Document:

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                                                                    EXHIBIT 10.1

                            ANNUNCIO SOFTWARE, INC.

                           INDEMNIFICATION AGREEMENT

     This Indemnification Agreement ("Agreement") is made as of ________ by and
between Annuncio Software, Inc., a Delaware corporation (which, together with
the California corporation which was its predecessor, is known herein as the
"Company"), and ______________________ ("Indemnitee").

     WHEREAS, the Company and Indemnitee recognize the increasing difficulty in
obtaining directors' and officers' liability insurance, the significant
increases in the cost of such insurance and the general reductions in the
coverage of such insurance;

     WHEREAS, the Company and Indemnitee further recognize the substantial
increase in corporate litigation in general, subjecting officers and directors
to expensive litigation risks at the same time as the coverage of liability
insurance has been limited;

     WHEREAS, Indemnitee does not regard the current protection available as
adequate under the present circumstances, and Indemnitee and other officers and
directors of the Company may not be willing to continue to serve as officers and
directors without additional protection; and

     WHEREAS, the Company desires to attract and retain the services of highly
qualified individuals, such as Indemnitee, to serve as officers and directors of
the Company and to indemnify its officers and directors so as to provide them
with the maximum protection permitted by law.

     NOW, THEREFORE, the Company and Indemnitee hereby agree as follows:

     1.   Indemnification.
          ---------------

          (a)  Third Party Proceedings.   The Company shall indemnify Indemnitee
               -----------------------
if Indemnitee is or was a party or is threatened to be made a party to any
threatened, pending or completed action or proceeding, whether civil, criminal,
administrative or investigative (other than an action by or in the right of the
Company) by reason of the fact that Indemnitee is or was a director, officer,
employee or agent of the Company, or any subsidiary of the Company, by reason of
any action or inaction on the part of Indemnitee while an officer or director or
by reason of the fact that Indemnitee is or was serving at the request of the
Company as a director, officer, employee or agent of another corporation,
partnership, joint venture, trust or other enterprise, against expenses
(including attorneys' fees), judgments, fines and amounts paid in settlement (if
such settlement is approved in advance by the Company, which approval shall not
be unreasonably withheld) actually and reasonably incurred by Indemnitee in
connection with such action or proceeding if Indemnitee acted in good faith and
in a manner Indemnitee reasonably believed to be in or not opposed to the best
interests of the Company, and, with respect to any criminal action or
proceeding, had no reasonable cause to believe Indemnitee's conduct was
unlawful. The termination of any action, suit or
<PAGE>

proceeding by judgment, order, settlement, conviction, or upon a plea of nolo
contendere or its equivalent, shall not, of itself, create a presumption that
(i) Indemnitee did not act in good faith, (ii) Indemnitee did not act in a
manner which Indemnitee reasonably believed to be in or not opposed to the best
interests of the Company, or (iii) with respect to any criminal action or
proceeding, Indemnitee had no reasonable cause to believe that Indemnitee's
conduct was unlawful.

          (b)  Proceedings By or in the Right of the Company.  The Company shall
               ---------------------------------------------
indemnify Indemnitee if Indemnitee was or is a party or is threatened to be made
a party to any threatened, pending or completed action or suit by or in the
right of the Company or any subsidiary of the Company to procure a judgment in
its favor by reason of the fact that Indemnitee is or was a director, officer,
employee or agent of the Company, or any subsidiary of the Company, by reason of
any action or inaction on the part of Indemnitee while an officer or director or
by reason of the fact that Indemnitee is or was serving at the request of the
Company as a director, officer, employee or agent of another corporation,
partnership, joint venture, trust or other enterprise, against expenses
(including attorneys' fees) and, to the fullest extent permitted by law, amounts
paid in settlement, in each case to the extent actually and reasonably incurred
by Indemnitee in connection with the defense or settlement of such action or
proceeding if Indemnitee acted in good faith and in a manner Indemnitee
reasonably believed to be in or not opposed to the best interests of the Company
and its stockholders, except that no indemnification shall be made in respect of
any claim, issue or matter as to which Indemnitee shall have been adjudged to be
liable to the Company in the performance of Indemnitee's duty to the Company and
its stockholders unless and only to the extent that the court in which such
action or suit is or was pending shall determine upon application that, in view
of all the circumstances of the case, Indemnitee is fairly and reasonably
entitled to indemnity for such expenses and then only to the extent that the
court shall determine.

     2.   Agreement to Serve.   In consideration of the protection afforded by
          ------------------
this Agreement, if Indemnitee is a director of the Company, he agrees to serve
at least for the balance of the current term as a director and not to resign
voluntarily during such period without the written consent of a majority of the
Board of Directors. If Indemnitee is an officer of the Company not serving under
an employment contract, he agrees to serve in such capacity at least for the
balance of the current fiscal year of the Company and not to resign voluntarily
during such period without the written consent of a majority of the Board of
Directors. Following the applicable period set forth above, Indemnitee agrees to
continue to serve in such capacity at the will of the Company (or under separate
agreement, if such agreement exists) so long as he is duly appointed or elected
and qualified in accordance with the applicable provisions of the Bylaws of the
Company or any subsidiary of the Company or until such time as he tenders his
resignation in writing. Nothing contained in this Agreement is intended to or
shall create in Indemnitee any right to continued employment.

     3.   Expenses; Indemnification Procedure.
          -----------------------------------

          (a)  Advancement of Expenses.   The Company shall advance all expenses
               -----------------------
incurred by Indemnitee in connection with the investigation, defense, settlement
or appeal of any civil or criminal action or proceeding referenced in Section
1(a) or (b) hereof (but not amounts actually paid in settlement of any such
action or proceeding).  Indemnitee hereby undertakes to repay such expenses
advanced only if, and to the extent that, it shall ultimately be determined that
Indemnitee is not entitled to be indemnified by the Company as authorized
hereby.  The advances to be made
<PAGE>

hereunder shall be paid by the Company to Indemnitee within twenty (20) days
following delivery of a written request therefor by Indemnitee to the Company.

          (b)  Notice/Cooperation by Indemnitee.   Indemnitee shall, as a
               --------------------------------
condition precedent to his right to be indemnified under this Agreement, give
the Company notice in writing as soon as practicable of any claim made against
Indemnitee for which indemnification will or could be sought under this
Agreement. Notice to the Company shall be directed to the Chief Executive
Officer of the Company at the address shown on the signature page of this
Agreement (or such other address as the Company shall designate in writing to
Indemnitee). Notice shall be deemed received three business days after the date
postmarked if sent by domestic certified or registered mail, properly addressed;
otherwise notice shall be deemed received when such notice shall actually be
received by the Company. In addition, Indemnitee shall give the Company such
information and cooperation as it may reasonably require and as shall be within
Indemnitee's power.

          (c)  Procedure.   Any indemnification provided for in Section 1 shall
               ---------
be made no later than forty-five (45) days after receipt of the written request
of Indemnitee. If a claim under this Agreement, under any statute, or under any
provision of the Company's Certificate of Incorporation or Bylaws providing for
indemnification, is not paid in full by the Company within forty-five (45) days
after a written request for payment thereof has first been received by the
Company, Indemnitee may, but need not, at any time thereafter submit his claim
to arbitration as described in Section 14 to recover the unpaid amount of the
claim and, subject to Section 15 of this Agreement, Indemnitee shall also be
entitled to be paid for the expenses (including attorneys' fees) of bringing
such claim. It shall be a defense to any such action (other than a claim brought
for expenses incurred in connection with any action or proceeding in advance of
its final disposition) that Indemnitee has not met the standards of conduct
which make it permissible under applicable law for the Company to indemnify
Indemnitee for the amount claimed, but the burden of proving such defense shall
be on the Company, and Indemnitee shall be entitled to receive interim payments
of expenses pursuant to Subsection 3(a) unless and until such defense may be
finally adjudicated by court order or judgment from which no further right of
appeal exists or an arbitration panel as described in Section 14. It is the
parties' intention that if the Company contests Indemnitee's right to
indemnification, the question of Indemnitee's right to indemnification shall be
for the court or arbitration panel to decide, and neither the failure of the
Company (including its Board of Directors, any committee or subgroup of the
Board of Directors, independent legal counsel, or its stockholders) to have made
a determination that indemnification of Indemnitee is proper in the
circumstances because Indemnitee has met the applicable standard of conduct
required by applicable law, nor an actual determination by the Company
(including its Board of Directors, any committee or subgroup of the Board of
Directors, independent legal counsel, or its stockholders) that Indemnitee has
not met such applicable standard of conduct, shall create a presumption that
Indemnitee has or has not met the applicable standard of conduct.

          (d) Notice to Insurers.   If, at the time of the receipt of a notice
              ------------------
of a claim pursuant to Section 3(b) hereof, the Company has director and officer
liability insurance in effect, the Company shall give prompt notice of the
commencement of such proceeding to the insurers in accordance with the
procedures set forth in the respective policies. The Company shall thereafter
take all necessary or desirable action to cause such insurers to pay, on behalf
of the Indemnitee, all amounts payable as a result of such proceeding in
accordance with the terms of such policies.
<PAGE>

          (e)  Selection of Counsel.   In the event the Company shall be
               --------------------
obligated under Section 3(a) hereof to pay the expenses of any proceeding
against Indemnitee, the Company, if appropriate, shall be entitled to assume the
defense of such proceeding, with counsel approved by Indemnitee, which approval
shall not be unreasonably withheld, upon the delivery to Indemnitee of written
notice of its election so to do. After delivery of such notice, approval of such
counsel by Indemnitee and the retention of such counsel by the Company, the
Company will not be liable to Indemnitee under this Agreement for any fees of
counsel subsequently incurred by Indemnitee with respect to the same proceeding,
provided that (i) Indemnitee shall have the right to employ his own counsel in
any such proceeding at Indemnitee's expense; and (ii) if (A) the employment of
counsel by Indemnitee has been previously authorized by the Company, (B)
Indemnitee shall have reasonably concluded that there may be a conflict of
interest between the Company and Indemnitee in the conduct of any such defense
or (C) the Company shall not, in fact, have employed counsel to assume the
defense of such proceeding, then the fees and expenses of Indemnitee's counsel
shall be at the expense of the Company.

     4.   Additional Indemnification Rights; Nonexclusivity.
          -------------------------------------------------

          (a)  Scope.   Notwithstanding any other provision of this Agreement,
               -----
the Company hereby agrees to indemnify the Indemnitee to the fullest extent
permitted by law, notwithstanding that such indemnification is not specifically
authorized by the other provisions of this Agreement, the Company's Certificate
of Incorporation, the Company's Bylaws or by statute. In the event of any
change, after the date of this Agreement, in any applicable law, statute or rule
which expands the right of a Delaware corporation to indemnify a member of its
Board of Directors or an officer, such changes shall be, ipso facto, within the
                                                         ---- -----
purview of Indemnitee's rights and Company's obligations under this Agreement.
In the event of any change in any applicable law, statute or rule which narrows
the right of a Delaware corporation to indemnify a member of its Board of
Directors or an officer, such changes, to the extent not otherwise required by
such law, statute or rule to be applied to this Agreement shall have no effect
on this Agreement or the parties' rights and obligations hereunder.

          (b)  Nonexclusivity.   The indemnification provided by this Agreement
               --------------
shall not be deemed exclusive of any rights to which Indemnitee may be entitled
under the Company's Certificate of Incorporation, its Bylaws, any agreement, any
vote of stockholders or disinterested directors, the General Corporation Law of
the State of Delaware, or otherwise, both as to action in Indemnitee's official
capacity and as to action in another capacity while holding such office. The
indemnification provided under this Agreement shall continue as to Indemnitee
for any action taken or not taken while serving in an indemnified capacity even
though he may have ceased to serve in such capacity at the time of any action or
other covered proceeding.

     5.   Partial Indemnification.   If Indemnitee is entitled under any
          -----------------------
provision of this Agreement to indemnification by the Company for some or a
portion of the expenses, judgments, fines, penalties or amounts paid in
settlement actually or reasonably incurred by him in the investigation, defense,
appeal or settlement of any civil or criminal action or proceeding, but not,
however, for the total amount thereof, the Company shall nevertheless indemnify
Indemnitee for the portion of such expenses, judgments, fines or penalties to
which Indemnitee is entitled.
<PAGE>

     6.   Mutual Acknowledgement.   Both the Company and Indemnitee acknowledge
          ----------------------
that in certain instances, Federal law or applicable public policy may prohibit
the Company from indemnifying its directors and officers under this Agreement or
otherwise. Indemnitee understands and acknowledges that the Company has
undertaken or may be required in the future to undertake with the Securities and
Exchange Commission to submit the question of indemnification to a court in
certain circumstances for a determination of the Company's right under public
policy to indemnify Indemnitee.

     7.   Directors' and Officers' Liability Insurance.   The Company shall,
          --------------------------------------------
from time to time, make a good faith determination whether or not it is
practicable for the Company to obtain and maintain a policy or policies of
insurance with reputable insurance companies providing the officers and
directors of the Company with coverage for losses from wrongful acts, or to
ensure the Company's performance of its indemnification obligations under this
Agreement. Among other considerations, the Company will weigh the costs of
obtaining such insurance coverage against the protection afforded by such
coverage. In all policies of directors' and officers' liability insurance,
Indemnitee shall be named as an insured in such a manner as to provide
Indemnitee the same rights and benefits as are accorded to the most favorably
insured of the Company's directors, if Indemnitee is a director; or of the
Company's officers, if Indemnitee is not a director of the Company but is an
officer; or of the Company's key employees, if Indemnitee is not an officer or
director but is a key employee. Notwithstanding the foregoing, the Company shall
have no obligation to obtain or maintain such insurance if the Company
determines in good faith that such insurance is not reasonably available, if the
premium costs for such insurance are disproportionate to the amount of coverage
provided, if the coverage provided by such insurance is limited by exclusions so
as to provide an insufficient benefit, or if Indemnitee is covered by similar
insurance maintained by a subsidiary or parent of the Company.

     8.   Severability.   Nothing in this Agreement is intended to require or
          ------------
shall be construed as requiring the Company to do or fail to do any act in
violation of applicable law. The Company's inability, pursuant to court order,
to perform its obligations under this Agreement shall not constitute a breach of
this Agreement. The provisions of this Agreement shall be severable as provided
in this Section 8. If this Agreement or any portion hereof shall be invalidated
on any ground by any court of competent jurisdiction, then the Company shall
nevertheless indemnify Indemnitee to the full extent permitted by any applicable
portion of this Agreement that shall not have been invalidated, and the balance
of this Agreement not so invalidated shall be enforceable in accordance with its
terms.

     9.   Exceptions.   Any other provision herein to the contrary
          ----------
notwithstanding, the Company shall not be obligated pursuant to the terms of
this Agreement:

          (a)  Excluded Acts.   To indemnify Indemnitee for any  acts or
               -------------
omissions or transactions from which a director may not be indemnified under the
Delaware General Corporation Law; or

          (b)  Claims Initiated by Indemnitee.   To indemnify or advance
               ------------------------------
expenses to Indemnitee with respect to proceedings or claims initiated or
brought voluntarily by Indemnitee and not by way of defense, except with
respect to proceedings brought to establish or enforce a right to
<PAGE>

indemnification under this Agreement or any other statute or law or otherwise as
required under Section 145 of the Delaware General Corporation Law, but such
indemnification or advancement of expenses may be provided by the Company in
specific cases if the Board of Directors has approved the initiation or bringing
of such claim; or

          (c)  Lack of Good Faith.   To indemnify Indemnitee for any expenses
               ------------------
incurred by the Indemnitee with respect to any proceeding instituted by
Indemnitee to enforce or interpret this Agreement, if a court of competent
jurisdiction or the arbitration panel determines that each of the material
assertions made by the Indemnitee in such proceeding was not made in good faith
or was frivolous; or

          (d)  Insured Claims.   To indemnify Indemnitee for  expenses or
               --------------
liabilities of any type whatsoever (including, but not limited to, judgments,
fines, ERISA excise taxes or penalties, and amounts paid in settlement) which
have been paid directly to Indemnitee by an insurance carrier under a policy of
directors' and officers' liability insurance maintained by the Company; or

          (e)  Claims Under Section 16(b).  To indemnify Indemnitee for expenses
               --------------------------
and the payment of profits arising from the purchase and sale by Indemnitee of
securities in violation of Section 16(b) of the Securities Exchange Act of 1934,
as amended, or any similar successor statute.

     10.  Effectiveness of Agreement.   To the extent that the indemnification
          --------------------------
permitted under the terms of certain provisions of this Agreement exceeds the
scope of the indemnification provided for in the Delaware General Corporation
Law, such provisions shall not be effective unless and until the Company's
Certificate of Incorporation authorizes such additional rights of
indemnification. In all other respects, the balance of this Agreement shall be
effective as of the date set forth on the first page and may apply to acts or
omissions of Indemnitee which occurred prior to such date if Indemnitee was an
officer, director, employee or other agent of the Company, or was serving at the
request of the Company as a director, officer, employee or agent of another
corporation, partnership, joint venture, trust or other enterprise, at the time
such act or omission occurred.

     11.  Construction of Certain Phrases.
          -------------------------------

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

          (b)  For purposes of this Agreement, references to "other enterprises"
shall include employee benefit plans; references to "fines" shall include any
excise taxes assessed on Indemnitee with respect to an employee benefit plan;
and references to "serving at the request of the Company"
<PAGE>

shall include any service as a director, officer, employee or agent of the
Company which imposes duties on, or involves services by, such director,
officer, employee or agent with respect to an employee benefit plan, its
participants, or beneficiaries.

     12.  Counterparts.   This Agreement may be executed in one or more
          ------------
counterparts, each of which shall constitute an original.

     13.  Successors and Assigns.   This Agreement shall be binding upon the
          ----------------------
Company and its successors and assigns, and shall inure to the benefit of
Indemnitee and Indemnitee's estate, heirs, legal representatives and assigns.

     14.  Arbitration.   It is understood and agreed that the Company and
          -----------
Indemnitee shall carry out this Agreement in the spirit of mutual cooperation
and good faith and that any differences, disputes or controversies shall be
resolved and settled amicably among the parties hereto. In the event that the
dispute, controversy or difference is not so settled in the above manner within
forty-five (45) days, then the matter shall be exclusively submitted to
arbitration in Santa Clara county, California before three independent
technically qualified arbitrators in accordance with the Commercial Arbitration
Rules of the American Arbitration Association and under the laws of Delaware,
without reference to conflict of laws principles. Subject to Sections 1(b) and
6, arbitration shall be the exclusive forum and the decision and award by the
arbitrator(s) shall be final and binding upon the parties concerned and may be
entered in any state court of California having jurisdiction.

     15.  Attorneys' Fees.   In the event that any action is instituted or claim
          ---------------
is submitted to arbitration by Indemnitee under this Agreement to enforce or
interpret any of the terms  hereof, Indemnitee shall be entitled to be paid all
court costs and expenses, including reasonable attorneys' fees, incurred by
Indemnitee with respect to such action or arbitration, unless as a part of such
action, a court of competent jurisdiction or the arbitrator(s) determines that
each of the material assertions made by Indemnitee as a basis for such claim
were not made in good faith or were frivolous.  In the event of an action
instituted or a claim submitted to arbitration by or in the name of the Company
under this Agreement or to enforce or interpret any of the terms of this
Agreement, Indemnitee shall be entitled to be paid all court costs and expenses,
including attorneys' fees, incurred by Indemnitee in defense of such action or
claim (including with respect to Indemnitee's counterclaims and cross-claims
made in such action or arbitration), unless as a part of such action the court
or the arbitrator(s) determines that each of Indemnitee's material defenses to
such action or claim were made in bad faith or were frivolous.

     16.  Notice.   All notices, requests, demands and other communications
          ------
under this Agreement shall be in writing and shall be deemed duly given (i) if
delivered by hand and receipted for by the party addressee, on the date of such
receipt, or (ii) if mailed by domestic certified or registered mail with postage
prepaid, on the third business day after the date postmarked. Addresses for
notice to either party are as shown on the signature page of this Agreement, or
as subsequently modified by written notice.

     17.  Consent to Jurisdiction.   The Company and Indemnitee each hereby
          -----------------------
irrevocably consent to the jurisdiction of the courts of the State of California
for all purposes in connection with
<PAGE>

any proceeding which arises out of or relates to this Agreement and agree that
any action instituted under this Agreement shall be brought only in the state
courts of the State of California in Santa Clara County and that any
arbitration proceeding which arises out of or relates to this Agreement shall be
held in Santa Clara County, California.

     18.  Choice of Law.   This Agreement shall be governed by and its
          -------------
provisions construed in accordance with the laws of the State of Delaware as
applied to contracts between Delaware residents entered into and performed
entirely within Delaware.

     19.  Subrogation.   In the event of payment under this Agreement, the
          -----------
Company shall be subrogated to the extent of such payment to all of the rights
of recovery of Indemnitee, who shall execute all documents required and shall do
all acts that may be necessary to secure such rights and to enable the
corporation effectively to bring suit to enforce such rights.

     20.  Continuation of Indemnification.   All agreements and obligations of
          -------------------------------
the Company contained herein shall continue during the period that Indemnitee is
a director, officer or agent of the Company and shall continue thereafter so
long as Indemnitee shall be subject to any possible claim or threatened, pending
or completed action, suit or proceeding, whether civil, criminal, arbitrational,
administrative or investigative, by reason of the fact that Indemnitee was
serving in the capacity referred to herein.

     21.  Amendment and Termination.   Subject to Section 20, no amendment,
          -------------------------
modification, termination or cancellation of this Agreement shall be effective
unless in writing signed by both parties hereto.

     22.  Integration and Entire Agreement.   This Agreement (a) sets forth the
          --------------------------------
entire understanding between the parties, (b) supersedes all previous written or
oral negotiations, commitments, understandings and agreements relating to the
subject matter hereof and (c) merges all prior and contemporaneous discussions
between the parties.
<PAGE>

          IN WITNESS WHEREOF, the parties hereto have executed this Agreement as
of the date first above written.

                                              ANNUNCIO SOFTWARE, INC.

                                              By:___________________________
                                              Title:________________________
                                              Address: 2440 El Camino Real,
                                                       Suite 300
                                                       Mountain View, CA 94040

AGREED TO AND ACCEPTED:

INDEMNITEE:

______________________________
Signature

______________________________
Print Name

______________________________

______________________________
Address<PAGE>

                                                                    EXHIBIT 10.2

                            ANNUNCIO SOFTWARE, INC.

                            1997 STOCK OPTION PLAN

                  (As Amended and Restated January 31, 2000)

     1.   Purposes of the Plan.  The purposes of this Stock Option Plan are to
          --------------------
attract and retain the best available personnel for positions of substantial
responsibility, to provide additional incentive to Employees, Directors and
Consultants and to promote the success of the Company's business. Options
granted under the Plan may be Incentive Stock Options or Nonstatutory Stock
Options, as determined by the Administrator at the time of grant. Stock Purchase
Rights may also be granted under the Plan.

     2.   Definitions.  As used herein, the following definitions shall apply:
          ------------

          (a)  "Administrator" means the Board or any of its Committees as shall
                -------------
be administering the Plan in accordance with Section 4 hereof.

          (b)  "Applicable Laws" means the requirements relating to the
                ---------------
administration of stock option plans under U.S. state corporate laws, U.S.
federal and state securities laws, the Code, any stock exchange or quotation
system on which the Common Stock is listed or quoted and the applicable laws of
any other country or jurisdiction where Options or Stock Purchase Rights are
granted under the Plan.

          (c)  "Board" means the Board of Directors of the Company.
                -----

          (d)  "Code" means the Internal Revenue Code of 1986, as amended.
                ----

          (e)  "Committee"  means a committee of Directors appointed by the
                ---------
Board in accordance with Section 4 hereof.

          (f)  "Common Stock" means the Common Stock of the Company.
                ------------

          (g)  "Company" means Annuncio Software, Inc. a California
                -------
corporation.

          (h)  "Consultant" means any person who is engaged by the Company or
                ----------
any Parent or Subsidiary to render consulting or advisory services to such
entity.

          (i)  "Director" means a member of the Board of Directors of the
                --------
Company.
<PAGE>

          (j)  "Disability" means total and permanent disability as defined
                ----------
in Section 22(e)(3) of the Code.

          (k)  "Employee" means any person, including Officers and Directors,
                --------
employed by the Company or any Parent or Subsidiary of the Company. A Service
Provider shall not cease to be an Employee in the case of (i) any leave of
absence approved by the Company or (ii) transfers between locations of the
Company or between the Company, its Parent, any Subsidiary, or any successor.
For purposes of Incentive Stock Options, no such leave may exceed ninety days,
unless reemployment upon expiration of such leave is guaranteed by statute or
contract. If reemployment upon expiration of a leave of absence approved by the
Company is not so guaranteed, on the 181st day of such leave any Incentive Stock
Option held by the Optionee shall cease to be treated as an Incentive Stock
Option and shall be treated for tax purposes as a Nonstatutory Stock Option.
Neither service as a Director nor payment of a director's fee by the Company
shall be sufficient to constitute "employment" by the Company.

          (l)  "Exchange Act" means the Securities Exchange Act of 1934, as
                ------------
amended.

          (m)  "Fair Market Value" means, as of any date, the value of
                -----------------
Common Stock determined as follows:

               (i)    If the Common Stock is listed on any established stock
exchange or a national market system, including without limitation the Nasdaq
National Market or The Nasdaq SmallCap Market of The Nasdaq Stock Market, its
Fair Market Value shall be the closing sales price for such stock (or the
closing bid, if no sales were reported) as quoted on such exchange or system for
the last market trading day prior to the time of determination, as reported in
The Wall Street Journal or such other source as the Administrator deems
reliable;

               (ii)   If the Common Stock is regularly quoted by a recognized
securities dealer but selling prices are not reported, its Fair Market Value
shall be the mean between the high bid and low asked prices for the Common Stock
on the last market trading day prior to the day of determination; or

               (iii)  In the absence of an established market for the Common
Stock, the Fair Market Value thereof shall be determined in good faith by the
Administrator.

          (n)  "Incentive Stock Option" means an Option intended to qualify as
                ----------------------
an incentive stock option within the meaning of Section 422 of the Code.

          (o)  "Nonstatutory Stock Option" means an Option not intended to
                -------------------------
qualify as an Incentive Stock Option.

          (p)  "Officer" means a person who is an officer of the Company
                -------
within the meaning of Section 16 of the Exchange Act and the rules and
regulations promulgated thereunder.

          (q)  "Option" means a stock option granted pursuant to the Plan.
                ------

                                      -2-
<PAGE>

          (r)  "Option Agreement" means a written or electronic agreement
                ----------------
between the Company and an Optionee evidencing the terms and conditions of an
individual Option grant. The Option Agreement is subject to the terms and
conditions of the Plan.

          (s)  "Option Exchange Program" means a program whereby outstanding
                -----------------------
Options are exchanged for Options with a lower exercise price.

          (t)  "Optioned Stock" means the Common Stock subject to an Option
                --------------
or a Stock Purchase Right.

          (u)  "Optionee" means the holder of an outstanding Option or Stock
                --------
Purchase Right granted under the Plan.

          (v)  "Parent" means a "parent corporation," whether now or hereafter
                ------
existing, as defined in Section 424(e) of the Code.

          (w)  "Plan" means this 1997 Stock Option Plan.
                ----

          (x)  "Restricted Stock" means shares of Common Stock acquired pursuant
                ----------------
to a grant of a Stock Purchase Right under Section 11 below.

          (y)  "Section 16(b)" means Section 16(b) of the Securities Exchange
                -------------
Act of 1934, as amended.

          (z)  "Service Provider"  means an Employee, Director or Consultant.
                ----------------

          (aa) "Share" means a share of the Common Stock, as adjusted in
                -----
accordance with Section 12 below.

          (bb) "Stock Purchase Right" means a right to purchase Common Stock
                --------------------
pursuant to Section 11 below.

          (cc) "Subsidiary" means a "subsidiary corporation," whether now or
                ----------
hereafter as defined in Section 424(f) of the Code.

     3.   Stock Subject to the Plan. Subject to the provisions of Section 12 of
          -------------------------
the Plan, the maximum aggregate number of Shares which may be subject to option
and sold under the Plan is 8,625,000 Shares. The Shares may be authorized but
unissued, or reacquired Common Stock.

     If an Option or Stock Purchase Right expires or becomes unexercisable
without having been exercised in full, or is surrendered pursuant to an Option
Exchange Program, the unpurchased Shares which were subject thereto shall become
available for future grant or sale under the Plan (unless the Plan has
terminated). However, Shares that have actually been issued under the Plan, upon
exercise of either an Option or Stock Purchase Right, shall not be returned to
the Plan and shall not become available for future distribution under the Plan,
except that if Shares of Restricted Stock are

                                      -3-
<PAGE>

repurchased by the Company at their original purchase price, such Shares shall
become available for future grant under the Plan.

     4.   Administration of the Plan.
          --------------------------

          (a)  Administrator.  The Plan shall be administered by the Board
               -------------
or a Committee appointed by the Board, which Committee shall be constituted to
comply with Applicable Laws.

          (b)  Powers of the Administrator.  Subject to the provisions of
               ---------------------------
the Plan and, in the case of a Committee, the specific duties delegated by the
Board to such Committee, and subject to the approval of any relevant
authorities, the Administrator shall have the authority in its discretion:

               (i)    to determine the Fair Market Value;

               (ii)   to select the Service Providers to whom Options and Stock
Purchase Rights may from time to time be granted hereunder;

               (iii)  to determine the number of Shares to be covered by each
such award granted hereunder;

               (iv)   to approve forms of agreement for use under the Plan;

               (v)    to determine the terms and conditions, of any Option or
Stock Purchase Right granted hereunder. Such terms and conditions include, but
are not limited to, the exercise price, the time or times when Options or Stock
Purchase Rights may be exercised (which may be based on performance criteria),
any vesting acceleration or waiver of forfeiture restrictions, and any
restriction or limitation regarding any Option or Stock Purchase Right or the
Common Stock relating thereto, based in each case on such factors as the
Administrator, in its sole discretion, shall determine;

               (vi)   to determine whether and under what circumstances an
Option may be settled in cash under subsection 9(e) instead of Common Stock;

               (vii)  to reduce the exercise price of any Option to the then
current Fair Market Value if the Fair Market Value of the Common Stock covered
by such Option has declined since the date the Option was granted;

               (viii) to initiate an Option Exchange Program;

               (ix)   to prescribe, amend and rescind rules and regulations
relating to the Plan, including rules and regulations relating to sub-plans
established for the purpose of qualifying for preferred tax treatment under
foreign tax laws;

               (x)    to allow Optionees to satisfy withholding tax obligations
by electing to have the Company withhold from the Shares to be issued upon
exercise of an Option or Stock Purchase Right that number of Shares having a
Fair Market Value equal to the amount required to be

                                      -4-
<PAGE>

withheld. The Fair Market Value of the Shares to be withheld shall be determined
on the date that the amount of tax to be withheld is to be determined. All
elections by Optionees to have Shares withheld for this purpose shall be made in
such form and under such conditions as the Administrator may deem necessary or
advisable; and

               (xi)   to construe and interpret the terms of the Plan and awards
granted pursuant to the Plan.

          (c)  Effect of Administrator's Decision.  All decisions,
               ----------------------------------
determinations and interpretations of the Administrator shall be final and
binding on all Optionees.

     5.   Eligibility.
          -----------

          (a)  Nonstatutory Stock Options and Stock Purchase Rights may be
granted to Service Providers. Incentive Stock Options may be granted only to
Employees.

          (b)  Each Option shall be designated in the Option Agreement as either
an Incentive Stock Option or a Nonstatutory Stock Option. However,
notwithstanding such designation, to the extent that the aggregate Fair Market
Value of the Shares with respect to which Incentive Stock Options are
exercisable for the first time by the Optionee during any calendar year (under
all plans of the Company and any Parent or Subsidiary) exceeds $100,000, such
Options shall be treated as Nonstatutory Stock Options. For purposes of this
Section 5(b), Incentive Stock Options shall be taken into account in the order
in which they were granted. The Fair Market Value of the Shares shall be
determined as of the time the Option with respect to such Shares is granted.

          (c)  Neither the Plan nor any Option or Stock Purchase Right shall
confer upon any Optionee any right with respect to continuing the Optionee's
relationship as a Service Provider with the Company, nor shall it interfere in
any way with his or her right or the Company's right to terminate such
relationship at any time, with or without cause.

     6.   Term of Plan.  The Plan shall become effective upon its adoption by
          ------------
the Board. It shall continue in effect for a term of ten (10) years unless
sooner terminated under Section 14 of the Plan.

     7.   Term of Option.  The term of each Option shall be stated in the Option
          --------------
Agreement; provided, however, that the term shall be no more than ten (10) years
from the date of grant thereof.  In the case of an Incentive Stock Option
granted to an Optionee who, at the time the Option is granted, owns stock
representing more than ten percent (10%) of the voting power of all classes of
stock of the Company or any Parent or Subsidiary, the term of the Option shall
be five (5) years from the date of grant or such shorter term as may be provided
in the Option Agreement.

     8.   Option Exercise Price and Consideration.
          ---------------------------------------

                                      -5-
<PAGE>

          (a)  The per share exercise price for the Shares to be issued upon
exercise of an Option shall be such price as is determined by the Administrator,
but shall be subject to the following:

               (i)   In the case of an Incentive Stock Option

                     (1)  granted to an Employee who, at the time of grant of
such Option, owns stock representing more than ten percent (10%) of the voting
power of all classes of stock of the Company or any Parent or Subsidiary, the
exercise price shall be no less than 110% of the Fair Market Value per Share on
the date of grant.

                     (2)  granted to any other Employee, the per Share exercise
price shall be no less than 100% of the Fair Market Value per Share on the date
of grant.

               (ii)  In the case of a Nonstatutory Stock Option

                     (1)  granted to a Service Provider who, at the time of
grant of such Option, owns stock representing more than ten percent (10%) of the
voting power of all classes of stock of the Company or any Parent or Subsidiary,
the exercise price shall be no less than 110% of the Fair Market Value per Share
on the date of grant.

                     (2)  granted to any other Service Provider, the per Share
exercise price shall be no less than 85% of the Fair Market Value per Share on
the date of grant.

               (iii) Notwithstanding the foregoing, Options may be granted with
a per Share exercise price other than as required above pursuant to a merger or
other corporate transaction.

          (b)  The consideration to be paid for the Shares to be issued upon
exercise of an Option, including the method of payment, shall be determined by
the Administrator (and, in the case of an Incentive Stock Option, shall be
determined at the time of grant).  Such consideration  may consist of (1) cash,
(2) check, (3) promissory note, (4) other Shares which (x) in the case of Shares
acquired upon exercise of an Option, have been owned by the Optionee for more
than six months on the date of surrender, and (y) have a Fair Market Value on
the date of surrender equal to the aggregate exercise price of the Shares as to
which such Option shall be exercised, (5) consideration received by the Company
under a cashless exercise program implemented by the Company in connection with
the Plan, or (6) any combination of the foregoing methods of payment.  In making
its determination as to the type of consideration to accept, the Administrator
shall consider if acceptance of such consideration may be reasonably expected to
benefit the Company.

     9.   Exercise of Option.
          ------------------

          (a)  Procedure for Exercise; Rights as a Shareholder.  Any Option
               -----------------------------------------------
granted hereunder shall be exercisable according to the terms hereof at such
times and under such conditions as determined by the Administrator and set forth
in the Option Agreement. Except in the case of Options granted to Officers,
Directors and Consultants, Options shall become exercisable at a rate of

                                      -6-
<PAGE>

no less than 20% per year over five (5) years from the date the Options are
granted. Unless the Administrator provides otherwise, vesting of Options granted
hereunder shall be tolled during any unpaid leave of absence. An Option may not
be exercised for a fraction of a Share.

     An Option shall be deemed exercised when the Company receives: (i) written
or electronic notice of exercise (in accordance with the Option Agreement) from
the person entitled to exercise the Option, and (ii) full payment for the Shares
with respect to which the Option is exercised. Full payment may consist of any
consideration and method of payment authorized by the Administrator and
permitted by the Option Agreement and the Plan. Shares issued upon exercise of
an Option shall be issued in the name of the Optionee or, if requested by the
Optionee, in the name of the Optionee and his or her spouse. Until the Shares
are issued (as evidenced by the appropriate entry on the books of the Company or
of a duly authorized transfer agent of the Company), no right to vote or receive
dividends or any other rights as a shareholder shall exist with respect to the
Shares, notwithstanding the exercise of the Option. The Company shall issue (or
cause to be issued) such Shares promptly after the Option is exercised. No
adjustment will be made for a dividend or other right for which the record date
is prior to the date the Shares are issued, except as provided in Section 12 of
the Plan.

     Exercise of an Option in any manner shall result in a decrease in the
number of Shares thereafter available, both for purposes of the Plan and for
sale under the Option, by the number of Shares as to which the Option is
exercised.

          (b)  Termination of Relationship as a Service Provider. If an Optionee
               -------------------------------------------------
ceases to be a Service Provider, such Optionee may exercise his or her Option
within such period of time as is specified in the Option Agreement (of at least
thirty (30) days) to the extent that the Option is vested on the date of
termination (but in no event later than the expiration of the term of the Option
as set forth in the Option Agreement). In the absence of a specified time in the
Option Agreement, the Option shall remain exercisable for three (3) months
following the Optionee's termination. If, on the date of termination, the
Optionee is not vested as to his or her entire Option, the Shares covered by the
unvested portion of the Option shall revert to the Plan. If, after termination,
the Optionee does not exercise his or her Option within the time specified by
the Administrator, the Option shall terminate, and the Shares covered by such
Option shall revert to the Plan.

          (c)  Disability of Optionee.  If an Optionee ceases to be a Service
               ----------------------
Provider as a result of the Optionee's Disability, the Optionee may exercise his
or her Option within such period of time as is specified in the Option Agreement
(of at least six (6) months) to the extent the Option is vested on the date of
termination (but in no event later than the expiration of the term of such
Option as set forth in the Option Agreement). In the absence of a specified time
in the Option Agreement, the Option shall remain exercisable for twelve (12)
months following the Optionee's termination. If, on the date of termination, the
Optionee is not vested as to his or her entire Option, the Shares covered by the
unvested portion of the Option shall revert to the Plan. If, after termination,
the Optionee does not exercise his or her Option within the time specified
herein, the Option shall terminate, and the Shares covered by such Option shall
revert to the Plan.

                                      -7-
<PAGE>

          (d)  Death of Optionee.  If an Optionee dies while a Service Provider,
               -----------------
the Option may be exercised within such period of time as is specified in the
Option Agreement (of at least six (6) months) to the extent that the Option is
vested on the date of death (but in no event later than the expiration of the
term of such Option as set forth in the Option Agreement) by the Optionee's
estate or by a person who acquires the right to exercise the Option by bequest
or inheritance. In the absence of a specified time in the Option Agreement, the
Option shall remain exercisable for twelve (12) months following the Optionee's
termination. If, at the time of death, the Optionee is not vested as to the
entire Option, the Shares covered by the unvested portion of the Option shall
immediately revert to the Plan. If the Option is not so exercised within the
time specified herein, the Option shall terminate, and the Shares covered by
such Option shall revert to the Plan.

          (e)  Buyout Provisions.  The Administrator may at any time offer to
               -----------------
buy out for a payment in cash or Shares, an Option previously granted, based on
such terms and conditions as the Administrator shall establish and communicate
to the Optionee at the time that such offer is made.

     10.  Non-Transferability of Options and Stock Purchase Rights.  The Options
          --------------------------------------------------------
Stock Purchase Rights may not be sold, pledged, assigned, hypothecated,
transferred, or disposed of in any manner other than by will or by the laws of
descent or distribution and may be exercised, during the lifetime of the
Optionee, only by the Optionee.

     11.  Stock Purchase Rights.
          ---------------------

          (a)  Rights to Purchase.  Stock Purchase Rights may be issued either
               ------------------
alone, in addition to, or in tandem with other awards granted under the Plan
and/or cash awards made outside of the Plan. After the Administrator determines
that it will offer Stock Purchase Rights under the Plan, it shall advise the
offeree in writing or electronically of the terms, conditions and restrictions
related to the offer, including the number of Shares that such person shall be
entitled to purchase, the price to be paid, and the time within which such
person must accept such offer. The terms of the offer shall comply in all
respects with Section 260.140.42 of Title 10 of the California Code of
Regulations. The offer shall be accepted by execution of a Restricted Stock
purchase agreement in the form determined by the Administrator.

          (b)  Repurchase Option.  Unless the Administrator determines
               -----------------
otherwise, the Restricted Stock purchase agreement shall grant the Company a
repurchase option exercisable upon the voluntary or involuntary termination of
the purchaser's service with the Company for any reason (including death or
disability). The purchase price for Shares repurchased pursuant to the
Restricted Stock purchase agreement shall be the original price paid by the
purchaser and may be paid by cancellation of any indebtedness of the purchaser
to the Company. The repurchase option shall lapse at such rate as the
Administrator may determine. Except with respect to Shares purchased by
Officers, Directors and Consultants, the repurchase option shall in no case
lapse at a rate of less than 20% per year over five (5) years from the date of
purchase.

          (c)  Other Provisions.  The Restricted Stock purchase agreement shall
               ----------------
contain such other terms, provisions and conditions not inconsistent with the
Plan as may be determined by the Administrator in its sole discretion.

                                      -8-
<PAGE>

          (d)  Rights as a Shareholder.  Once the Stock Purchase Right is
               -----------------------
exercised, the purchaser shall have rights equivalent to those of a shareholder
and shall be a shareholder when his or her purchase is entered upon the records
of the duly authorized transfer agent of the Company. No adjustment shall be
made for a dividend or other right for which the record date is prior to the
date the Stock Purchase Right is exercised, except as provided in Section 12 of
the Plan.

     12.  Adjustments Upon Changes in Capitalization, Merger or Asset Sale.
          ----------------------------------------------------------------

          (a)  Changes in Capitalization.  Subject to any required action by the
               -------------------------
shareholders of the Company, the number of shares of Common Stock covered by
each outstanding Option or Stock Purchase Right, and the number of shares of
Common Stock which have been authorized for issuance under the Plan but as to
which no Options or Stock Purchase Rights have yet been granted or which have
been returned to the Plan upon cancellation or expiration of an Option or Stock
Purchase Right, as well as the price per share of Common Stock covered by each
such outstanding Option or Stock Purchase Right, shall be proportionately
adjusted for any increase or decrease in the number of issued shares of Common
Stock resulting from a stock split, reverse stock split, stock dividend,
combination or reclassification of the Common Stock, or any other increase or
decrease in the number of issued shares of Common Stock effected without receipt
of consideration by the Company. The conversion of any convertible securities of
the Company shall not be deemed to have been "effected without receipt of
consideration." Such adjustment shall be made by the Board, whose determination
in that respect shall be final, binding and conclusive. Except as expressly
provided herein, no issuance by the Company of shares of stock of any class, or
securities convertible into shares of stock of any class, shall affect, and no
adjustment by reason thereof shall be made with respect to, the number or price
of shares of Common Stock subject to an Option or Stock Purchase Right.

          (b)  Dissolution or Liquidation.  In the event of the proposed
               --------------------------
dissolution or liquidation of the Company, the Administrator shall notify each
Optionee as soon as practicable prior to the effective date of such proposed
transaction. The Administrator in its discretion may provide for an Optionee to
have the right to exercise his or her Option until fifteen (15) days prior to
such transaction as to all of the Optioned Stock covered thereby, including
Shares as to which the Option would not otherwise be exercisable. In addition,
the Administrator may provide that any Company repurchase option applicable to
any Shares purchased upon exercise of an Option or Stock Purchase Right shall
lapse as to all such Shares, provided the proposed dissolution or liquidation
takes place at the time and in the manner contemplated. To the extent it has not
been previously exercised, an Option or Stock Purchase Right will terminate
immediately prior to the consummation of such proposed action.

          (c)  Merger or Asset Sale.  In the event of a merger of the
               --------------------
Company with or into another corporation, or the sale of substantially all of
the assets of the Company, each outstanding Option and Stock Purchase Right
shall be assumed or an equivalent option or right substituted by the successor
corporation or a Parent or Subsidiary of the successor corporation. In the event
that the successor corporation refuses to assume or substitute for the Option or
Stock Purchase Right, the Optionee shall fully vest in and have the right to
exercise the Option or Stock Purchase Right as to

                                      -9-
<PAGE>

all of the Optioned Stock, including Shares as to which it would not otherwise
be vested or exercisable. If an Option or Stock Purchase Right becomes fully
vested and exercisable in lieu of assumption or substitution in the event of a
merger or sale of assets, the Administrator shall notify the Optionee in writing
or electronically that the Option or Stock Purchase Right shall be fully
exercisable for a period of fifteen (15) days from the date of such notice, and
the Option or Stock Purchase Right shall terminate upon the expiration of such
period. For the purposes of this paragraph, the Option or Stock Purchase Right
shall be considered assumed if, following the merger or sale of assets, the
option or right confers the right to purchase or receive, for each Share of
Optioned Stock subject to the Option or Stock Purchase Right immediately prior
to the merger or sale of assets, the consideration (whether stock, cash, or
other securities or property) received in the merger or sale of assets by
holders of Common Stock for each Share held on the effective date of the
transaction (and if holders were offered a choice of consideration, the type of
consideration chosen by the holders of a majority of the outstanding Shares);
provided, however, that if such consideration received in the merger or sale of
assets is not solely common stock of the successor corporation or its Parent,
the Administrator may, with the consent of the successor corporation, provide
for the consideration to be received upon the exercise of the Option or Stock
Purchase Right, for each Share of Optioned Stock subject to the Option or Stock
Purchase Right, to be solely common stock of the successor corporation or its
Parent equal in fair market value to the per share consideration received by
holders of Common Stock in the merger or sale of assets.

     13.  Time of Granting Options and Stock Purchase Rights.  The date of grant
          --------------------------------------------------
of an Option or Stock Purchase Right shall, for all purposes, be the date on
which the Administrator makes the determination granting such Option or Stock
Purchase Right, or such other date as is determined by the Administrator. Notice
of the determination shall be given to each Employee to whom an Option or Stock
Purchase Right is so granted within a reasonable time after the date of such
grant.

     14.  Amendment and Termination of the Plan.
          -------------------------------------

          (a)  Amendment and Termination.  The Board may at any time amend,
               -------------------------
alter, suspend or terminate the Plan.

          (b)  Shareholder Approval.  The Board shall obtain shareholder
               --------------------
approval of any Plan amendment to the extent necessary and desirable to comply
with Applicable Laws.

          (c)  Effect of Amendment or Termination.  No amendment, alteration,
               ----------------------------------
suspension or termination of the Plan shall impair the rights of any Optionee,
unless mutually agreed otherwise between the Optionee and the Administrator,
which agreement must be in writing and signed by the Optionee and the Company.
Termination of the Plan shall not affect the Administrator's ability to exercise
the powers granted to it hereunder with respect to Options granted under the
Plan prior to the date of such termination.

     15.  Conditions Upon Issuance of Shares.
          ----------------------------------

          (a)  Legal Compliance.  Shares shall not be issued pursuant to the
               ----------------
exercise of an Option unless the exercise of such Option and the issuance and
delivery of such Shares shall comply

                                      -10-
<PAGE>

with Applicable Laws and shall be further subject to the approval of counsel for
the Company with respect to such compliance.

          (b)  Investment Representations.  As a condition to the exercise of an
               --------------------------
Option, the Administrator may require the person exercising such Option to
represent and warrant at the time of any such exercise that the Shares are being
purchased only for investment and without any present intention to sell or
distribute such Shares if, in the opinion of counsel for the Company, such a
representation is required.

     16.  Inability to Obtain Authority.  The inability of the Company to obtain
          -----------------------------
authority from any regulatory body having jurisdiction, which authority is
deemed by the Company's counsel to be necessary to the lawful issuance and sale
of any Shares hereunder, shall relieve the Company of any liability in respect
of the failure to issue or sell such Shares as to which such requisite authority
shall not have been obtained.

     17.  Reservation of Shares.  The Company, during the term of this Plan,
          ---------------------
shall at all times reserve and keep available such number of Shares as shall be
sufficient to satisfy the requirements of the Plan.

     18.  Shareholder Approval.  The Plan shall be subject to approval by the
          --------------------
shareholders of the Company within twelve (12) months after the date the Plan is
adopted.  Such shareholder approval shall be obtained in the degree and manner
required under Applicable Laws.

     Information to Optionees and Purchasers.  The Company shall provide to each
     ---------------------------------------
Optionee and to each individual who acquires Shares pursuant to the Plan, not
less frequently than annually during the period such Optionee or purchaser has
one or more Options or Stock Purchase Rights outstanding, and, in the case of an
individual who acquires Shares pursuant to the Plan, during the period such
individual owns such Shares, copies of annual financial statements. The Company
shall not be required to provide such statements to key employees whose duties
in connection with the Company assure their access to equivalent information.

                                      -11-
<PAGE>

                            ANNUNCIO SOFTWARE, INC.
                            1997 STOCK OPTION PLAN
                                NOTICE OF GRANT

     Unless otherwise defined herein, the terms defined in the Plan shall have
the same defined meanings in this Notice of Grant.

     You have been granted an option to purchase Common Stock of the Company,
subject to the terms and conditions of the Plan and this Stock Option Agreement,
as follows:

     Date of Grant                      ______________________________

     Vesting Commencement Date          ______________________________

     Exercise Price per Share           $_____________________________

     Total Number of Shares Granted     ______________________________

     Total Exercise Price               ______________________________

     Type of Option:                    ____ Incentive Stock Option

                                        ____ Nonstatutory Stock Option

     Term/Expiration Date:              ______________________________

     Vesting Schedule:
     ----------------

     This Option may be exercised, in whole or in part, in accordance with the
following schedule:

     25% of the Shares subject to the Option shall vest twelve months after the
Vesting Commencement Date, and 1/48 of the Shares subject to the Option shall
vest each month thereafter.

     Termination Period:
     ------------------

     This Option may be exercised for three (3) months after termination of
employment or consulting relationship, or such longer period as may be
applicable upon death or Disability of Optionee as provided in the Plan, but in
no event later than the Term/Expiration Date as provided above.
<PAGE>

                            ANNUNCIO SOFTWARE, INC.
                            1997 STOCK OPTION PLAN
                               OPTION AGREEMENT

     1.   Grant of Option.  Annuncio Software, Inc. (the "COMPANY"), hereby
          ---------------
grants to the Optionee (the "OPTIONEE") named in the Notice of Grant, an option
(the "OPTION") to purchase the total number of shares of Common Stock (the
"SHARES") set forth in the Notice of Grant, at the exercise price per share set
forth in the Notice of Grant (the "EXERCISE PRICE") subject to the terms,
definitions and provisions of the 1997 Stock Option Plan (the "PLAN") adopted by
the Company, which is incorporated herein by reference. Unless otherwise defined
herein, the terms defined in the Plan shall have the same defined meanings in
this Option Agreement.

     If designated in the Notice of Grant as an Incentive Stock Option ("ISO"),
this Option is intended to qualify as an Incentive Stock Option as defined in
Section 422 of the Code.  However, if this Option is intended to be an Incentive
Stock Option, to the extent that it exceeds the $100,000 rule of Code Section
422(d) it shall be treated as a Nonstatutory Stock Option ("NSO").

     2.   Exercise of Option. This Option shall be exercisable during its term
          ------------------
in accordance with the Vesting Schedule set out in the Notice of Grant and with
the provisions of Section 9 of the Plan as follows:

          (a). Right to Exercise.
               -----------------

               (i)   This Option may not be exercised for a fraction of a Share.

               (ii)  In the event of Optionee's death, disability or other
termination of the Optionee's Continuous Status as an Employee or Consultant,
the exercisability of the Option is governed by Sections 6, 7 and 8 below,
subject to the limitation contained in subsection 2(a)(iii).

               (iii) In no event may this Option be exercised after the date of
expiration of the term of this Option as set forth in the Notice of Grant.

          (b)  Method of Exercise. This Option shall be exercisable by written
               ------------------
notice (in the form attached as Exhibit A) which shall state the election to
                                ---------
exercise the Option, the number of Shares in respect of which the Option is
being exercised, and such other representations and agreements as to the
holder's investment intent with respect to such shares of Common Stock as may be
required by the Company pursuant to the provisions of the Plan. Such written
notice shall be signed by the Optionee and shall be delivered in person or by
certified mail to the Secretary of the Company. The written notice shall be
accompanied by payment of the Exercise Price. This Option shall be deemed to be
exercised upon receipt by the Company of such written notice accompanied by the
Exercise Price.

     No Shares will be issued pursuant to the exercise of an Option unless such
issuance and such exercise shall comply with all relevant provisions of law and
the requirements of any stock exchange
<PAGE>

or national market system upon which the Common Stock is then listed.  Assuming
such compliance, for income tax purposes the Shares shall be considered
transferred to the Optionee on the date on which the Option is exercised with
respect to such Shares.

     3.   Optionee's Representations.  In the event the Shares purchasable
          --------------------------
pursuant to the exercise of this Option have not been registered under the
Securities Act of 1933, as amended, at the time this Option is exercised,
Optionee shall, if required by the Company, concurrently with the exercise of
all or any portion of this Option, deliver to the Company his or her Investment
Representation Statement in the form attached hereto as Exhibit B.
                                                        ---------

     4.   Method of Payment.  Payment of the Exercise Price shall be by any of
          -----------------
the following, or a combination thereof, at the election of the Optionee:

          (a)  cash; or

          (b)  check; or

          (c)  surrender of other shares of Common Stock of the Company which
(i) in the case of Shares acquired pursuant to the exercise of a Company option,
have been owned by the Optionee for more than six (6) months on the date of
surrender, and (ii) have a Fair Market Value on the date of surrender equal to
the Exercise Price of the Shares as to which the Option is being exercised; or

          (d)  to the extent authorized by the Company, delivery of a properly
executed exercise notice together with such other documentation as the
Administrator and the broker, if applicable, shall require to effect an exercise
of the Option and delivery to the Company of the sale or loan proceeds required
to pay the Exercise Price.

     5.   Restrictions on Exercise.  This Option may not be exercised if the
          ------------------------
issuance of such Shares upon such exercise or the method of payment of
consideration for such shares would constitute a violation of any applicable
federal or state securities or other law or regulation, including any rule under
Part 207 of Title 12 of the Code of Federal Regulations as promulgated by the
Federal Reserve Board. As a condition to the exercise of this Option, the
Company may require Optionee to make any representation and warranty to the
Company as may be required by any applicable law or regulation.

     6.   Termination of Relationship.  In the event an Optionee's Continuous
          ---------------------------
Status as an Employee terminates, Optionee may, to the extent otherwise so
entitled at the date of such termination (the "TERMINATION DATE"), exercise this
Option during the Termination Period set out in the Notice of Grant. To the
extent that Optionee was not entitled to exercise this Option at the date of
such termination, or if Optionee does not exercise this Option within the time
specified herein, the Option shall terminate.

     7.   Disability of Optionee.  Notwithstanding the provisions of Section 6
          ----------------------
above, in the event of termination of an Optionee's Continuous Status as an
Employee or Consultant as a result of his or her Disability, Optionee may, but
only within twelve (12) months from the date of such
<PAGE>

termination (and in no event later than the expiration date of the term of such
Option as set forth in the Notice of Grant) exercise the Option to the extent
otherwise entitled to exercise it at the date of such termination. To the extent
that Optionee is not entitled to exercise the Option at the date of termination,
or if Optionee does not exercise such Option to the extent so entitled within
the time specified herein, the Option shall terminate, and the Shares covered by
such Option shall revert to the Plan.

     8.   Death of Optionee.  In the event of termination of Optionee's
          -----------------
Continuous Status as an Employee or Consultant as a result of the death of
Optionee, the Option may be exercised at any time within twelve (12) months
following the date of death (but in no event later than the date of expiration
of the term of this Option as set forth in Section 10 below), by Optionee's
estate or by a person who acquired the right to exercise the Option by bequest
or inheritance, but only to the extent the Optionee could exercise the Option at
the date of death.

     9.   Non-Transferability of Option.  This Option may not be transferred in
          -----------------------------
any manner otherwise than by will or by the laws of descent or distribution and
may be exercised during the lifetime of Optionee only by Optionee. The terms of
this Option shall be binding upon the executors, administrators, heirs,
successors and assigns of the Optionee.

     10.  Term of Option.  This Option may be exercised only within the term set
          --------------
out in the Notice of Grant, and may be exercised during such term only in
accordance with the Plan and the terms of this Option. The limitations set out
in Section 7 of the Plan regarding Options designated as Incentive Stock Options
and Options granted to more than ten percent (10%) shareholders shall apply to
this Option.

     11.  Tax Consequences.  Set forth below is a brief summary as of the date
          ----------------
of this Option of some of the federal tax consequences of exercise of this
Option and disposition of the Shares. THIS SUMMARY IS NECESSARILY INCOMPLETE,
AND THE TAX LAWS AND REGULATIONS ARE SUBJECT TO CHANGE. OPTIONEE SHOULD CONSULT
A TAX ADVISER BEFORE EXERCISING THIS OPTION OR DISPOSING OF THE SHARES.

          (a)  Exercise of an ISO.  If this Option qualifies as an ISO, there
               ------------------
will be no regular federal income tax liability upon the exercise of the Option,
although the excess, if any, of the Fair Market Value of the Shares on the date
of exercise over the Exercise Price will be treated as an adjustment to the
alternative minimum tax for federal tax purposes and may subject the Optionee to
the alternative minimum tax in the year of exercise.

          (b)  Exercise of an NSO.  There may be a regular federal income tax
               ------------------
liability upon the exercise of an NSO. The Optionee will be treated as having
received compensation income (taxable at ordinary income tax rates) equal to the
excess, if any, of the Fair Market Value of the Shares on the date of exercise
over the Exercise Price. If Optionee is an Employee, the Company will be
required to withhold from Optionee's compensation or collect from Optionee and
pay to the applicable taxing authorities an amount equal to a percentage of this
compensation income at the time of exercise.
<PAGE>

          (c)  Disposition of Shares.  In the case of an NSO, if Shares are held
               ---------------------
for at least one year, any gain realized on disposition of the Shares will be
treated as long-term capital gain for federal income tax purposes. In the case
of an ISO, if Shares transferred pursuant to the Option are held for at least
one year after exercise and are disposed of at least two years after the Date of
Grant, any gain realized on disposition of the Shares will also be treated as
long-term capital gain for federal income tax purposes. If Shares purchased
under an ISO are disposed of within such one-year period or within two years
after the Date of Grant, any gain realized on such disposition will be treated
as compensation income (taxable at ordinary income rates) to the extent of the
difference between the Exercise Price and the lesser of (i) the Fair Market
Value of the Shares on the date of exercise, or (ii) the sale price of the
Shares.

          (d)  Notice of Disqualifying Disposition of ISO Shares.  If the Option
               -------------------------------------------------
granted to Optionee herein is an ISO, and if Optionee sells or otherwise
disposes of any of the Shares acquired pursuant to the ISO on or before the
later of (i) the date two years after the Date of Grant, or (ii) the date one
year after the date of exercise, the Optionee shall immediately notify the
Company in writing of such disposition. Optionee agrees that Optionee may be
subject to income tax withholding by the Company on the compensation income
recognized by the Optionee.

                                             ANNUNCIO SOFTWARE, INC.

                                             By: _____________________________
<PAGE>

OPTIONEE ACKNOWLEDGES AND AGREES THAT THE VESTING OF SHARES PURSUANT TO THE
OPTION HEREOF IS EARNED ONLY BY CONTINUING CONSULTANCY OR EMPLOYMENT AT THE WILL
OF THE COMPANY (NOT THROUGH THE ACT OF BEING HIRED, BEING GRANTED THIS OPTION OR
ACQUIRING SHARES HEREUNDER). OPTIONEE FURTHER ACKNOWLEDGES AND AGREES THAT
NOTHING IN THIS AGREEMENT, NOR IN THE COMPANY'S 1997 STOCK OPTION PLAN WHICH IS
INCORPORATED HEREIN BY REFERENCE, SHALL CONFER UPON OPTIONEE ANY RIGHT WITH
RESPECT TO CONTINUATION OF EMPLOYMENT OR CONSULTANCY BY THE COMPANY, NOR SHALL
IT INTERFERE IN ANY WAY WITH OPTIONEE'S RIGHT OR THE COMPANY'S RIGHT TO
TERMINATE OPTIONEE'S EMPLOYMENT OR CONSULTANCY AT ANY TIME, WITH OR WITHOUT
CAUSE.

     Optionee acknowledges receipt of a copy of the Plan and represents that he
is familiar with the terms and provisions thereof, and hereby accepts this
Option subject to all of the terms and provisions thereof. Optionee has reviewed
the Plan and this Option in their entirety, has had an opportunity to obtain the
advice of counsel prior to executing this Option and fully understands all
provisions of the Option. Optionee hereby agrees to accept as binding,
conclusive and final all decisions or interpretations of the Administrator upon
any questions arising under the Plan or this Option. Optionee further agrees to
notify the Company upon any change in the residence address indicated below.

Dated: _______________________               ___________________________________
                                             Optionee

                                             Residence Address

                                             ___________________________________

<PAGE>

                                   EXHIBIT A

                            ANNUNCIO SOFTWARE, INC.

                            1997 STOCK OPTION PLAN

                                EXERCISE NOTICE

Annuncio Software, Inc.
2440 West El Camino Real
Mountain View, CA 94040
Attention: Secretary

     1.   Exercise of Option.  Effective as of today, __________________,
          ------------------
_______, the undersigned (the "OPTIONEE") hereby elects to exercise Optionee's
option to purchase ______________ shares of the Common Stock (the "SHARES") of
Annuncio Software, Inc. (the "COMPANY") under and pursuant to the 1997 Stock
Option Plan, as amended (the "PLAN") and the [ ] Incentive [ ] Nonstatutory
Stock Option Agreement dated __________________, _______ (the "OPTION
AGREEMENT").

     2.   Delivery of Payment.  Optionee herewith delivers to the Company the
          -------------------
full Exercise Price for the Shares, as set forth in the Option Agreement.

     3.   Representations of Optionee.  Optionee acknowledges that Optionee has
          ---------------------------
received, read and understood the Plan and the Option Agreement and agrees to
abide by and be bound by their terms and conditions.

     4.   Rights as Shareholder.  Until the issuance of the Shares (as evidenced
          ---------------------
by the appropriate entry on the books of the Company or of a duly authorized
transfer agent of the Company), no right to vote or receive dividends or any
other rights as a shareholder shall exist with respect to the Optioned Stock,
notwithstanding the exercise of the Option. The Shares shall be issued to the
Optionee as soon as practicable after the Option is exercised. No adjustment
shall be made for a dividend or other right for which the record date is prior
to the date of issuance except as provided in Section 12 of the Plan.

     5.   Company's Right of First Refusal.  Before any Shares held by Optionee
          --------------------------------
or any transferee (either being sometimes referred to herein as the "HOLDER")
may be sold or otherwise transferred (including transfer by gift or operation of
law), the Company or its assignee(s) shall have a right of first refusal to
purchase the Shares on the terms and conditions set forth in this Section (the
"RIGHT OF FIRST REFUSAL").

          (a)  Notice of Proposed Transfer.  The Holder of the Shares shall
               ---------------------------
deliver to the Company a written notice (the "NOTICE") stating: (i) the Holder's
bona fide intention to sell or otherwise transfer such Shares; (ii) the name of
each proposed purchaser or other transferee (the "PROPOSED TRANSFEREE"); (iii)
the number of Shares to be transferred to each Proposed Transferee;
<PAGE>

and (iv) the bona fide cash price or other consideration for which the Holder
proposes to transfer the Shares (the "OFFERED PRICE"), and the Holder shall
offer the Shares at the Offered Price to the Company or its assignee(s).

          (b)  Exercise of Right of First Refusal.  At any time within thirty
          -----------------------------------
(30) days after receipt of the Notice, the Company and/or its assignee(s) may,
by giving written notice to the Holder, elect to purchase all, but not less than
all, of the Shares proposed to be transferred to any one or more of the Proposed
Transferees, at the purchase price determined in accordance with subsection (c)
below.

          (c)  Purchase Price.  The purchase price (the "PURCHASE PRICE") for
               --------------
the Shares purchased by the Company or its assignee(s) under this Section shall
be the Offered Price. If the Offered Price includes consideration other than
cash, the cash equivalent value of the non-cash consideration shall be
determined by the Board of Directors of the Company in good faith.

          (d)  Payment.  Payment of the Purchase Price shall be made, at the
               -------
option of the Company or its assignee(s), in cash (by check), by cancellation of
all or a portion of any outstanding indebtedness of the Holder to the Company
(or, in the case of repurchase by an assignee, to the assignee), or by any
combination thereof within thirty (30) days after receipt of the Notice or in
the manner and at the times set forth in the Notice.

          (e)  Holder's Right to Transfer.  If all of the Shares proposed in the
               --------------------------
Notice to be transferred to a given Proposed Transferee are not purchased by the
Company and/or its assignee(s) as provided in this Section, then the Holder may
sell or otherwise transfer such Shares to that Proposed Transferee at the
Offered Price or at a higher price, provided that such sale or other transfer is
consummated within 120 days after the date of the Notice, that any such sale or
other transfer is effected in accordance with any applicable securities laws and
that the Proposed Transferee agrees in writing that the provisions of this
Section shall continue to apply to the Shares in the hands of such Proposed
Transferee. If the Shares described in the Notice are not transferred to the
Proposed Transferee within such period, a new Notice shall be given to the
Company, and the Company and/or its assignees shall again be offered the Right
of First Refusal before any Shares held by the Holder may be sold or otherwise
transferred.

          (f)  Exception for Certain Family Transfers.  Anything to the contrary
               --------------------------------------
contained in this Section notwithstanding, the transfer of any or all of the
Shares during the Optionee's lifetime or on the Optionee's death by will or
intestacy to the Optionee's immediate family or a trust for the benefit of the
Optionee's immediate family shall be exempt from the provisions of this Section.
"Immediate Family" as used herein shall mean spouse, lineal descendant or
antecedent, father, mother, brother or sister. In such case, the transferee or
other recipient shall receive and hold the Shares so transferred subject to the
provisions of this Section, and there shall be no further transfer of such
Shares except in accordance with the terms of this Section.

          (g)  Termination of Right of First Refusal.  The Right of First
               -------------------------------------
Refusal shall terminate as to any Shares upon the first sale of Common Stock of
the Company to the general public
<PAGE>

pursuant to a registration statement filed with and declared effective by the
Securities and Exchange Commission under the Securities Act of 1933, as amended.

     6.   Tax Consultation.  Optionee understands that Optionee may suffer
          ----------------
adverse tax consequences as a result of Optionee's purchase or disposition of
the Shares. Optionee represents that Optionee has consulted with any tax
consultants Optionee deems advisable in connection with the purchase or
disposition of the Shares and that Optionee is not relying on the Company for
any tax advice.

     7.   Restrictive Legends and Stop-Transfer Orders.
          --------------------------------------------

          (a). Legends.  Optionee understands and agrees that the Company shall
               -------
cause the legends set forth below or legends substantially equivalent
thereto, to be placed upon any certificate(s) evidencing ownership of the Shares
together with any other legends that may be required by the Company or by state
or federal securities laws:

          THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED
          UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "ACT") AND
          MAY NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED, PLEDGED
          OR HYPOTHECATED UNLESS AND UNTIL REGISTERED UNDER THE ACT
          OR, IN THE OPINION OF COMPANY COUNSEL SATISFACTORY TO THE
          ISSUER OF THESE SECURITIES, SUCH OFFER, SALE OR TRANSFER,
          PLEDGE OR HYPOTHECATION IS IN COMPLIANCE THEREWITH.

          THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO
          CERTAIN RESTRICTIONS ON TRANSFER AND RIGHT OF FIRST REFUSAL
          OPTIONS HELD BY THE ISSUER OR ITS ASSIGNEE(S) AS SET FORTH
          IN THE EXERCISE NOTICE BETWEEN THE ISSUER AND THE ORIGINAL
          HOLDER OF THESE SHARES, A COPY OF WHICH MAY BE OBTAINED AT
          THE PRINCIPAL OFFICE OF THE ISSUER. SUCH TRANSFER
          RESTRICTIONS AND RIGHT OF FIRST REFUSAL ARE BINDING ON
          TRANSFEREES OF THESE SHARES.

          (b). Stop-Transfer Notices.  Optionee agrees that, in order to ensure
               ---------------------
compliance with the restrictions referred to herein, the Company may issue
appropriate "stop transfer" instructions to its transfer agent, if any, and
that, if the Company transfers its own securities, it may make appropriate
notations to the same effect in its own records.

          (c). Refusal to Transfer.  The Company shall not be required (i) to
               -------------------
transfer on its books any Shares that have been sold or otherwise transferred in
violation of any of the provisions of this Agreement or (ii) to treat as owner
of such Shares or to accord the right to vote or pay dividends to any purchaser
or other transferee to whom such Shares shall have been so transferred.
<PAGE>

     8.   Successors and Assigns.  The Company may assign any of its rights
          ----------------------
under this Agreement to single or multiple assignees, and this Agreement shall
inure to the benefit of the successors and assigns of the Company. Subject to
the restrictions on transfer herein set forth, this Agreement shall be binding
upon Optionee and his or her heirs, executors, administrators, successors and
assigns.

     9.   Interpretation.  Any dispute regarding the interpretation of this
          --------------
Agreement shall be submitted by Optionee or by the Company forthwith to the
Administrator which shall review such dispute at its next regular meeting. The
resolution of such a dispute by the Administrator shall be final and binding on
all parties.

     10.  Governing Law; Severability.  This Agreement is governed by the
          ----------------------------
internal substantive laws, but not the choice of law rules, of California.

     11.  Entire Agreement.  The Plan, and the Option Agreement (including the
          ----------------
Notice of Grant) are incorporated herein by reference. This Notice, the Plan,
the Restricted Stock Purchase Agreement, the Option Agreement (including the
Notice of Grant) and the Investment Representation Statement constitute the
entire agreement of the parties with respect to the subject matter hereof and
supersede in their entirety all prior undertakings and agreements of the Company
and Optionee with respect to the subject matter hereof, and may not be modified
adversely to the Optionee's interest except by means of a writing signed by the
Company and Optionee.

     OPTIONEE:                               ANNUNCIO SOFTWARE, INC.

     ________________________________        ________________________________
     Signature                               By

     ________________________________        ________________________________
     Print Name                              Title

     _______________________________         2440 West El Camino Real, Suite 300
                                             Mountain View, CA 94040

     ________________________________
     Residence Address
                                             ________________________________
                                             Date Received
<PAGE>

                                   EXHIBIT B
                                   ---------
                            ANNUNCIO SOFTWARE, INC.

                            1997 STOCK OPTION PLAN

                      INVESTMENT REPRESENTATION STATEMENT

     OPTIONEE   :

     COMPANY    :  ANNUNCIO SOFTWARE, INC.

     SECURITY   :  COMMON STOCK

     AMOUNT     :

     DATE       :

In connection with the purchase of the above-listed Securities, the undersigned
Optionee represents to the Company the following:

     1.   Optionee is aware of the Company's business affairs and financial
condition and has acquired sufficient information about the Company to reach an
informed and knowledgeable decision to acquire the Securities. Optionee is
acquiring these Securities for investment for Optionee's own account only and
not with a view to, or for resale in connection with, any "distribution" thereof
within the meaning of the Securities Act of 1933, as amended (the "SECURITIES
ACT").

     2.   Optionee acknowledges and understands that the Securities constitute
"restricted securities" under the Securities Act and have not been registered
under the Securities Act in reliance upon a specific exemption therefrom, which
exemption depends upon, among other things, the bona fide nature of Optionee's
investment intent as expressed herein. In this connection, Optionee understands
that, in the view of the Securities and Exchange Commission, the statutory basis
for such exemption may be unavailable if Optionee's representation was
predicated solely upon a present intention to hold these Securities for the
minimum capital gains period specified under tax statutes, for a deferred sale,
for or until an increase or decrease in the market price of the Securities, or
for a period of one year or any other fixed period in the future. Optionee
further understands that the Securities must be held indefinitely unless they
are subsequently registered under the Securities Act or an exemption from such
registration is available. Optionee further acknowledges and understands that
the Company is under no obligation to register the Securities. Optionee
understands that the certificate evidencing the Securities will be imprinted
with a legend which prohibits the transfer of the Securities unless they are
registered or such registration is not required in the opinion of counsel
satisfactory to the Company and any other legend required under applicable state
securities laws.
<PAGE>

     3.   Optionee is familiar with the provisions of Rule 701 and Rule 144,
each promulgated under the Securities Act, which, in substance, permit limited
public resale of "restricted securities" acquired, directly or indirectly from
the issuer thereof, in a non-public offering subject to the satisfaction of
certain conditions. Rule 701 provides that if the issuer qualifies under Rule
701 at the time of the grant of the Option to the Optionee, the exercise will be
exempt from registration under the Securities Act. In the event the Company
becomes subject to the reporting requirements of Section 13 or 15(d) of the
Securities Exchange Act of 1934, as amended (the "EXCHANGE ACT"), ninety (90)
days thereafter (or such longer period as any market stand-off agreement may
require) the Securities exempt under Rule 701 may be resold, subject to the
satisfaction of certain of the conditions specified by Rule 144, including: (1)
the resale being made through a broker in an unsolicited "broker's transaction"
or in transactions directly with a market maker (as said term is defined under
the Exchange Act); and, in the case of an affiliate, (2) the availability of
certain public information about the Company, (3) the amount of Securities being
sold during any three month period not exceeding the limitations specified in
Rule 144(e), and (4) the timely filing of a Form 144, if applicable.

     In the event that the Company does not qualify under Rule 701 at the time
of grant of the Option, then the Securities may be resold in certain limited
circumstances subject to the provisions of Rule 144, which requires the resale
to occur not less than one year after the later of the date the Securities were
sold by the Company or the date the Securities were sold by an affiliate of the
Company, within the meaning of Rule 144; and, in the case of acquisition of the
Securities by an affiliate, or by a non-affiliate who subsequently holds the
Securities less than two years, the satisfaction of the conditions set forth in
sections (1), (2), (3) and (4) of the paragraph immediately above.

     4.   Optionee hereby agrees that if so requested by the Company or any
representative of the underwriters (the "MANAGING UNDERWRITER") in connection
with any registration of the offering of any securities of the Company under the
Securities Act, Optionee shall not sell or otherwise transfer any Shares or
other securities of the Company during the 180-day period (or such longer period
of time as may be requested in writing by the Managing Underwriter and agreed to
in writing by the Company) (the "MARKET STANDOFF PERIOD") following the
effective date of a registration statement of the Company filed under the
Securities Act; provided, however, that such restriction shall only apply to the
first registration statement of the Company to become effective under the
Securities Act which include securities to be sold on behalf of the Company to
the public in an underwritten public offering under the Securities Act. The
Company may impose stop-transfer instructions with respect to securities subject
to the foregoing restrictions until the end of such Market Standoff Period.

     5.   Optionee further understands that in the event all of the applicable
requirements of Rule 701 or 144 are not satisfied, registration under the
Securities Act, compliance with Regulation A, or some other registration
exemption will be required; and that, notwithstanding the fact that Rules 144
and 701 are not exclusive, the Staff of the Securities and Exchange Commission
has expressed its opinion that persons proposing to sell private placement
securities other than in a registered offering and otherwise than pursuant to
Rules 144 or 701 will have a substantial burden of proof in establishing that an
exemption from registration is available for such offers or sales, and that
<PAGE>

     such persons and their respective brokers who participate in such
transactions do so at their own risk. Optionee understands that no assurances
can be given that any such other registration exemption will be available in
such event.

                                             Signature of Optionee:

                                             ___________________________________

                                             ___________________________________
                                             Printed Name

                                             ___________________________________
                                             Date
<PAGE>

                            ANNUNCIO SOFTWARE, INC.

                            1997 STOCK OPTION PLAN

                      RESTRICTED STOCK PURCHASE AGREEMENT

     THIS AGREEMENT is made between ____________________________________ (the
"PURCHASER") and Annuncio Software, Inc. (the "COMPANY") as of
__________________, ______.

                                   RECITALS
                                   --------

     A.   Pursuant to the exercise of the stock option granted to Purchaser
under the Company's 1997 Stock Option Plan (the "PLAN") and pursuant to the
Option Agreement (the "OPTION AGREEMENT") dated __________________, ______ by
and between the Company and Purchaser with respect to such grant, which Plan and
Option Agreement are hereby incorporated by reference, Purchaser has elected to
purchase ______________ of those shares which have not become vested under the
vesting schedule set forth in the Option Agreement (the "UNVESTED SHARES"). The
Unvested Shares and the shares subject to the Option Agreement which have become
vested are sometimes collectively referred to herein as the "SHARES". Unless
otherwise defined herein, the terms defined in the Plan shall have the same
defined meanings in this Agreement.

     B.   As a condition to Purchaser's election to exercise the option,
Purchaser must execute this Restricted Stock Purchase Agreement, which sets
forth the rights and obligations of the parties with respect to Shares acquired
upon exercise of the Option.

     1.   Repurchase Option.
          -----------------

             (a)  If Purchaser's status as a Service Provider is terminated for
any reason, including for cause, death, and disability, the Company shall have
the right and option to purchase from Purchaser, or Purchaser's personal
representative, as the case may be, all of the Purchaser's Unvested Shares as of
the date of such termination at the price paid by the Purchaser for such Shares
(the "REPURCHASE OPTION").

             (b)  Upon the occurrence of a termination, the Company may exercise
its Repurchase Option by delivering personally or by registered mail, to
Purchaser (or to Purchaser's transferee or legal representative, as the case may
be), within ninety (90) days of the termination, a notice in writing indicating
the Company's intention to exercise the Repurchase Option and setting forth a
date for closing not later than thirty (30) days from the mailing of such
notice. The closing shall take place at the Company's office.  At the closing,
the holder of the certificates for the Unvested Shares being transferred shall
deliver the stock certificate or certificates evidencing the Unvested Shares,
and the Company shall deliver the purchase price therefor.

             (c)  At its option, the Company may elect to make payment for the
Unvested Shares to a bank selected by the Company. The Company shall avail
itself of this option by a notice in writing
<PAGE>

to Purchaser stating the name and address of the bank, date of closing, and
waiving the closing at the Company's office.

             (d)  If the Company does not elect to exercise the Repurchase
Option conferred above by giving the requisite notice within ninety (90) days
following the termination, the Repurchase Option shall terminate.

             (e)  The Repurchase Option shall terminate in accordance with the
Vesting Schedule in Optionee's Option Agreement.

     2.   Transferability of the Shares; Escrow.
          -------------------------------------

             (f)  Purchaser hereby authorizes and directs the Secretary of the
Company, or such other person designated by the Company, to transfer the
Unvested Shares as to which the Repurchase Option has been exercised from
Purchaser to the Company.

             (g)  To insure the availability for delivery of Purchaser's
Unvested Shares upon repurchase by the Company pursuant to the Repurchase Option
under Section 1, Purchaser hereby appoints the Secretary, or any other person
designated by the Company as escrow agent, as its attorney-in-fact to sell,
assign and transfer unto the Company, such Unvested Shares, if any, repurchased
by the Company pursuant to the Repurchase Option and shall, upon execution of
this Agreement, deliver and deposit with the secretary of the Company, or such
other person designated by the Company, the share certificates representing the
Unvested Shares, together with the stock assignment duly endorsed in blank,
attached hereto as Attachment 1. The Unvested Shares and stock assignment shall
                   ------------
be held by the secretary in escrow, pursuant to the Joint Escrow Instructions of
the Company and Purchaser attached as Attachment 2 hereto, until the Company
                                      ------------
exercises its purchase right as provided in Section 1, until such Unvested
Shares are vested, or until such time as this Agreement no longer is in effect.
As a further condition to the Company's obligations under this Agreement, the
spouse of the Purchaser, if any, shall execute and deliver to the Company the
Consent of Spouse attached hereto as Attachment 3.
                                     ------------

Upon vesting of the Unvested Shares, the escrow agent shall promptly deliver to
the Purchaser the certificate or certificates representing such Shares in the
escrow agent's possession belonging to the Purchaser, and the escrow agent shall
be discharged of all further obligations hereunder; provided, however, that the
escrow agent shall nevertheless retain such certificate or certificates as
escrow agent if so required pursuant to other restrictions imposed pursuant to
this Agreement.

             (h)  The Company, or its designee, shall not be liable for any act
it may do or omit to do with respect to holding the Shares in escrow and while
acting in good faith and in the exercise of its judgment.

             (i)  Transfer or sale of the Shares is subject to restrictions on
transfer imposed by any applicable state and federal securities laws.  Any
transferee shall hold such Shares subject to all the provisions hereof and the
Exercise Notice executed by the Purchaser with respect to any Unvested Shares
purchased by Purchaser and shall acknowledge the same by signing a copy of this
Agreement.
<PAGE>

     3.   Ownership, Voting Rights, Duties.  This Agreement shall not affect in
          --------------------------------
any way the ownership, voting rights or other rights or duties of Purchaser,
except as specifically provided herein.

     4.   Legends.  The share certificate evidencing the Shares issued hereunder
          -------
shall be endorsed with substantially the following legend (in addition to any
legend required under applicable state securities laws):

          THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO
          CERTAIN RESTRICTIONS UPON TRANSFER AND RIGHTS OF REPURCHASE
          AS SET FORTH IN AN AGREEMENT BETWEEN THE COMPANY AND THE
          SHAREHOLDER, A COPY OF WHICH IS ON FILE WITH THE SECRETARY
          OF THE COMPANY.

     5.   Adjustment for Stock Split.  All references to the number of Shares
          --------------------------
and the purchase price of the Shares in this Agreement shall be appropriately
adjusted to reflect any stock split, stock dividend or other change in the
Shares which may be made by the Company after the date of this Agreement.

     6.   Notices.  Notices required hereunder shall be given in person or by
          -------
registered mail to the address of Purchaser shown on the records of the Company,
and to the Company at its principal executive offices.

     7.   Survival of Terms.  This Agreement shall apply to and bind Purchaser
          -----------------
and the Company and their respective permitted assignees and transferees, heirs,
legatees, executors, administrators and legal successors.

     8.   Section 83(b) Election.  Purchaser hereby acknowledges that he or she
          ----------------------
has been informed that, with respect to the exercise of an Option for unvested
Shares, an election may be filed by the Purchaser with the Internal Revenue
                                                           ----------------
Service, within thirty (30) days of the purchase of the Shares, electing
-------
pursuant to Section 83(b) of the Code to be taxed currently on any difference
between the purchase price of the Shares and their Fair Market Value on the date
of purchase. In the case of a Nonstatutory Stock Option, this will result in a
recognition of taxable income to the Purchaser on the date of exercise, measured
by the excess, if any, of the fair market value of the Shares, at the time the
Option is exercised over the purchase price for the Shares. Absent such an
election, taxable income will be measured and recognized by Purchaser at the
time or times on which the Company's Repurchase Option lapses. In the case of an
Incentive Stock Option, such an election will result in a recognition of income
to the Purchaser for alternative minimum tax purposes on the date of exercise,
measured by the excess, if any, of the fair market value of the Shares, at the
time the option is exercised, over the purchase price for the Shares. Absent
such an election, alternative minimum taxable income will be measured and
recognized by Purchaser at the time or times on which the Company's Repurchase
Option lapses. Purchaser is strongly encouraged to seek the advice of his or her
own tax consultants in connection with the purchase of the Shares and the
advisability of filing of the Election under Section 83(b) of the Code. A form
of Election under Section 83(b) is attached hereto as Attachment 4 for
                                                      ------------
reference.

<PAGE>

PURCHASER ACKNOWLEDGES THAT IT IS PURCHASER'S SOLE RESPONSIBILITY AND NOT THE
COMPANY'S TO FILE TIMELY THE ELECTION UNDER SECTION 83(b), EVEN IF PURCHASER
REQUESTS THE COMPANY OR ITS REPRESENTATIVE TO MAKE THIS FILING ON PURCHASER'S
BEHALF.

     9.   Representations.  Purchaser has reviewed with his or her own tax
          ---------------
advisors the federal, state, local and foreign tax consequences of this
investment and the transactions contemplated by this Agreement. Purchaser is
relying solely on such advisors and not on any statements or representations of
the Company or any of its agents. Purchaser understands that he or she (and not
the Company) shall be responsible for his or her own tax liability that may
arise as a result of this investment or the transactions contemplated by this
Agreement.

     10.  Governing Law.  This Agreement shall be governed by the internal
          -------------
substantive laws, but not the choice of law rules, of California.

     Purchaser represents that he has read this Agreement and is familiar with
its terms and provisions. Purchaser hereby agrees to accept as binding,
conclusive and final all decisions or interpretations of the Board upon any
questions arising under this Agreement.

     IN WITNESS WHEREOF, this Agreement is deemed made as of the date first set
forth above.

PURCHASER:                              ANNUNCIO SOFTWARE, INC.

_________________________________       _________________________________
Signature                               By

_________________________________       _________________________________
Print Name                              Title

_________________________________

_________________________________
Residence Address

_________________________________
Soc. Sec. No.
<PAGE>

                                 ATTACHMENT 1
                                 ------------

                     ASSIGNMENT SEPARATE FROM CERTIFICATE

     FOR VALUE RECEIVED I, __________________________, hereby sell, assign and
transfer unto Annuncio Software, Inc. _______________________ (__________)
shares of the Common Stock of Annuncio Software, Inc. standing in my name on the
books of said corporation represented by Certificate No(s). _______ herewith and
do hereby irrevocably constitute and appoint _______________________________ to
transfer the said stock on the books of the within named corporation with full
power of substitution in the premises.

     This Stock Assignment may be used only in accordance with the Restricted
Stock Purchase Agreement between Annuncio Software, Inc. and the undersigned
dated _________________, _______.

     Dated: ______________________

                                        Signature: ____________________________

     INSTRUCTIONS:  Please do not fill in any blanks other than the signature
line. The purpose of this assignment is to enable the Company to exercise its
"repurchase option," as set forth in the Agreement, without requiring additional
signatures on the part of the Purchaser.
<PAGE>

                                 ATTACHMENT 2
                                 ------------

                           JOINT ESCROW INSTRUCTIONS

                           _________________,______

Corporate Secretary
Annuncio Software, Inc.
2440 West El Camino Real
Mountain View, CA 94040

Dear _________________:

     As Escrow Agent for both Annuncio Software, Inc. (the "COMPANY"), and the
undersigned purchaser of stock of the Company (the "PURCHASER"), you are hereby
authorized and directed to hold the documents delivered to you pursuant to the
terms of that certain Restricted Stock Purchase Agreement (the "AGREEMENT")
between the Company and the undersigned, in accordance with the following
instructions:

     1.   In the event the Company and/or any assignee of the Company (referred
to collectively for convenience herein as the "COMPANY") exercises the Company's
repurchase option set forth in the Agreement, the Company shall give to
Purchaser and you a written notice specifying the number of shares of stock to
be purchased, the purchase price, and the time for a closing hereunder at the
principal office of the Company. Purchaser and the Company hereby irrevocably
authorize and direct you to close the transaction contemplated by such notice in
accordance with the terms of said notice.

     2.   At the closing, you are directed (a) to date the stock assignments
necessary for the transfer in question, (b) to fill in the number of shares
being transferred, and (c) to deliver same, together with the certificate
evidencing the shares of stock to be transferred, to the Company or its
assignee, against the simultaneous delivery to you of the purchase price (by
cash, a check, or some combination thereof) for the number of shares of stock
being purchased pursuant to the exercise of the Company's repurchase option.

     3.   Purchaser irrevocably authorizes the Company to deposit with you any
certificates evidencing shares of stock to be held by you hereunder and any
additions and substitutions to said shares as defined in the Agreement.
Purchaser does hereby irrevocably constitute and appoint you as Purchaser's
attorney-in-fact and agent for the term of this escrow to execute with respect
to such securities all documents necessary or appropriate to make such
securities negotiable and to complete any transaction herein contemplated,
including but not limited to the filing with any applicable state blue sky
authority of any required applications for consent to, or notice of transfer of,
the securities. Subject to the provisions of this paragraph 3, Purchaser shall
exercise all rights and privileges of a stockholder of the Company while the
stock is held by you.
<PAGE>

     4.   Upon written request of the Purchaser, but no more than once per
calendar year, unless the Company's repurchase option has been exercised, you
will deliver to Purchaser a certificate or certificates representing so many
shares of stock as are not then subject to the Company's repurchase option.
Within 120 days after cessation of Purchaser's continuous employment by or
services to the Company, or any parent or subsidiary of the Company, you will
deliver to Purchaser a certificate or certificates representing the aggregate
number of shares held or issued pursuant to the Agreement and not purchased by
the Company or its assignees pursuant to exercise of the Company's repurchase
option.

     5.   If at the time of termination of this escrow you should have in your
possession any documents, securities, or other property belonging to Purchaser,
you shall deliver all of the same to Purchaser and shall be discharged of all
further obligations hereunder.

     6.   Your duties hereunder may be altered, amended, modified or revoked
only by a writing signed by all of the parties hereto.

     7.   You shall be obligated only for the performance of such duties as are
specifically set forth herein and may rely and shall be protected in relying or
refraining from acting on any instrument reasonably believed by you to be
genuine and to have been signed or presented by the proper party or parties.
You shall not be personally liable for any act you may do or omit to do
hereunder as Escrow Agent or as attorney-in-fact for Purchaser while acting in
good faith, and any act done or omitted by you pursuant to the advice of your
own attorneys shall be conclusive evidence of such good faith.

     8.   You are hereby expressly authorized to disregard any and all warnings
given by any of the parties hereto or by any other person or corporation,
excepting only orders or process of courts of law and are hereby expressly
authorized to comply with and obey orders, judgments or decrees of any court.
In case you obey or comply with any such order, judgment or decree, you shall
not be liable to any of the parties hereto or to any other person, firm or
corporation by reason of such compliance, notwithstanding any such order,
judgment or decree being subsequently reversed, modified, annulled, set aside,
vacated or found to have been entered without jurisdiction.

     9.   You shall not be liable in any respect on account of the identity,
authorities or rights of the parties executing or delivering or purporting to
execute or deliver the Agreement or any documents or papers deposited or called
for hereunder.

     10.  You shall not be liable for the outlawing of any rights under the
Statute of Limitations with respect to these Joint Escrow Instructions or any
documents deposited with you.

     11.  You shall be entitled to employ such legal counsel and other experts
as you may deem necessary properly to advise you in connection with your
obligations hereunder, may rely upon the advice of such counsel, and may pay
such counsel reasonable compensation therefor.

     12.  Your responsibilities as Escrow Agent hereunder shall terminate if you
shall cease to be an officer or agent of the Company or if you shall resign by
written notice to each party. In the event of any such termination, the Company
shall appoint a successor Escrow Agent.
<PAGE>

     13.  If you reasonably require other or further instruments in connection
with these Joint Escrow Instructions or obligations in respect hereto, the
necessary parties hereto shall join in furnishing such instruments.

     14.  It is understood and agreed that should any dispute arise with respect
to the delivery and/or ownership or right of possession of the securities held
by you hereunder, you are authorized and directed to retain in your possession
without liability to anyone all or any part of said securities until such
disputes shall have been settled either by mutual written agreement of the
parties concerned or by a final order, decree or judgment of a court of
competent jurisdiction after the time for appeal has expired and no appeal has
been perfected, but you shall be under no duty whatsoever to institute or defend
any such proceedings.

     16.  Any notice required or permitted hereunder shall be given in writing
and shall be deemed effectively given upon personal delivery or upon deposit in
the United States Post Office, by registered or certified mail with postage and
fees prepaid, addressed to each of the other parties thereunto entitled at the
following addresses or at such other addresses as a party may designate by ten
days' advance written notice to each of the other parties hereto.

          COMPANY:                 Annuncio Software, Inc.
                                   2440 West El Camino Real, Suite 300
                                   Mountain View, CA 94040

          PURCHASER:               __________________________
                                   __________________________
                                   __________________________

          ESCROW AGENT:            Corporate Secretary
                                   Annuncio Software, Inc.
                                   2440 West El Camino Real, Suite 300
                                   Mountain View, CA 94040

     16.  By signing these Joint Escrow Instructions, you become a party hereto
only for the purpose of said Joint Escrow Instructions; you do not become a
party to the Agreement.

     17.  This instrument shall be binding upon and inure to the benefit of the
parties hereto, and their respective successors and permitted assigns.

     18.  These Joint Escrow Instructions shall be governed by the internal
substantive laws, but not the choice of law rules, of California.
<PAGE>

                                        ANNUNCIO SOFTWARE, INC.

                                        By:  ___________________________________
                                                          (signature)

                                        Name:  _________________________________
                                                         (please print)

                                        Title: _________________________________

                                        PURCHASER:

                                        ________________________________________
                                        Signature

                                        ________________________________________
                                        Printed Name

                                        ESCROW AGENT

                                        ________________________________________
                                        Corporate Secretary
<PAGE>

                                 ATTACHMENT 3
                                 ------------

                               CONSENT OF SPOUSE

     I, ____________________, spouse of ___________________, have read and
approve the foregoing Agreement. In consideration of granting of the right to my
spouse to purchase shares of Annuncio Software, Inc., as set forth in the
Agreement, I hereby appoint my spouse as my attorney-in-fact in respect to the
exercise of any rights under the Agreement and agree to be bound by the
provisions of the Agreement insofar as I may have any rights in said Agreement
or any shares issued pursuant thereto under the community property laws or
similar laws relating to marital property in effect in the state of our
residence as of the date of the signing of the foregoing Agreement.

     Dated: ______________________

                                   Signature: _________________________
<PAGE>

                                 ATTACHMENT 4
                                 ------------

                         ELECTION UNDER SECTION 83(b)
                         ----------------------------
                     OF THE INTERNAL REVENUE CODE OF 1986
                     ------------------------------------

     The undersigned taxpayer hereby elects, pursuant to Sections 55 and 83(b)
of the Internal Revenue Code of 1986, as amended, to include in taxpayer's gross
income or alternative minimum taxable income, as the case may be, for the
current taxable year the amount of any compensation taxable to taxpayer in
connection with taxpayer's receipt of the property described below:

1.   The name, address, taxpayer identification number and taxable year of the
     undersigned are as follows:

     NAME:                         TAXPAYER:             SPOUSE:

     ADDRESS:

     IDENTIFICATION NO.:           TAXPAYER:             SPOUSE:

     TAXABLE YEAR:  _______________

2.   The property with respect to which the election is made is described as
     follows: _____________ shares (the "Shares") of the Common Stock of
     Annuncio Software, Inc. (the "Company").

3.   The date on which the property was transferred is: _________________,
     ________.

4.   The property is subject to the following restrictions:

     The Shares may not be transferred and are subject to forfeiture under the
     terms of an agreement between the taxpayer and the Company. These
     restrictions lapse upon the satisfaction of certain conditions contained in
     such agreement.

5.   The fair market value at the time of transfer, determined without regard to
     any restriction other than a restriction which by its terms will never
     lapse, of such property is:

     $______________________.

6.  The amount (if any) paid for such property is:

     $______________________.

     The undersigned has submitted a copy of this statement to the person for
whom the services were performed in connection with the undersigned's receipt of
the above-described property. The transferee of such property is the person
performing the services in connection with the transfer of said property.

     The undersigned understands that the foregoing election may not be revoked
     --------------------------------------------------------------------------
except with the consent of the Commissioner.
-------------------------------------------

     Dated: ________________'________        __________________________________
                                             Taxpayer

     The undersigned spouse of taxpayer joins in this election.

     Dated: ________________'________        __________________________________
                                             Spouse

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