, restricted stock, pension, retirement, deferred
            compensation, employment, termination, severance or other plan,
            agreement, trust, fund, policy or arrangement for the benefit of any
            director, officer, consultant or employee of Company or any Company
            Subsidiary (except as allowed under Section 6.01(b)), except to the
            extent required by applicable Law or the terms of a collective
            bargaining agreement, or enter into or amend any contract,
            agreement, commitment or arrangement between Company or any Company
            Subsidiary and any of Company's directors, officers, consultants or
            employees (except as allowed under Section 6.01(b));

     (i)    except as permitted under Section 6.01(c), pay, discharge or satisfy
            any claims, liabilities or obligations (absolute, accrued, asserted
            or unasserted, contingent or otherwise), other than the payment,
            discharge or satisfaction in the ordinary course of business and
            consistent with past practice of liabilities (A) reflected or
            reserved against on the consolidated balance sheet of Company and
            the consolidated the Company Subsidiaries dated as of March 31, 1999
            included in Company's quarterly report on Form 10-Q for the period
            then ended (the "COMPANY BALANCE SHEET") and only to the extent of
            such reserves or (B) that are both immaterial in amount and incurred
            in the ordinary course of business consistent with past practice
            after the date of the Company Balance Sheet;

     (j)    make any change with respect to Company's accounting policies,
            principles, methods or procedures, including, without limitation,
            revenue recognition policies, other than as required by U.S. GAAP;

     (k)    make any material Tax election or settle or compromise any material
            Tax liability; or

     (l)    authorize or enter into any formal or informal agreement or
            otherwise make any commitment to do any of the foregoing or to take
            any action which would make any of the representations or warranties
            of Company contained in this Agreement untrue or incorrect in any
            material respect or result in any of the conditions to the Merger
            set forth herein not being satisfied, except as


<PAGE>


            specifically permitted hereunder.

SECTION 6.02      NOTICES OF CERTAIN EVENTS

     Each of Parent and Company shall give prompt notice to the other of (i)
any notice or other communication from any person alleging that the consent
of such person is or may be required in connection with the Merger; (ii) any
notice or other communication from any Governmental Entity in connection with
the Merger; (iii) any actions, suits, claims, investigations or proceedings
commenced or, to its knowledge, threatened against, relating to or involving
or otherwise affecting Parent or the Parent Subsidiaries or Company or the
Company Subsidiaries, respectively, or that relate to the consummation of the
Merger; (iv) the occurrence of a default or event that, with the giving of
notice or lapse of time or both, will become a default under any Material
Contract of Parent or Company Material Contract, respectively; and (v) any
change that could reasonably be expected to have a Parent Material Adverse
Effect or a Company Material Adverse Effect, respectively, or to delay or
impede the ability of either Parent or Company, respectively, to perform
their respective obligations pursuant to this Agreement and to effect the
consummation of the Merger.

SECTION 6.03      ACCESS TO INFORMATION; CONFIDENTIALITY

     (a)    Except as required pursuant to any confidentiality agreement or
            similar agreement or arrangement to which Parent or Company or any
            of the Parent Subsidiaries or the Company Subsidiaries is a party or
            pursuant to applicable Law or the regulations or requirements of any
            stock exchange or other regulatory organization with whose rules a
            party hereto is required to comply, from the date of this Agreement
            to the Effective Time, Parent and Company shall (and shall cause the
            Parent Subsidiaries and Company Subsidiaries, respectively, to) (i)
            provide to the other (and its officers, directors, employees,
            accountants, consultants, legal counsel, agents and other
            representatives (collectively, "REPRESENTATIVES")) access at
            reasonable times upon prior notice to its and its subsidiaries'
            officers, employees, agents, properties, offices and other
            facilities and to the books and records thereof, and (ii) furnish
            promptly such information concerning its and its subsidiaries'
            business, properties, contracts, assets, liabilities and personnel
            as the other party or its Representatives may reasonably request. No
            investigation conducted pursuant to this Section 6.03 shall affect
            or be deemed to modify any representation or warranty made in this
            Agreement.

     (b)    The parties hereto shall comply with, and shall cause their
            respective Representatives to comply with, all of their respective
            obligations under the Confidentiality Agreement with respect to the
            information disclosed pursuant to this Section 6.03.

SECTION 6.04      NO SOLICITATION OF TRANSACTIONS

     Until this Agreement has been terminated as provided herein, Company shall
not, directly or indirectly, and shall cause its Representatives not to,
directly or indirectly, solicit,


<PAGE>


initiate or encourage (including by way of furnishing nonpublic information),
any inquiries or the making of any proposal or offer (including, without
limitation, any proposal or offer to its stockholders) that constitutes, or may
reasonably be expected to lead to, any Competing Transaction, or enter into or
maintain or continue discussions or negotiate with any person in furtherance of
such inquiries or to obtain a Competing Transaction, or agree to or endorse any
Competing Transaction, or authorize or permit any of Company's Representatives
or subsidiaries, or any Representative retained by Company's subsidiaries, to
take any such action; PROVIDED, HOWEVER, that nothing contained in this
Agreement, including this Section 6.04, shall prohibit the Company or the board
of directors of Company (i) from complying with Rule 14d-9 or 14e-2(a)
promulgated under the Exchange Act with regard to a tender or exchange offer not
made in violation of this Section 6.04 or (ii) prior to receipt of the approval
by the stockholders of Company of this Agreement and the Merger from providing
information (subject to a confidentiality agreement at least as restrictive as
the Confidentiality Agreement) in connection with, and negotiating, another
unsolicited, bona fide written proposal regarding a Competing Transaction that
(i) Company's board of directors shall have concluded in good faith, in part on
the basis of advice of independent outside counsel of nationally recognized
reputation, that such action is necessary to prevent Company's board of
directors from violating its fiduciary duties to Company's stockholders under
applicable law, (ii) if any cash consideration is involved, shall not be subject
to any financing contingency, and with respect to which Company's board of
directors shall have determined (based in part upon the advice of Company's
independent financial advisors of nationally recognized reputation) that the
acquiring party is reasonably capable of consummating such Competing Transaction
on the terms proposed, and (iii) Company's board of directors reasonably
believes in good faith that such Competing Transaction provides greater value to
the stockholders of Company than the Merger (based in part upon the written
opinion of Company's independent financial advisors of nationally recognized
reputation that such Competing Transaction is superior from a financial point of
view) (any such Competing Transaction being referred to herein as a "SUPERIOR
PROPOSAL"). Any violation of the restrictions set forth in this Section 6.04 by
any Representative of Company or any of its Subsidiaries, whether or not such
Person is purporting to act on behalf of Company or otherwise, shall be deemed
to be a breach of this Section 6.04 by Company. Company shall notify Parent
promptly if any proposal or offer, or any inquiry or contact with any person
with respect thereto, regarding a Competing Transaction is made, such notice to
include the identity of the person making such proposal, offer, inquiry or
contact, and the terms of such Competing Transaction, and shall keep Parent
apprised, on a current basis, of the status of such Competing Transaction and of
any modifications to the terms thereof. Company immediately shall cease and
cause to be terminated all existing discussions or negotiations with any parties
conducted heretofore with respect to a Competing Transaction. Company shall not
release any third party from, or waive any provision of, any confidentiality or
standstill agreement to which it is a party.

SECTION 6.05      TAX-FREE TRANSACTION; POOLING

     From and after the date of this Agreement, each party hereto shall use all


<PAGE>


reasonable efforts to cause the Merger to qualify, and shall not knowingly take
any actions or cause any actions to be taken which could reasonably be expected
to prevent the Merger from (a) qualifying as a "reorganization" under Section
368(a) of the Code or (b) being treated for financial accounting purposes as a
"pooling of interests" in accordance with U.S. GAAP and the accounting standards
of the SEC.

SECTION 6.06      CONTROL OF OPERATIONS

     Nothing contained in this Agreement shall give Parent, directly or
indirectly, the right to control or direct the operations of Company and the
Company Subsidiaries prior to the Effective Time. Prior to the Effective Time,
Company shall exercise, consistent with the terms and conditions of this
Agreement, complete control and supervision over its operations.

SECTION 6.07      FURTHER ACTION; CONSENTS; FILINGS

     (a)    Upon the terms and subject to the conditions hereof, each of the
            parties hereto shall use all reasonable efforts to (i) take, or
            cause to be taken, all appropriate action, and do, or cause to be
            done, all things necessary, proper or advisable under applicable Law
            or otherwise to consummate and make effective the Merger, (ii)
            obtain from Governmental Entities any consents, licenses, permits,
            waivers, approvals, authorizations or orders required to be obtained
            or made by Parent or Company or any of their respective subsidiaries
            in connection with the authorization, execution and delivery of this
            Agreement and the consummation of the Merger and (iii) make all
            necessary filings, and thereafter make any other required or
            appropriate submissions, with respect to this Agreement and the
            Merger required under (A) the rules and regulations of the NNM, (B)
            the Securities Act, the Exchange Act and any other applicable
            Federal or state securities Laws, (C) the HSR Act, if any, and (D)
            any other applicable Law. The parties hereto shall cooperate and
            consult with each other in connection with the making of all such
            filings, including by providing copies of all such documents to the
            nonfiling parties and their advisors prior to filing, and none of
            the parties shall file any such document if any of the other parties
            shall have reasonably objected to the filing of such document. No
            party shall consent to any voluntary extension of any statutory
            deadline or waiting period or to any voluntary delay of the
            consummation of the Merger at the behest of any Governmental Entity
            without the consent and agreement of the other parties hereto, which
            consent shall not be unreasonably withheld or delayed.

     (b)    Each of Company and Parent will give (or will cause their respective
            subsidiaries to give) any notices to third persons, and use, and
            cause their respective subsidiaries to use, reasonable efforts to
            obtain any consents from third persons necessary, proper or
            advisable (as determined in good faith by Parent with respect to
            such notices or consents to be delivered or obtained by Company) to
            consummate the transactions contemplated by this Agreement.

SECTION 6.08      ADDITIONAL REPORTS


<PAGE>


     Company and Parent shall each furnish to the other copies of any reports of
the type referred to in Sections 4.07 and 5.06, which it files with the SEC on
or after the date hereof, and Company and Parent, as the case may be, covenant
and warrant that as of the respective dates thereof, such reports will not
contain any untrue statement of a material fact or omit to state a material fact
required to be stated therein or necessary to make the statements therein, in
light of the circumstances under which they were made, not misleading. Any
unaudited consolidated interim financial statements included in such reports
(including any related notes and schedules) will fairly present in all material
respects the financial position of Company and its consolidated subsidiaries or
Parent and its consolidated subsidiaries, as the case may be, as of the dates
thereof and the results of operations and changes in financial position or other
information including therein for the periods or as of the date then ended
(subject, where appropriate, to normal year-end adjustments), in each case in
accordance with past practice and U.S. GAAP consistently applied during the
periods involved (except as otherwise disclosed in the notes thereto).

SECTION 6.09      TAX INFORMATION

     Company shall provide the following information to Parent not later than
two weeks after the date of this Agreement: (i) a complete list of the types of
Tax Returns being filed by Company and each Company Subsidiary in each taxing
jurisdiction, (ii) a list of all closed years with respect to each such type of
Tax Return filed in each jurisdiction, and (iii) a list of any deferred
intercompany gain with respect to transactions to which Company or any Company
Subsidiary has been a party. Company shall provide Parent and its accountants,
counsel and other representatives reasonable access, during normal business
hours during the period prior to the Effective Time, to all of Company's and
Company Subsidiaries' Tax Returns and other records and workpapers relating to
Taxes.

SECTION 6.10      CONDUCT OF BUSINESS BY PARENT.

     During the period from the date of this Agreement and continuing until the
earlier of the termination of this Agreement pursuant to its terms or the
Effective Time, Parent shall not knowingly take any action a principal purpose
of which is, and the reasonably likely result of which would be, a material
delay in or interference with the consummation of the Merger.

ARTICLE VII

                              ADDITIONAL AGREEMENTS

SECTION 7.01      REGISTRATION STATEMENT; PROXY STATEMENT

     (a)    As promptly as practicable after the execution of this Agreement,
            Parent and Company shall jointly prepare and shall file with the SEC
            a document or documents that will constitute (i) the prospectus
            forming part of the registration statement on Form S-4 of Parent
            (together with all


<PAGE>


            amendments thereto, the "REGISTRATION STATEMENT"), in connection
            with the registration under the Securities Act of Parent Common
            Stock to be issued to Company's stockholders pursuant to the Merger
            and (ii) the proxy statement with respect to the Merger relating to
            the special meeting of Company's stockholders to be held to
            consider approval of this Agreement and the Merger (the "COMPANY
            STOCKHOLDERS' MEETING") (together with any amendments thereto, the
            "PROXY STATEMENT"). Copies of the Proxy Statement shall be provided
            to the NNM in accordance with its rules. Each of the parties hereto
            shall use all reasonable efforts to cause the Registration Statement
            to become effective as promptly as practicable after the date
            hereof, and, prior to the effective date of the Registration
            Statement, the parties hereto shall take all action required under
            any applicable Laws in connection with the issuance of shares of
            Parent Common Stock pursuant to the Merger. Parent or Company, as
            the case may be, shall furnish all information concerning Parent or
            Company as the other party may reasonably request in connection with
            such actions and the preparation of the Registration Statement and
            the Proxy Statement. As promptly as practicable after the effective
            date of the Registration Statement, the Proxy Statement shall be
            mailed to the stockholders of Company. Each of the parties hereto
            shall cause the Proxy Statement to comply as to form and substance
            as to such party in all material respects with the applicable
            requirements of (i) the Exchange Act, (ii) the Securities Act, (iii)
            the rules and regulations of the NNM.

     (b)    The Proxy Statement shall include (i) the approval of the Merger and
            the recommendation of the board of directors of Company to Company's
            stockholders that they vote in favor of approval of this Agreement
            and the Merger, subject to the right of the board of directors of
            Company to withdraw its recommendation and recommend a Superior
            Proposal in compliance with Section 6.04 of this Agreement, and (ii)
            the opinion of Robertson Stephens referred to in Section 4.19. The
            board of directors of Company shall submit this Agreement to
            Company's stockholders whether or not at any time subsequent to the
            date hereof such board determines that it can no longer make such
            recommendation; PROVIDED, HOWEVER, that, in the case of such
            withdrawal of such board's recommendation, Company may delay or
            adjourn the meeting at which this Agreement is submitted to such
            stockholders by as many as ten business days in order to give such
            stockholders a reasonable opportunity to consider such withdrawal of
            recommendation.

     (c)    No amendment or supplement to the Proxy Statement or the
            Registration Statement shall be made without the approval of Parent
            and Company, which approval shall not be unreasonably withheld or
            delayed; PROVIDED, HOWEVER, that the consent of Parent shall not be
            required to amend or supplement the Proxy Statement to reflect the
            withdrawal of the recommendation of Company's board of directors
            that Company's stockholders vote in favor of the approval of this
            Agreement and/or the recommendation that Company's stockholders
            approve of a Superior Proposal. Each of the parties hereto shall
            advise the other parties hereto, promptly after it receives notice
            thereof, of the time when the Registration Statement has become
            effective or any supplement or amendment has been filed, of the
            issuance of any stop order, of the suspension of the qualification
            of the Parent Common Stock issuable in connection with the Merger
            for offering or sale in any jurisdiction, or of any request by the
            SEC for amendment of the Proxy


<PAGE>


            Statement or the Registration Statement or comments thereon and
            responses thereto or requests by the SEC for additional information.

     (d)    None of the information supplied by Company for inclusion or
            incorporation by reference in the Registration Statement or the
            Proxy Statement shall, at the respective times filed with the SEC or
            other regulatory agency and, in addition, (A) in the case of the
            Proxy Statement, at the date it or any amendments or supplements
            thereto are mailed to stockholders of Company, at the time of the
            Company Stockholders' Meeting and at the Effective Time and (B) in
            the case of the Registration Statement, when it becomes effective
            under the Securities Act and at the Effective Time, contain any
            untrue statement of a material fact or omit to state any material
            fact required to be stated therein or necessary in order to make the
            statements therein, in light of the circumstances under which they
            are made, not misleading. If at any time prior to the Effective Time
            any event or circumstance relating to Company or any Company
            Subsidiary, or their respective officers or directors, should be
            discovered by Company that should be set forth in an amendment or a
            supplement to the Registration Statement or the Proxy Statement,
            Company shall promptly inform Parent. All documents that Company is
            responsible for filing with the SEC in connection with the Merger
            will comply as to form in all material respects with the applicable
            requirements of the rules and regulations of the Securities Act and
            the Exchange Act.

     (e)    None of the information supplied by Parent for inclusion or
            incorporation by reference in the Registration Statement or the
            Proxy Statement shall, at the respective times filed with the SEC or
            other regulatory agency and, in addition, (A) in the case of the
            Proxy Statement, at the date it or any amendments or supplements
            thereto are mailed to stockholders of Company, at the time of
            Company Stockholders' meeting and at the Effective Time and (B) in
            the case of the Registration Statement, when it becomes effective
            under the Securities Act and at the Effective Time, contain any
            untrue statement of a material fact or omit to state any material
            fact required to be stated therein or necessary in order to make the
            statements therein, in light of the circumstances under which they
            are made, not misleading. If, at any time prior to the Effective
            Time, any event or circumstance relating to Parent or any Parent
            Subsidiary, or their respective officers or directors, should be
            discovered by Parent that should be set forth in an amendment or a
            supplement to the Registration Statement or the Proxy Statement,
            Parent shall promptly inform Company. All documents that Parent is
            responsible for filing with the SEC in connection with the Merger
            will comply as to form in all material respects with the applicable
            requirements of the rules and regulations of the Securities Act and
            the Exchange Act.

SECTION 7.02      STOCKHOLDERS' MEETING

     Company shall call and hold the Company Stockholders' Meeting as promptly
as practicable after the date hereof for the purpose of voting upon the approval
of this Agreement and the Merger pursuant to the Proxy Statement, and Company
shall use all reasonable efforts to hold the Company Stockholders' Meeting as
soon as practicable after the date on which the Registration Statement becomes
effective, subject to Company's right to delay or adjourn such meeting as
provided in Section 7.01(c). Unless Company's board of directors has withdrawn
its


<PAGE>


recommendation of this Agreement and the Merger in compliance with Section
6.04, Company shall use all reasonable efforts to solicit from its stockholders
proxies in favor of the approval of this Agreement and the Merger pursuant to
the Proxy Statement and shall take all other action necessary or advisable to
secure the vote or consent of stockholders required by the DGCL or applicable
other stock exchange requirements to obtain such approval. Company shall take
all other action necessary or, in the reasonable opinion of Parent, advisable to
promptly and expeditiously secure any vote or consent of stockholders required
by applicable Law and Company's certificate of incorporation and bylaws to
effect the Merger. Company shall call and hold the Company Stockholders' Meeting
for the purpose of voting upon the approval of this Agreement and the Merger
whether or not Company's board of directors at any time subsequent to the date
hereof determines that this Agreement is no longer advisable or recommends that
Company's stockholders reject it.

SECTION 7.03      AFFILIATES

     (a)    Company will use reasonable efforts to obtain an executed letter
            agreement substantially in the form of Annex B hereto from (i) each
            person identified in Section 4.18 of the Company Disclosure Schedule
            within 15 days following the execution and delivery of this
            Agreement and (ii) from any person who, to the knowledge of Company,
            may be deemed to have become an affiliate of Company after the date
            of this Agreement and prior to the Effective Time as soon as
            practicable after attaining such status. The foregoing
            notwithstanding, Parent shall be entitled to place legends as
            specified in the Affiliate Agreement on the certificates evidencing
            any of the Parent Common Stock to be received by (i) any affiliate
            of Company or (ii) any person Parent reasonably identifies (by
            written notice to Company) as being a person who may be deemed an
            "affiliate" within the meaning of Rule 145 promulgated under the
            Securities Act, and to issue appropriate stop transfer instructions
            to the transfer agent for such Parent Common Stock, consistent with
            the terms of the Affiliate Agreement, regardless of whether such
            person has executed Affiliate Agreement and regardless of whether
            such person's name appears on Section 4.18 of the Company
            Disclosure Schedule.

     (b)    Parent will use reasonable efforts to obtain an executed letter
            agreement substantially in the form of Annex C hereto from (i) each
            person identified in Section 5.10 of the Parent Disclosure Schedule
            within 15 days following the execution and delivery of this
            Agreement and (ii) from any person who, to the knowledge of Parent,
            may be deemed to have become an affiliate of Parent after the date
            of this Agreement and prior to the Effective Time as soon as
            practicable after attaining such status.

SECTION 7.04      DIRECTORS' AND OFFICERS' INDEMNIFICATION AND INSURANCE

     (a)    Parent and the Merger Sub agree that all rights to indemnification,
            advancement of expenses, exculpation, limitation of liability and
            any and all similar rights now existing in favor of each present and
            former director, officer, employee and agent of Company and each
            Company Subsidiary (collectively, the "Indemnified Parties") as
            provided in the Company's present


<PAGE>


            charter, by-laws or contractual arrangements in effect on the date
            hereof, shall survive the Merger and shall continue in full force
            and effect for a period of six years from the Effective Time, which
            provisions shall not be amended, repealed or otherwise modified for
            a period of six years from the Effective Time in any manner that
            would affect adversely the rights thereunder of individuals who at
            any time prior to the Effective Time were directors, officers,
            employees or agents of the Company, unless such modification shall
            be required by law, and Parent agrees to cause the Surviving
            Corporation to comply with its obligations thereunder; provided,
            however, that in the event any claim or claims are asserted or made
            within such six-year period, all rights to indemnification in
            respect to any such claim or claims shall continue until the
            disposition of any and all such claims.

     (b)    In the event the Company or the Surviving Corporation or any of
            their respective successors or assigns (i) consolidates with or
            merges into any other person and shall not be the continuing or
            surviving corporation or entity of such consolidation or merger or
            (ii) transfers a material amount of its properties and assets to any
            person in a single transaction or a series of transactions, then,
            and in each such case, Parent will either guaranty the
            indemnification obligations referred to in this Section 7.04 or will
            make or cause to be made proper provision so that the successors and
            assigns of the Company or the Surviving Corporation, as the case may
            be, assume the indemnification obligations described herein for the
            benefit of the Indemnified Parties and have substantially equal
            financial ability as the Company (immediately prior to the Effective
            Time) to satisfy the obligations of the parties pursuant to this
            Section 7.04 as a condition to such merger, consolidation or
            transfer becoming effective.

     (c)    The provisions of this Section 7.04 are (i) intended to be for the
            benefit of, and will be enforceable by, each of the Indemnified
            Parties and (ii) in addition to, and not in substitution for, any
            other rights to indemnification or contribution that any such person
            may have by contract or otherwise.

     (d)    For a period of three years after the Effective Time, Parent shall
            use its best efforts to maintain in effect the directors' and
            officers' liability insurance policies maintained by Company;
            PROVIDED, HOWEVER, that in no event shall Parent be required to
            expend in any one year in excess of 150% of the annual premium
            currently paid by Company for such coverage, which Company hereby
            represents is $250,000, and provided further, that if the premium
            for such coverage exceeds such amount, Parent shall purchase a
            policy with the greatest coverage available for such 150% of the
            annual premium.

SECTION 7.05      NO SHELF REGISTRATION

     Parent shall not be required to amend or maintain the effectiveness of the
Registration Statement for the purpose of permitting resale of the shares of
Parent Common Stock received pursuant hereto by the persons who may be deemed to
be "affiliates" of Company within the meaning of Rule 145 promulgated under the
Securities Act.

<PAGE>

SECTION 7.06      PUBLIC ANNOUNCEMENTS

     The initial press release concerning the Merger shall be a joint press
release and, thereafter, Parent and Company shall consult with each other before
issuing any press release or otherwise making any public statements with respect
to this Agreement or the Merger and shall not issue any such press release or
make any such public statement without the prior written approval of the other,
except to the extent required by applicable Law or the requirements of the rules
and regulations of the NNM, in which case the issuing party shall use all
reasonable efforts to consult with the other party before issuing any such
release or making any such public statement.

SECTION 7.07      NNM LISTING

     Prior to the Effective Time, Parent shall file with the NNM a Notification
Form for Listing of Additional Shares with respect to the Parent Common Stock
issued or issuable in connection with the Merger and shall use all reasonable
efforts to obtain approval from NNM of the listing of such Parent Common Stock
as of the Effective Time, subject to official notice of issuance.

SECTION 7.08      BLUE SKY

     Parent shall use all reasonable efforts to obtain prior to the Effective
Time all necessary permits and approvals required under Blue Sky Laws to permit
the distribution of the shares of Parent Common Stock to be issued in accordance
with the provisions of this Agreement.

SECTION 7.09      EMPLOYEE BENEFIT MATTERS

     Unless Parent consents otherwise in writing, Company shall take all action
necessary to terminate, or cause to terminate, before the Effective Time, any
Company Benefit Plan that is a 401(k) plan or other defined contribution
retirement plan.

SECTION 7.10      REGISTRATION STATEMENT ON FORM S-8.

     On the date of the Effective Time or as soon thereafter as is practicable,
Parent shall file a registration statement on Form S-8 covering the issuance of
Parent Common Stock issuable under the Company Stock Plans.

ARTICLE VIII

                            CONDITIONS TO THE MERGER

SECTION 8.01      CONDITIONS TO THE OBLIGATIONS OF EACH PARTY TO CONSUMMATE
                  THE MERGER


<PAGE>


     The obligations of the parties hereto to consummate the Merger are subject
to the satisfaction or, if permitted by applicable Law, waiver of the following
conditions:

     (a)    the Registration Statement shall have been declared effective by the
            SEC under the Securities Act and no stop order suspending the
            effectiveness of the Registration Statement shall have been issued
            by the SEC and no proceeding for that purpose shall have been
            initiated by the SEC and not concluded or withdrawn;

     (b)    this Agreement and the Merger shall have been duly approved by the
            requisite vote of stockholders of Company in accordance with the
            DGCL;

     (c)    no court of competent jurisdiction shall have issued or entered any
            order, writ, injunction or decree, and no other Governmental Entity
            shall have issued any order, which is then in effect and has the
            effect of making the Merger illegal or otherwise prohibiting its
            consummation;

     (d)    any waiting period (and any extension thereof) applicable to the
            consummation of the Merger under the HSR Act or any other applicable
            competition, merger control or similar Law shall have expired or
            been terminated; and

     (e)    all consents, approvals and authorizations legally required to be
            obtained to consummate the Merger shall have been obtained from all
            Governmental Entities, except where the failure to obtain any such
            consent, approval or authorization could not reasonably be expected
            to result in a Parent Material Adverse Effect or a Company Material
            Adverse Effect.

SECTION 8.02      CONDITIONS TO THE OBLIGATIONS OF COMPANY

     The obligations of Company to consummate the Merger, or to permit the
consummation of the Merger are subject to the satisfaction or, if permitted by
applicable Law, waiver of the following further conditions:

     (a)    each of the representations and warranties of Parent contained in
            this Agreement shall be true, complete and correct in all respects
            (ignoring for this purpose all materiality or Material Adverse
            Effect qualifications in such representations and warranties) both
            when made and on and as of the Effective Time as if made at and as
            of the Effective Time (other than (i) representations and warranties
            which address matters only as of a certain date which shall have
            been true, complete and correct as of such certain date, and (ii)
            failures to be true, complete and correct that do not, in the
            aggregate, constitute a Parent Material Adverse Effect), and Company
            shall have received a certificate of the Chief Executive Officer and
            Chief Financial Officer of Parent to such effect;


<PAGE>


     (b)    Parent shall have performed or complied in all material respects
            with all covenants required by this Agreement to be performed or
            complied with by it on or prior to the Effective Time and Company
            shall have received a certificate of the Chief Executive Officer and
            Chief Financial Officer of Parent to that effect;

     (c)    Wilson Sonsini Goodrich & Rosati, legal counsel to Company, shall
            have issued its opinion, such opinion dated on the date of the
            Closing, addressed to Company, and reasonably satisfactory to it,
            based upon customary representations of Company and Parent and
            customary assumptions, to the effect that the Merger will constitute
            a "reorganization" within the meaning of Section 368(a) of the Code,
            which opinion shall not have been withdrawn or modified in any
            material respect; PROVIDED, HOWEVER, that if such firm does not
            render such opinion, this condition shall nonetheless be deemed
            satisfied if such opinion, dated as of the date of the Closing, is
            rendered to Company by Brobeck, Phleger & Harrison LLP, counsel to
            Parent; and

     (d)    There shall have been no Parent Material Adverse Effect since the
            date of this Agreement.

SECTION 8.03      CONDITIONS TO THE OBLIGATIONS OF PARENT

     The obligations of Parent to consummate the Merger are subject to the
satisfaction or waiver of the following further conditions:

     (a)    each of the representations and warranties of Company contained in
            this Agreement shall be true, complete and correct in all respects
            (ignoring for this purpose all materiality or Material Adverse
            Effect qualifications in such representations and warranties) both
            when made and on and as of the Effective Time as if made at and as
            of the Effective Time (other than (i) representations and warranties
            which address matters only as of a certain date which shall have
            been true, complete and correct as of such certain date, and (ii)
            failures to be true, complete and correct that do not, in the
            aggregate, constitute a Company Material Adverse Effect), and Parent
            shall have received a certificate of the Chief Executive Officer and
            Chief Financial Officer of Company to such effect;

     (b)    Company shall have performed or complied in all material respects
            with all covenants required by this Agreement to be performed or
            complied with by it on or prior to the Effective Time and Parent
            shall have received a certificate of the Chief Executive Officer and
            Chief Financial Officer of Company to that effect;

     (c)    Brobeck, Phleger & Harrison LLP, special counsel to Parent, shall
            have issued its opinion, such opinion dated on the date of the
            Closing, addressed to Parent, and reasonably satisfactory to it,
            based upon customary representations of Company and Parent and
            customary assumptions, to the effect that the Merger will constitute
            a "reorganization" within the meaning of Section 368(a) of the Code,
            which opinion shall not have been withdrawn or modified in any
            material respect; PROVIDED, HOWEVER, that if such firm does not
            render such opinion, this condition shall nonetheless be deemed
            satisfied if such opinion, dated as of the date of Closing, is
            rendered to Parent by Wilson Sonsini Goodrich & Rosati, legal
            counsel to Company;


<PAGE>


     (d)    Parent shall have been advised in writing by PricewaterhouseCoopers
            LLP as of the date upon which the Effective Time is to occur, in a
            form and in substance reasonably acceptable to Parent, that the
            Merger can properly be accounted for as a "pooling of interests"
            business combination in accordance with U.S. GAAP and the accounting
            standards of the SEC; Company shall have been advised in writing by
            KPMG LLP as of the date upon which the Effective Time is to occur
            that such firm concurs with the management of the Company that there
            is no reason why the Merger cannot be treated for financial
            accounting purposes as a "pooling of interests" business combination
            in accordance with U.S. GAAP and the accounting standards of the
            SEC;

     (e)    There shall have been no Company Material Adverse Effect since the
            date of this Agreement;

     (f)    All consents of third parties required pursuant to the terms of any
            Material Contract as a result of the Merger shall have been
            obtained; and

     (g)    At least five of the employees of Company set forth on Schedule
            8.03(g) shall have either (i) entered into employment, proprietary
            invention and non-competition agreements substantially in the form
            of Annex D or (ii) if so permitted as provided on Schedule 8.03(g),
            allowed Parent to assume their respective employment agreement as in
            effect on the date hereof and entered into a non-competition and
            proprietary invention agreement with Parent in substantially the
            form included in Annex D.

ARTICLE IX

                        TERMINATION, AMENDMENT AND WAIVER

SECTION 9.01      TERMINATION

     This Agreement may be terminated and the Merger may be abandoned at any
time prior to the Effective Time, notwithstanding any requisite adoption and
approval of this Agreement, as follows:

     (a)    by mutual written consent duly authorized by the boards of directors
            of each of Parent and Company;

     (b)    by either Parent or Company, if the Effective Time shall not have
            occurred on or before January 31, 2000; PROVIDED, HOWEVER, that the
            right to terminate this Agreement under this Section 9.01(b) shall
            not be available to any party whose material breach of this
            Agreement shall have caused, or resulted in, the failure of the
            Effective Time to occur on or before such date;

     (c)    by either Parent or Company, if any Governmental Order, writ,
            injunction or decree preventing the consummation of the Merger shall
            have been entered by any court of competent jurisdiction and shall
            have become final and nonappealable;


<PAGE>


     (d)    by Parent, if (i) the board of directors of Company withdraws,
            modifies or changes its recommendation of this Agreement or the
            Merger in a manner adverse to Parent or its stockholders, (ii) the
            board of directors of Company shall have recommended to the
            stockholders of Company a Competing Transaction, (iii) the Company
            fails to comply in all material respects with Section 6.04 or
            Section 7.02, (iv) a Competing Transaction shall have been announced
            or otherwise publicly known and the board of directors of Company
            shall have (A) failed to recommend against acceptance of such by its
            stockholders (including by taking no position, or indicating its
            inability to take a position, with respect to the acceptance by its
            stockholders of a Competing Transaction involving a tender offer or
            exchange offer) within 5 business days of delivery of a written
            request from Parent for such action, (B) failed to reconfirm its
            approval and recommendation of this Agreement and the transactions
            contemplated hereby within 5 business days of delivery of a written
            request from Parent for such action or (C) determined that such
            Competing Transaction was a Superior Proposal and to take any of the
            actions allowed by clause (ii) of Section 6.04 (and shall not have,
            prior to Parent's termination of this Agreement pursuant to this
            Section 9.01(d)(iv)(C), (x) reconfirmed its approval and
            recommendation of this Agreement and (y) recommended against
            acceptance of such Superior Proposal by its stockholders), or (v)
            the board of directors of Company resolves to take any of the
            actions described above;

     (e)    by Parent or Company, if this Agreement and the Merger shall fail to
            receive the requisite votes for approval at the Company
            Stockholders' Meeting or any adjournment or postponement thereof;

     (f)    by Parent, upon a breach of any representation, warranty, covenant
            or agreement on the part of Company set forth in this Agreement, or
            if any representation or warranty of Company shall have become
            untrue, incomplete or incorrect, in either case such that the
            conditions set forth in Section 8.03 would not be satisfied (a
            "TERMINATING COMPANY BREACH"); PROVIDED, HOWEVER, that if such
            Terminating Company Breach is curable by Company through the
            exercise of its reasonable efforts within 20 days and for so long as
            Company continues to exercise such reasonable efforts, Parent may
            not terminate this Agreement under this Section 9.01(f); and
            PROVIDED, FURTHER that the preceding proviso shall not in any event
            be deemed to extend any date set forth in paragraph (b) of this
            Section 9.01; or

     (g)    by Company, upon breach of any representation, warranty, covenant or
            agreement on the part of Parent set forth in this Agreement, or if
            any representation or warranty of Parent shall have become untrue,
            incomplete or incorrect, in either case such that the conditions set
            forth in Section 8.02 would not be satisfied (a "TERMINATING PARENT
            BREACH"); PROVIDED, HOWEVER, that if such Terminating Parent Breach
            is curable by Parent through the exercise of its reasonable efforts
            within 20 days and for so long as Parent continues to exercise such
            reasonable efforts, Company may not terminate this Agreement under
            this Section 9.01(g); and PROVIDED, FURTHER that the preceding
            proviso shall not in any event be deemed to extend any date set
            forth in paragraph (b) of this Section 9.01.


<PAGE>


The right of any party hereto to terminate this Agreement pursuant to this
Section 9.01 will remain operative and in full force and effect regardless of
any investigation made by or on behalf of any party hereto, any person
controlling any such party or any of their respective officers, directors,
representatives or agents, whether prior to or after the execution of this
Agreement.

SECTION 9.02      EFFECT OF TERMINATION

     Except as provided in Section 9.05, in the event of termination of this
Agreement pursuant to Section 9.01, this Agreement shall forthwith become void,
there shall be no liability under this Agreement on the part of any party hereto
or any of its affiliates or any of its or their officers or directors, and all
rights and obligations of each party hereto shall cease; PROVIDED, HOWEVER, that
nothing herein shall relieve any party hereto from liability for the willful or
intentional breach of any of its representations and warranties or the willful
or intentional breach of any of its covenants or agreements set forth in this
Agreement. No termination of this Agreement shall affect the obligation of the
parties contained in the Confidentiality Agreements, which shall survive
termination of this Agreement and remain in full force and effect in accordance
with their terms.

SECTION 9.03      AMENDMENT

     This Agreement may be amended by the parties hereto by action taken by or
on behalf of their respective boards of directors at any time prior to the
Effective Time; PROVIDED, HOWEVER, that, after the approval of this Agreement by
the stockholders of Company, no amendment may be made that changes the amount or
type of consideration into which Company common stock will be converted pursuant
to this Agreement. This Agreement may not be amended except by an instrument in
writing signed by the parties hereto.

SECTION 9.04      WAIVER

     At any time prior to the Effective Time, any party hereto may (a) extend
the time for or waive compliance with the performance of any obligation or other
act of any other party hereto, (b) waive any inaccuracy in the representations
and warranties contained herein or in any document delivered pursuant hereto and
(c) waive compliance by the other party with any of the agreements or conditions
contained herein. Any such extension or waiver shall be valid if set forth in an
instrument in writing signed by the party or parties to be bound thereby.

SECTION 9.05      TERMINATION FEE; EXPENSES

     (a)    Except as set forth in this Section 9.05, all Expenses incurred in
            connection with this Agreement and the Merger shall be paid by the
            party incurring such Expenses, whether or not the Merger is
            consummated, except that Parent and Company each shall pay one-half
            of all Expenses (other than attorneys' and accountants' fees and
            expenses) incurred solely for printing, filing and mailing the
            Registration Statement and the Proxy Statement and all SEC and other
            regulatory


<PAGE>


            filing fees incurred in connection with the Registration Statement
            and the Proxy Statement and any fees required to be paid under the
            HSR Act.

     (b)    In the event that (i) Parent shall terminate this Agreement pursuant
            to Section 9.01(d) or (ii) this Agreement shall be terminated
            pursuant to Section 9.01(b) or pursuant to Section 9.01(e) as a
            result of the failure to obtain the requisite approval of the
            Company stockholders and (A) at or prior to such termination, there
            shall exist or have been publicly proposed a Competing Transaction
            with respect to Company and (B) within 12 months after such
            termination, Company shall enter into a definitive agreement with
            respect to any Competing Transaction or any Competing Transaction
            involving Company shall be consummated, then, in the case of (i),
            promptly after such termination, or in the case of (ii), immediately
            before the execution and delivery of such agreement or such
            consummation, Company shall pay to Parent an amount equal to $30
            million (the "TERMINATION FEE").

     (c)    In the event that Parent shall terminate this Agreement pursuant to
            Section 9.01(f), then Company shall promptly reimburse Parent for
            Parent's Expenses, and if, within twelve months of such termination
            of this Agreement, Company shall enter into a definitive agreement
            with respect to any Competing Transaction or any Competing
            Transaction involving Company shall be consummated, then,
            immediately before the execution and delivery of such agreement or
            such consummation, Company shall pay to Parent an amount in cash
            equal to the Termination Fee less the amount of any Expenses of
            Parent previously reimbursed by Company pursuant to this
            Section 9.05(c).

     (d)    Parent and Company agree that the agreements contained in Section
            9.05(b) and 9.05(c) above are an integral part of the transaction
            contemplated by this Agreement and constitute liquidated damages and
            not a penalty. Accordingly, if Company fails to pay to Parent any
            amounts due under Section 9.05(b) or 9.05(c), Company shall pay the
            cash and expenses (including legal fees and expenses) in connection
            with any action, including the filing of any lawsuit of other legal
            action, taken to collect payment, together with interest on such
            amounts at the prime rate of Citibank, N.A. in effect on the date
            such payment was required to be made.

ARTICLE X

                               GENERAL PROVISIONS

SECTION 10.01     NON-SURVIVAL OF REPRESENTATIONS AND WARRANTIES

     The representations and warranties in this Agreement shall terminate at the
Effective Time or upon the termination of this Agreement pursuant to Section
9.01, as the case may be. This Section 10.01 shall not limit any covenant or
agreement of the parties which by its terms contemplates performance after the
Effective Time.


<PAGE>


SECTION 10.02     NOTICES

     All notices, requests, claims, demands and other communications hereunder
shall be in writing and shall be given (and shall be deemed to have been duly
given upon receipt) by delivery in person, by telecopy or facsimile, by
registered or certified mail (postage prepaid, return receipt requested) or by a
nationally recognized courier service to the respective parties at the following
addresses (or at such other address for a party as shall be specified in a
notice given in accordance with this Section 10.02):

     (a)    if to Company:

              NetGravity, Inc.
              1900 South Norfolk Street, Suite 150
              San Mateo, CA 94403
              Attention:  Stephen Recht
              Telecopier:  (650) 425-6070

              with a copy to:

              Wilson Sonsini Goodrich & Rosati Professional Corporation
              650 Page Mill Road
              Palo Alto, CA 94304
              Attention:  Larry W. Sonsini
              Telecopier:  (650) 493-6811

     (b)    if to Parent or Merger Sub:

              DoubleClick Inc.
              41 Madison Avenue, 32nd Floor
              New York, NY  10010
              Attention:  Elizabeth Wang, General Counsel
              Telecopier:  (212) 889-0029

              with a copy to:

              Brobeck, Phleger & Harrison LLP
              One Market, Spear Street Tower
              San Francisco, CA 94105
              Attention:  Steve L. Camahort
              Telecopier:  (415) 442-1010


SECTION 10.03     SEVERABILITY


<PAGE>


     If any term or other provision of this Agreement is invalid, illegal or
incapable of being enforced by any rule of Law or public policy, all other
conditions and provisions of this Agreement shall nevertheless remain in full
force and effect so long as the economic or legal substance of the Merger is not
affected in any manner materially adverse to any party. Upon such determination
that any term or other provision is invalid, illegal or incapable of being
enforced, the parties hereto shall negotiate in good faith to modify this
Agreement so as to effect the original intent of the parties as closely as
possible in a mutually acceptable manner to the fullest extent permitted by
applicable Law in order that the Merger may be consummated as originally
contemplated to the fullest extent possible.

SECTION 10.04     ASSIGNMENT; BINDING EFFECT; BENEFIT

     Neither this Agreement nor any of the rights, interests or obligations
hereunder shall be assigned by any of the parties hereto (whether by operation
of Law or otherwise) without the prior written consent of the other parties
hereto. Subject to the preceding sentence, this Agreement shall be binding upon
and shall inure to the benefit of the parties hereto and their respective
successors and permitted assigns. Notwithstanding anything contained in this
Agreement to the contrary, other than Section 7.04, nothing in this Agreement,
expressed or implied, is intended to confer on any person other than the parties
hereto or their respective successors and permitted assigns any rights or
remedies under or by reason of this Agreement.

SECTION 10.05     INCORPORATION OF EXHIBITS

     The Parent Disclosure Schedule, the Company Disclosure Schedule and all
Exhibits attached hereto and referred to herein are hereby incorporated herein
and made a part of this Agreement for all purposes as if fully set forth herein.

SECTION 10.06     GOVERNING LAW

     THIS AGREEMENT SHALL BE GOVERNED BY, AND CONSTRUED AND ENFORCED IN
ACCORDANCE WITH, THE LAWS OF THE STATE OF DELAWARE OTHER THAN CONFLICT OF LAWS
PRINCIPLES THEREOF DIRECTING THE APPLICATION OF ANY LAW OTHER THAN THAT OF
DELAWARE. COURTS WITHIN THE STATE OF DELAWARE WILL HAVE JURISDICTION OVER ALL
DISPUTES BETWEEN THE PARTIES HERETO ARISING OUT OF OR RELATING TO THIS AGREEMENT
AND THE AGREEMENTS, INSTRUMENTS AND DOCUMENTS CONTEMPLATED HEREBY. THE PARTIES
HEREBY CONSENT TO AND AGREE TO SUBMIT TO THE JURISDICTION OF SUCH COURTS. EACH
OF THE PARTIES HERETO WAIVES, AND AGREES NOT TO ASSERT IN ANY SUCH DISPUTE, TO
THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY CLAIM THAT (I) SUCH PARTY IS
NOT PERSONALLY SUBJECT TO THE JURISDICTION OF SUCH COURTS, (II) SUCH PARTY AND
SUCH PARTY'S PROPERTY IS IMMUNE FROM ANY LEGAL PROCESS ISSUED BY SUCH COURTS OR
(III) ANY LITIGATION COMMENCED IN SUCH


<PAGE>


COURTS IS BROUGHT IN AN INCONVENIENT FORUM.

SECTION 10.07     WAIVER OF JURY TRIAL

     EACH PARTY HERETO HEREBY IRREVOCABLY WAIVES ALL RIGHT TO TRIAL BY JURY IN
ANY PROCEEDING (WHETHER BASED ON CONTRACT, TORT OR OTHERWISE) ARISING OUT OF OR
RELATING TO THIS AGREEMENT OR ANY TRANSACTION OR AGREEMENT CONTEMPLATED HEREBY
OR THE ACTIONS OF ANY PARTY HERETO IN THE NEGOTIATION, ADMINISTRATION,
PERFORMANCE OR ENFORCEMENT HEREOF.

SECTION 10.08     HEADINGS; INTERPRETATION

     The descriptive headings contained in this Agreement are included for
convenience of reference only and shall not affect in any way the meaning or
interpretation of this Agreement. The parties have participated jointly in the
negotiation and drafting of this Agreement. In the event an ambiguity or
question of intent or interpretation arises, this Agreement shall be construed
as if drafted jointly by the parties, and no presumption or burden of proof
shall arise favoring or disfavoring any party by virtue of the authorship of any
provisions of this Agreement.

SECTION 10.09     COUNTERPARTS

     This Agreement may be executed and delivered (including by facsimile
transmission) in one or more counterparts, and by the different parties hereto
in separate counterparts, each of which when executed and delivered shall be
deemed to be an original but all of which taken together shall constitute one
and the same agreement.

SECTION 10.10     ENTIRE AGREEMENT

     This Agreement (including the Exhibits, the Parent Disclosure Schedule and
the Company Disclosure Schedule) and the Confidentiality Agreement constitute
the entire agreement among the parties with respect to the subject matter hereof
and supersede all prior agreements and understandings among the parties with
respect thereto. No addition to or modification of any provision of this
Agreement shall be binding upon any party hereto unless made in writing and
signed by all parties hereto.



<PAGE>


     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed as of the date first written above by their respective officers
thereunto duly authorized.

                                DOUBLECLICK INC.


                                   By: /s/ KEVIN P. RYAN
                                      ------------------------------------------
                                   Name: Kevin P. Ryan
                                   Title: President and Chief Operating Officer



                                    NETGRAVITY, INC.


                                    By: /s/ ERIC W. SPIVEY
                                      ------------------------------------------
                                    Name: Eric W. Spivey
                                    Title: President and Chief Executive Officer


                                     NJ MERGER CORPORATION


                                     By: /s/ KEVIN P. RYAN
                                      ------------------------------------------
                                     Name: Kevin P. Ryan
                                     Title: President

<PAGE>


                                                                    EXHIBIT 10.1

                          FORM OF STOCKHOLDER AGREEMENT

     This STOCKHOLDER AGREEMENT (this "Agreement") is made and entered into as
of July 12, 1999 between DoubleClick Inc., a Delaware corporation ("Parent"),
and the undersigned stockholder ("Stockholder") of NetGravity, Inc., a Delaware
corporation ("Company"). Capitalized terms used and not otherwise defined herein
shall have the respective meanings set forth in the Merger Agreement described
below.

                                    RECITALS

     WHEREAS, pursuant to an Agreement and Plan of Merger and Reorganization
dated as of July 12, 1999 by and among Parent, NJ Merger Corporation, a Delaware
corporation and a wholly owned subsidiary of Parent ("Merger Sub") and Company
(such agreement as it may be amended is hereinafter referred to as the "Merger
Agreement") Parent has agreed to acquire the outstanding securities of Company
pursuant to a statutory merger of Merger Sub with and into Company (the
"Merger") in which each outstanding share of capital stock of Company (the
"Company Capital Stock") will be converted into shares of common stock of Parent
(the "Parent Shares") at the exchange rate set forth in the Merger Agreement
(the "Transaction");

     WHEREAS, in order to induce Parent to enter into the Merger Agreement and
consummate the Transaction, Company has agreed to use its reasonable best
efforts to cause each stockholder of Company who is an affiliate of Company to
execute and deliver to Parent a Stockholder Agreement upon the terms set forth
herein; and

     WHEREAS, Stockholder is the registered and beneficial owner of such number
of shares of the outstanding capital stock of Company as is indicated on the
signature page of this Agreement (the "Shares").

     NOW, THEREFORE, the parties agree as follows:

     1. SHARES.

     1.1 OWNERSHIP OF SHARES. Stockholder is the beneficial owner of (I.E., has
sole or shared voting or investment power with respect to) the Shares. The
Shares constitute Stockholder's entire interest in the outstanding capital stock
and voting securities of Company. The Shares are free and clear of any liens,
claims, options, charges or other encumbrances. Stockholder's principal
residence or place of business is accurately set forth on the signature page
hereto. As used herein, the term "Expiration Date" shall mean the earlier to
occur of (i) the Effective Time or (ii) termination of the Merger Agreement in
accordance with the terms thereof.


<PAGE>


     1.2 NEW SHARES. Stockholder agrees that any shares of capital stock or
voting securities of Company that Stockholder purchases or with respect to which
Stockholder otherwise acquires beneficial ownership after the date of this
Agreement and prior to the Expiration Date ("New Shares") shall be subject to
the terms and conditions of this Agreement to the same extent as if they
constituted Shares for so long as they are held by Stockholder.

     2. AGREEMENT TO VOTE SHARES. Prior to the Expiration Date, at every meeting
of the stockholders of Company at which any of the following is considered or
voted upon, and at every adjournment thereof, and on every action or approval by
written resolution of the stockholders of Company with respect to any of the
following, Stockholder shall vote the Shares and any New Shares, in each case as
to which Stockholder then has voting control, in favor of approval and adoption
of the Merger Agreement and of the Transaction.

     3. IRREVOCABLE PROXY. Stockholder hereby agrees to timely deliver to Parent
a duly executed proxy in the form attached hereto as Exhibit I (the "Proxy"),
such Proxy to cover the Shares and all New Shares in respect of which
Stockholder is entitled to vote at each meeting of the stockholders of Company
and held by Stockholder as of the record date for such meeting (including,
without limitation, each written consent in lieu of a meeting) solely for
purposes of voting such shares in favor of approval and adoption of the Merger
Agreement; PROVIDED, THAT, such proxy shall only survive for so long as the
Merger Agreement is in effect. In the event that Stockholder is unable to
provide any such Proxy in a timely manner, Stockholder hereby grants Parent a
power of attorney to execute and deliver such Proxy for and on behalf of
Stockholder, such power of attorney, which being coupled with an interest, shall
survive any death, disability, bankruptcy, or any other such impediment of
Stockholder. Upon the execution of this Agreement by Stockholder, Stockholder
hereby revokes any and all prior proxies or powers of attorney given by
Stockholder with respect to the Shares and agrees not to grant any subsequent
proxies or powers of attorney with respect to the Shares until after the
Expiration Date.

     4. REPRESENTATIONS, WARRANTIES AND COVENANTS OF STOCKHOLDER. Stockholder
hereby represents, warrants and covenants to Parent as follows:

     (a) Stockholder has full power and legal capacity to execute and deliver
this Agreement, to perform its obligations hereunder and to consummate the
transactions contemplated hereby. This Agreement has been duly and validly
executed and delivered by Stockholder and constitutes the valid and binding
obligation of Stockholder, enforceable against Stockholder in accordance with
its terms, except as may be limited by (i) the effect of bankruptcy, insolvency,
conservatorship, arrangement, moratorium or other laws affecting or relating to
the rights of creditors generally, or (ii) the rules governing the availability
of specific performance, injunctive relief or other equitable remedies and
general principles of equity, regardless of whether considered in a proceeding
in equity or at law. Except as may be limited by (i) the effect of bankruptcy,
insolvency, conservatorship, arrangement, moratorium or other laws affecting or
relating to the rights of creditors generally, or (ii) the rules governing the
availability of specific performance, injunctive relief or other equitable
remedies and general principles of equity, regardless of whether considered in a
proceeding in equity or at law, the execution and delivery of this Agreement by
Stockholder does not, and the performance of


<PAGE>


Stockholder's obligations hereunder will not, result in any breach of or
constitute a default (or an event that with notice or lapse of time or both
would become a default) under, or give to others any right to terminate, amend,
accelerate or cancel any right or obligation under, or result in the creation of
any lien or encumbrance on any Shares or New Shares pursuant to, any note, bond,
mortgage, indenture, contract, agreement, lease, license, permit, franchise or
other instrument or obligation to which Stockholder is a party or by which
Stockholder or the Shares or New Shares are or will be bound or affected.

     (b) Except to the extent otherwise permitted under Section 6.04 of the
Merger Agreement, until the Expiration Date, Stockholder will not (and will use
Stockholder's reasonable best efforts to cause its affiliates, officers,
directors and employees and any investment banker, attorney, accountant or other
agent retained by Stockholder, not to: (i) initiate or solicit, directly or
indirectly, any proposal, plan or offer to acquire all or any material part of
the business or properties or capital stock of Company, whether by merger,
purchase of assets, tender offer or otherwise, or to liquidate Company or
otherwise distribute to the stockholders of Company all or any substantial part
of the business, properties or capital stock of Company (each, an "Acquisition
Proposal"); (ii) initiate, directly or indirectly, any contact with any person
in an effort to or with a view towards soliciting any Acquisition Proposal;
(iii) furnish information concerning Company's business, properties or assets to
any corporation, partnership, person or other entity or group (other than
Parent, or any associate, agent or representative of Parent) under any
circumstances that could reasonably be expected to relate to an actual or
potential Acquisition Proposal; or (iv) negotiate or enter into discussions or
an agreement, directly or indirectly, with any entity or group with respect of
any potential Acquisition Proposal. In the event Stockholder shall receive or
become aware of any Acquisition Proposal subsequent to the date hereof,
Stockholder shall promptly inform Parent as to any such matter and the details
thereof to the extent possible without breaching any other agreement to which
such Stockholder is a party or violating its fiduciary duties.

     (c) Stockholder understands and agrees that if Stockholder attempts to vote
or provide any other person with the authority to vote any of the Shares held by
Stockholder as of the record date for any meeting at which such Shares are to be
voted other than in compliance with this Agreement, Company shall not, and
Stockholder hereby unconditionally and irrevocably instructs Company to not
record such vote unless and until Stockholder shall have complied with the terms
of this Agreement.

     5. NO LIMITATION ON DISCRETION AS DIRECTOR. If the Stockholder is a natural
person and is a member of the board of directors of Company, then this Agreement
will apply to the exercise by Stockholder in his individual capacity of rights
attaching to ownership of the Shares, and nothing herein shall be deemed to
apply to, or to limit in any manner the discretion of Stockholder with respect
to, any action which may be taken or omitted by him acting in his fiduciary
capacity as a director of Company.

     6. ADDITIONAL DOCUMENTS. Stockholder hereby covenants and agrees to execute
and deliver any additional documents necessary or desirable, in the reasonable
opinion of Parent, to carry out the purpose and intent of this Agreement.


<PAGE>


     7. CONSENT AND WAIVER. Stockholder hereby gives any consents or waivers
that are reasonably required for the consummation of the Transaction under the
terms of any agreement to which Stockholder is a party or pursuant to any rights
Stockholder may have.

     8. TERMINATION. This Agreement and the Proxy delivered in connection
herewith shall terminate and shall have no further force or effect as of the
Expiration Date.

     9. CONFIDENTIALITY. Stockholder agrees (i) to hold any information
regarding this Agreement and the Transaction in strict confidence, and (ii) not
to divulge any such information to any third person, except to the extent any of
the same is hereafter publicly disclosed by Parent.

     10. MISCELLANEOUS.

     10.1 SEVERABILITY. If any term, provision, covenant or restriction of this
Agreement is held by a court of competent jurisdiction to be invalid, void or
unenforceable, then the remainder of the terms, provisions, covenants and
restrictions of this Agreement shall remain in full force and effect and shall
in no way be affected, impaired or invalidated.

     10.2 BINDING EFFECT AND ASSIGNMENT. This Agreement and all of the
provisions hereof shall be binding upon and inure to the benefit of the parties
hereto and their respective successors and permitted assigns, but, except as
otherwise specifically provided herein, neither this Agreement nor any of the
rights, interests or obligations of the parties hereto may be assigned by either
of the parties without the prior written consent of the other. This Agreement is
intended to bind Stockholder solely as a securityholder of Company only with
respect to the specific matters set forth herein.

     10.3 AMENDMENT AND MODIFICATION. This Agreement may not be modified,
amended, altered or supplemented except by the execution and delivery of a
written agreement executed by the parties hereto.

     10.4 SPECIFIC PERFORMANCE; INJUNCTIVE RELIEF. The parties hereto
acknowledge that Parent will be irreparably harmed and that there will be no
adequate remedy at law for a violation of any of the covenants or agreements of
Stockholder set forth herein. Therefore, it is agreed that, in addition to any
other remedies that may be available to Parent upon any such violation, Parent
shall have the right to enforce such covenants and agreements by specific
performance, injunctive relief or by any other means available to Parent at law
or in equity and Stockholder hereby waives any and all defenses which could
exist in its favor in connection with such enforcement and waives any
requirement for the security or posting of any bond in connection with such
enforcement.

     10.5 NOTICES. All notices, requests, demands or other communications that
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 if delivered by hand or
mailed by registered or certified mail, postage prepaid, or sent by facsimile
transmission, as follows:

     (a) If to Stockholder, at the address set forth below Stockholder's
signature at


<PAGE>


the end hereof.

     (b) if to Parent, to:

                  DoubleClick Inc.
                  41 Madison Avenue, 32nd Floor
                  New York, NY 10010
                  Attention:        Elizabeth Wang, General Counsel
                  Facsimile No:  (212) 889-0029

                  with a copy to:

                  Brobeck, Phleger & Harrison LLP
                  Spear Street Tower
                  One Market
                  San Francisco, CA  94105
                  Attention:        Steve L. Camahort
                  Facsimile No.: (415) 442-1010

or to such other address as any party hereto or any Indemnified Person may
designate for itself by notice given as herein provided.

     10.6 GOVERNING LAW. This Agreement shall be governed by, construed and
enforced in accordance with the internal laws of the State of Delaware without
giving effect to the principles of conflicts of law thereof.

     10.7 ENTIRE AGREEMENT. This Agreement and the Proxy contain the entire
understanding of the parties in respect of the subject matter hereof, and
supersede all prior negotiations and understandings between the parties with
respect to such subject matter.

     10.8 COUNTERPART. This Agreement may be executed in several counterparts,
each of which shall be an original, but all of which together shall constitute
one and the same agreement.

     10.9 EFFECT OF HEADINGS. The section headings herein are for convenience
only and shall not affect the construction or interpretation of this Agreement.


<PAGE>


     IN WITNESS WHEREOF, the parties have caused this Stockholder Agreement to
be executed as of the date first above written.

DOUBLECLICK INC.                            STOCKHOLDER



By:
   ---------------------------------        ------------------------------------
Name:                                       (Signature)
     -------------------------------
Title:
      ------------------------------

                                            ------------------------------------
                                            (Signature of Spouse)


                                            ------------------------------------
                                            (Print Name of Stockholder)


                                            ------------------------------------
                                            (Print Street Address)


                                            ------------------------------------
                                            (Print City, State and Zip)


                                            ------------------------------------
                                            (Print Telephone Number)


                                            ------------------------------------
                                            (Social Security or Tax I.D. Number)

Total Number of Shares of Company Capital Stock owned on the date hereof:
                                                                         -------
Common Stock:
             -----------------------------------
State of Residence:
                   -----------------------------

                     SIGNATURE PAGE TO STOCKHOLDER AGREEMENT


<PAGE>


                                                                       EXHIBIT I


                                IRREVOCABLE PROXY

                                TO VOTE STOCK OF

                                NETGRAVITY, INC.



     The undersigned stockholder of NetGravity, Inc., a Delaware corporation
("Company"), hereby irrevocably (to the full extent permitted by the Delaware
General Corporation Law) appoints the members of the Board of Directors of
DoubleClick Inc., a Delaware corporation ("Parent"), and each of them, or any
other designee of Parent, as the sole and exclusive attorneys and proxies of the
undersigned, with full power of substitution and resubstitution, to vote and
exercise all voting and related rights (to the full extent that the undersigned
is entitled to do so) with respect to all of the shares of capital stock of
Company that now are or hereafter may be beneficially owned by the undersigned,
and any and all other shares or securities of Company issued or issuable in
respect thereof on or after the date hereof (collectively, the "Shares") in
accordance with the terms of this Irrevocable Proxy. The proxy granted hereunder
shall be solely for the purpose of voting the Shares in favor of approval and
adoption of the Merger Agreement; PROVIDED, THAT, such proxy shall only survive
for so long as the Merger Agreement is in effect. The Shares beneficially owned
by the undersigned stockholder of Company as of the date of this Irrevocable
Proxy are listed on the final page of this Irrevocable Proxy. Upon the
undersigned's execution of this Irrevocable Proxy, any and all prior proxies
given by the undersigned with respect to any Shares are hereby revoked and the
undersigned agrees not to grant any subsequent proxies with respect to the
Shares until after the Expiration Date (as defined below).

     This Irrevocable Proxy is irrevocable (to the extent provided in the
Delaware General Corporation Law), is coupled with an interest, including, but
not limited to, that certain Company Affiliate Agreement dated as of even date
herewith by and among Parent, and the undersigned, and is granted in
consideration of Parent entering into that certain Agreement and Plan of Merger
and Reorganization (the "Merger Agreement") by and among Parent and NJ Merger
Corporation, a Delaware corporation and a wholly owned subsidiary of Parent
("Merger Sub"), and Company which Merger Agreement provides for the merger of
Merger Sub with and into Company (the "Merger"). As used herein, the term
"Expiration Date" shall mean the earlier to occur of (i) such date and time as
the Merger shall become effective in accordance with the terms and provisions of
the Merger Agreement, and (ii) the date of termination of the Merger Agreement.

     The attorneys and proxies named above, and each of them are hereby
authorized and empowered by the undersigned, at any time prior to the Expiration
Date, to act as the


<PAGE>


undersigned's attorney and proxy to vote the Shares, and to exercise all voting
and other rights of the undersigned with respect to the Shares (including,
without limitation, the power to execute and deliver written consents pursuant
to the Delaware General Corporation Law), at every annual, special or adjourned
meeting of the stockholders of Company and in every written consent in lieu of
such meeting in favor of approval and adoption of the Merger Agreement and of
the transaction contemplated thereby.

     The attorneys and proxies named above may not exercise this Irrevocable
Proxy on any other matter except as provided above. The undersigned stockholder
may vote the Shares on all other matters.

     All authority herein conferred shall survive the death or incapacity of the
undersigned and any obligation of the undersigned hereunder shall be binding
upon the heirs, personal representatives, successors and assigns of the
undersigned.

     This Irrevocable Proxy is coupled with an interest as aforesaid and is
irrevocable.

Dated:  July 12, 1999
                                           -------------------------------------
                                           (Signature of Stockholder)


                                           -------------------------------------
                                           (Print Name of Stockholder)


                                           Shares beneficially owned:


                                                 shares of Company Common Stock
                                           ------

<PAGE>


                                                                    EXHIBIT 99.1

                                  PRESS RELEASE

DOUBLECLICK INC. AND NETGRAVITY INC. TO MERGE

THE COMBINED COMPANY WILL REPRESENT 27 OF THE TOP 50 U.S. WEB PUBLISHERS
NEW YORK, NY - JULY 13, 1999 - DoubleClick Inc. (Nasdaq: DCLK) and NetGravity
Inc. (Nasdaq: NETG) announced today that the companies have signed a definitive
merger agreement in a transaction valued at $530MM. The stock-for-stock
transaction builds on both companies' goals to provide the broadest possible
infrastructure for ad management, data solutions and media sales for Internet
publishers, advertisers and merchants.

DoubleClick is the industry leader in providing comprehensive global Internet
advertising solutions for marketers and Web publishers. NetGravity is the
industry leader in interactive online advertising and direct marketing software
solutions.

Under the terms of the merger agreement between DoubleClick and NetGravity,
DoubleClick will issue 0.28 shares of DoubleClick common stock for each share of
NetGravity common stock. Based on the July 12,1999 closing prices, the exchange
ratio represents a per share price of $26.32, a 26% premium over NetGravity's 30
day average stock price. The transaction, which will be accounted for as a
pooling of interests, is subject to certain conditions, regulatory approval and
NetGravity stockholder approval. The transaction is expected to be completed in
early Q4 1999.

In separate releases, DoubleClick and NetGravity today each announced second
quarter 1999 revenue results.

Commenting on the merger, Kevin O'Connor, CEO of DoubleClick, said "Our goal has
been to build the broadest possible infrastructure for Internet advertising.
Both companies have relationships with most major Web publishers and advertisers
domestically and internationally. NetGravity's strengths combined with
DoubleClick's technology infrastructure and Abacus Direct's data will create a
company uniquely positioned to be the overall leader in targeted advertising"

"NetGravity continues to build tremendous momentum, and we bring several unique
strengths to the combined company, including our people, our consulting
services, our software solution and a very strong West Coast and international
presence," said Eric W. Spivey, president and CEO of NetGravity. "We have been
successful in forming relationships with important customers and partners
worldwide, including IBM, Time Inc. New Media, @Home Network, E*TRADE Group, The
Financial Times Group, Nikkei (leading business daily in Japan) News Interactive
and STAR Media. We believe this combination with DoubleClick is very powerful."

Goldman, Sachs & Co. acted as financial adviser to DoubleClick. BancBoston
Robertson Stephens acted as financial adviser to NetGravity.

ABOUT DOUBLECLICK INC.

DoubleClick Inc. (www.doubleclick.net) is a leading provider of comprehensive
global Internet advertising solutions for marketers and Web publishers.
Combining technology and media expertise, DoubleClick centralizes planning,
execution, control, tracking and reporting for online media campaigns.
DoubleClick Inc. has Global headquarters in New York City and maintains offices
in Atlanta, Boston, Chicago, Detroit, Dallas, Dublin, Los Angeles, San
Francisco, San Mateo, Seattle, Amsterdam, Barcelona, Copenhagen, Dusseldorf,
Hamburg, Helsinki, London, Madrid, Milan, Montreal, Munich, Oslo, Paris,
Stockholm,


<PAGE>


Sydney, Tokyo and Toronto.

ABOUT NETGRAVITY INC.

NetGravity is a leading provider of mission-critical online advertising and
direct marketing solutions. NetGravity delivers a range of comprehensive
software and service solutions to reliably manage, target and analyze online
campaigns. The company's worldwide customer base numbers more than 360,
including many of the leading e-commerce sites, advertising agencies and web
publishers. NetGravity was founded in 1995 and has headquarters in San Mateo,
Calif. NetGravity's common stock trades on the Nasdaq Stock Market under the
symbol NETG. For more information, please call (650) 425-6000 or visit the
company's Web site at www.netgravity.com.

This news release contains statements of a forward-looking nature relating to
the future events or the future financial results of DoubleClick and NetGravity.
Investors are cautioned that such statements are only predictions and that
actual events or results may differ materially. In evaluating such statements,
investors should specifically consider the various factors which could cause
actual events or results to differ materially from those indicated from such
forward-looking statements, including the matters set forth in DoubleClick's and
NetGravity's reports and documents filed from time to time with the Securities
and Exchange Commission.


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