Document:

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                                                                   EXHIBIT 10.18

                              ADVERTISING AGREEMENT

        This Agreement, dated as of April 22, 1999, is made and entered into by
and between Amazon.com. Inc. ("Amazon.com"), and Pets.com. Inc. ("Company"),
Amazon.com and Company sometimes are referred to collectively as the "Parties"
and individually as a "Party." Amazon.com and Company agree as follows:

SECTION 1. DEFINITIONS

        "ADVERTISING PLACEMENT" means any link, advertisement or other
advertising placement provided for in Section 2 or Section 3.

        "AFFILIATE" means, with respect to either Party, any individual or
entity that directly or indirectly controls, is controlled by or is under common
control with that Party, or which Party beneficially owns at least fifty percent
(50%) of the equity interests therein.

        "AMAZON.COM SITE" means the Web Site identified by the URL
www.amazon.com (and any successors or replacements).

        "COMPANY SITE" means the Web Site identified by the URL www.Pets.com
(and any successors or replacements).

        "CONFIDENTIAL INFORMATION" means non-public information and know-how of
the Disclosing Party which, by the nature of the circumstances surrounding
disclosure, ought in good faith to be treated as proprietary and/or
confidential, or which has been or is designated as proprietary and/or
confidential, including without limitation any information exchanged between the
Parties under Sections 5.2 and 5.3 of this Agreement. Confidential Information
does not include information that the Receiving Party can show: (a) was known by
the Receiving Party prior to disclosure thereof by the Disclosing Party; (b) was
in or entered the public domain through no fault of the Receiving Party; (c) is
disclosed to the Receiving Party by a third party legally entitled to make such
disclosure without violation of any obligation of confidentiality; or (d) is
independently developed by the Receiving Party without reference to any
Confidential Information of the Disclosing Party.

        "DISCLOSING PARTY" means a Party that discloses Confidential Information
to the other Party in connection with this Agreement.

        "HOME PAGE" means, with respect to a Web Site, the Web page designated
by the operator of the Web Site as the initial and primary end user interface
for the Web Site.

        "INTELLECTUAL PROPERTY RIGHT" means any patent, copyright, trademark,
trade dress, trade name or trade secret right and any other intellectual
property or proprietary right.

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        "JUMP PAGE" means the Web page maintained on the Amazon.com Site, by or
for Amazon.com. in accordance with Section 2.1.1.

        "NEW COMPANY CUSTOMER" means any individual or entity that accesses the
Company site via a hypertext link embedded in any Advertisement Placement on the
Amazon.com Site and that either (a) purchases a product or service from Company
or any or its Affiliates before leaving the Company Site by any means, or (b)
places at least one product or service in a shopping basket or on a shopping
list (or similar data construct) or otherwise identifies, selects or takes other
affirmative steps to order a product or service in a manner that is recorded and
maintained on the Company Site, then leaves the Company Site by any means, and
subsequently returns to the Company Site and purchases any such identified
product or service.

        "NEW AMAZON.COM CUSTOMER" means any individual or entity that accesses
the Amazon.com Site via a hypertext link embedded in any Advertising Placement
on the Company Site and that either (a) purchases a product service from
Amazon.com or any of its Affiliates before leaving the Amazon.com Site by any
means, or (b) places at least one product or service in a shopping basket or on
a shopping list (or similar data construct) or otherwise identifies, selects or
takes other affirmative steps to order a product or service in a manner that is
recorded and maintained on the Company Site, then leaves the Amazon.com Site by
any means, and subsequently returns to the Amazon.com Site and purchases any
such identified product or service.

        "RECEIVING PARTY" means a Party that receives Confidential Information
from the other Party in connection with this Agreement.

        "TERM" means the term of this Agreement as defined in Section 9.

        "WEB SITE" means any point of presence maintained on the Internet or on
any other public data network. With respect to any Web Site maintained on the
World Wide Web or any successor public data network, such Web Site includes all
HTML pages (or similar unit of information presented in any relevant data
protocol) that either (a) are identified by the same second-level domain (such
as http://www.amazon.com) or by the same equivalent level identifier in any
relevant address scheme, or (b) contain branding, graphics, navigation or other
characteristics such that a user reasonably would conclude that the pages are
part of an integrated information or service offering.

SECTION 2. OBLIGATIONS OF AMAZON

        2.1 ONLINE PROMOTIONS

               2.1.1 During the Term, Amazon.com will create and maintain a Web
page within the Amazon.com Site that contains (a) advertising text and/or
graphics introducing Amazon.com users to the Company Site, and (b) a hypertext
link that permits Amazon.com users to navigate directly to the Home Page of the
Company Site. The content,

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functionality, placement and appearance of the Jump Page and the Company-related
text and/or graphics contained in the Jump Page will be solely determined by
Amazon.com after consulting with Company, subject to the implementation process
outlined in Section 4 and the requirements of Section 6.3.

               2.1.2 During the Term, Amazon.com will place and maintain on the
Amazon.com Site one or more hypertext links from selected areas of the
Amazon.com Site to the Jump Page, in accordance with and subject to the terms
and conditions of this Agreement. The quantity, location, timing, content,
appearance, functionality and similar characteristics of such hypertext links
will be determined by Amazon.com after consulting with Company, subject to the
implementation process outlined in Section 4, and will be limited by, among
other things, the impact on user experience, availability of space and other
business considerations. Notwithstanding anything to the contrary contained in
this Agreement, Amazon.com will have no obligation to place a Company-related
hypertext link on the Home Page of the Amazon.com Site.

               2.1.3 Subject to Amazon.com's specific approval, and by way of
example only, Amazon.com may provide hypertext links to the Jump Page from (a)
certain order confirmation Web pages within the Amazon.com Site, and (b)
relevant Amazon.com Delivers e-mails.

               2.1.4 If, during the Term, Amazon.com creates and maintains an
area within the Amazon.com Site that aggregates advertising placements for the
Web Sites of companies in which Amazon.com has equity investments. Amazon.com
will include a hypertext link to the Jump Page in such area of the Amazon.com
Site. The size and prominence of such link will be determined by Amazon.com in
its discretion.

        2.2 LAUNCH-RELATED PROMOTIONS

               2.2.1 Promptly after the execution of this Agreement, Amazon.com
and Company will (a) prepare and distribute a press release announcing the
transaction, and (b) organize related media events and/or media interviews. If
mutually agreed, the Parties may undertake additional public relations
activities. The contents and timing of the release (or releases) and additional
activities, if any, will be mutually agreed by the Parties. Neither Party will
issue any further press releases, make any other disclosures regarding this
Agreement or its terms or use the other Party's trademarks, trade names or other
proprietary marks without the other Party's prior written consent.

               2.2.2 For a period of sixty (60) days following the date of this
Agreement, Amazon.com will be available to provide a reasonable amount of
marketing advice to Company (as established by the Parties based on their
reasonable determination as to the required level of support and subject to
Amazon.com's marketing capacity and other business constraints) to assist
Company in the planning for the launch of the activities contemplated herein and
the Company Site.

SECTION 3. OBLIGATIONS OF COMPANY

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        During the Term, Company will place and maintain on the Home Page of the
Company Site such Amazon.com advertising message as Amazon.com may develop and
provide to Company, in accordance with and subject to the implementation process
outlined in Section 4 and the other terms and conditions of this Agreement. The
advertising message will include a link to such Web page on the Amazon.com Site
as is designated by Amazon.com. The placement and size of such advertising
message will be determined by Company after consulting with Amazon.com, subject
to the implementation process outlined in Section 4, and will be limited by,
among other things, the impact on user experience, availability of space and
other business considerations.

SECTION 4. IMPLEMENTATION

        4.1 ACCOUNT MANAGERS. Each Party will assign an account manager (which
manager shall be subject to change from time to time by the assigning Party upon
written notice to the other Party) to facilitate coordination of the Parties'
performance of their obligations hereunder (including, without limitation, in
the creation and monitoring of the Advertising Placements).

        4.2 COOPERATION. During the Term, the Parties will cooperate in good
faith and use commercially reasonable efforts to (a) establish and implement
procedures and processes for proposing, creating, approving and implementing the
Advertising Placements under this Agreement, and (b) develop, test and implement
the Advertising Placements in accordance with such procedures and processes and
the terms and conditions of this Agreement.

        4.3 APPROVAL. All Advertising Placements placed on a Party's Web Site
will be subject to such Party's written approval prior to the time the same go
live on the Web Site. No such approval will be unreasonably withheld or delayed.

SECTION 5. COMPENSATION

        5.1 GENERAL. Except as expressly provided for elsewhere in this
Agreement, each Party will be responsible for all costs and expenses incurred by
such Party in performing its obligations under this Agreement, and the
Advertising Placements, license rights and other activities under this Agreement
will be provided and undertaken by the Parties free of charge.

        5.2 REFERRAL FEES. Beginning with the seventh month of the Term and for
each three month period of the Term thereafter ("Quarter"), Company will, within
fifteen (15) days after the end of such Quarter, pay to Amazon.com a referral
fee of [*] dollars ([*]) for each New Company Customer acquired by the Company
during the Quarter. Each such payment will be accompanied by a written statement
setting forth the number of New Company Customers and the Company's calculation
of the referral fees for such Quarter. Any payment owing by Company to
Amazon.com under this Section 5.2 will be reduced by an amount equal to [*]
dollars ([*]) for each New Amazon.com Customer that Amazon.com acquires during
the Quarter covered by such payment. Any amounts not paid when due will be
subject to a finance charge equal to one and one-half percent (1.5%) per month
or the

[*] CERTAIN CONFIDENTIAL INFORMATION ON THIS PAGE HAS BEEN OMITTED AND FILED
    SEPARATELY WITH THE SEC.
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highest rate allowable by law, whichever is less, determined and compounded
daily from the date due until the date paid. Payment of such finance charges
will not excuse or cure any breach or default for late payment. In no event will
the Company be required to make more than one payment to Amazon.com, nor
Amazon.com be required to reduce a payment made by the Company, during the Term
with respect to any individual or entity that constitutes a New Company Customer
or a New Amazon.com Customer, respectively.

        5.3 RECORDS AND AUDIT. Company will maintain complete and accurate
records of all New Company Customers. Amazon.com will maintain complete and
accurate records of all New Amazon.com Customers. Each Party may, at its
expense, examine or audit such records no more than once every twelve months in
order to verify the referral fees payable under this Agreement. Any such audit
will be conducted, to the extent possible, in a manner that does not
unreasonably interfere with the audited Party's business operations. To the
extent a Party uses an independent auditor to conduct such audit, the
independent auditor shall agree in writing to maintain the confidentiality of
information obtained during such audit. If any audit reveals an underpayment of
more than ten percent (10%) of the amounts due to Amazon.com for any month,
Company will reimburse Amazon.com for the costs of such audit.

SECTION 6. PROPRIETARY RIGHTS

        6.1 OWNERSHIP. Subject to the license granted to Company under Section
6.2, Amazon.com hereby reserves all of its right, title and interest in its
Intellectual Property Rights including, without limitation, all right, title and
interest in and to all trademarks, trade dress, logos, insignia and
copyrightable materials supplied by Amazon.com to Company hereunder. Subject to
the foregoing and the license granted to Amazon.com under Section 6.3. Company
reserves all of its right, title and interest in its Intellectual Property
Rights, including, without limitation, all right, title and interest in and to
all trademarks, trade dress, logos, insignia and copyrightable materials
supplied by the Company to Amazon.com.

        6.2 AMAZON.COM LICENSE. Amazon.com hereby grants to Company, during the
Term, a non-exclusive, non-transferable license to use the trade names,
trademarks, service names and other proprietary marks supplied by Amazon.com as
is reasonably necessary to perform its obligations under this Agreement;
provided, however, that any advertising and/or other materials containing any of
Amazon.com's marks will be subject to Amazon.com's prior written approval. All
goodwill arising out of any use of any of Amazon.com's marks by, through or
under Company will inure solely to the benefit of Amazon.com.

        6.3 COMPANY LICENSE. Company hereby grants to Amazon.com during the
Term, a non-exclusive, non-transferable license to use the trade names,
trademarks, service names and other proprietary marks and/or copyrightable
materials supplied by Company as is reasonably necessary to perform its
obligations under this Agreement; provided, however, that any advertising and/or
other materials containing any of Company's marks will be subject to Company's
prior written approval. All goodwill arising out of any use of any of Company's
marks by, through or under Amazon.com will inure solely to the benefit of
Company.

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        6.4 NON-DISPARAGEMENT. Neither Company nor Amazon.com will use the other
Party's proprietary marks in a manner that disparages the other Party or its
products or services, and/or portrays the other Party or its products or
services in a false, competitively adverse or poor light. Each of Company and
Amazon.com will comply with the other Party's requests as to the use of the
other Party's proprietary marks and will avoid knowingly taking any action that
diminishes the value of such marks. Either Party's use of the other Party's
proprietary marks except as expressly permitted by this Agreement is strictly
prohibited.

        6.5 NONEXCLUSIVELY. Each Party expressly acknowledges and agrees that
the rights granted to the other Party in this Agreement are non-exclusive, and
that, without limiting the generality of the foregoing, nothing in this
Agreement shall be deemed to prohibit either Party from soliciting third party
content, links, banner ads or other material, serving content, links, banner ads
or other materials to third parties' Web Sites, or hosting or permitting third
parties to place links, content, banner ads or other material on such Party's
Web Site, whether or not, in each such case, such content, links, banner ads or
other materials are competitive with the products, services, content or banner
ads of the other Party.

SECTION 7. INDEMNITY

        7.1 AMAZON.COM. Amazon.com will defend and indemnify Company and its
Affiliates against any claim or action brought by a third party, to the extent
it is based on (a) the operation of the Amazon.com Site or (b) infringement of
such third-party's Intellectual Property Rights by any materials provided by
Amazon.com for display on the Company Site. Subject to Section 7.3, Amazon.com
will pay any award against Company and its Affiliates, or their respective
employees, directors or representatives and any costs and attorneys' fees
reasonably incurred by them resulting from any such claim or action.

        7.2 COMPANY. Company will defend and indemnify Amazon.com and its
Affiliates (and their respective employees, directors and representatives)
against any claim or action brought by a third party, to the extent it is based
on (a) the operation of the Company Site or (b) infringement of such
third-party's Intellectual Property Rights by any materials provided by Company
for display on any the Amazon.com Site. Subject to Section 7.3, Company will pay
any award against Amazon.com or its Affiliates (or their respective employees,
directors or representatives) and any costs and attorneys' fees reasonably
incurred by Amazon.com and its Affiliates resulting from any such claim or
action.

        7.3 PROCEDURE. In connection with any claim or action described in this
Section 7, the Party seeking indemnification will (a) give the indemnifying
Party prompt written notice of the claim, (b) cooperate with the indemnifying
Party (at the indemnifying Party's expense) in connection with the defense and
settlement of the claim, and (c) permit the indemnifying Party to control the
defense and settlement of the claim, provided that the indemnifying Party may
not settle the claim without the indemnified Party's prior written consent
(which will not be unreasonably withheld). Further, the indemnified Party (at
its cost) may participate in the defense and settlement of the claim.

SECTION 8. DISCLAIMERS, LIMITATIONS AND RESERVATIONS

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        8.1 COMPANY. COMPANY DOES NOT MAKE, AND HEREBY DISCLAIMS, ANY
REPRESENTATIONS OR WARRANTIES REGARDING THE COMPANY SITE OR ANY PORTION THEREOF,
INCLUDING (WITHOUT LIMITATION) IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE, WITHOUT LIMITING THE GENERALITY OF THE FOREGOING,
COMPANY SPECIFICALLY DISCLAIMS ANY REPRESENTATION OR WARRANTY REGARDING (A) THE
AMOUNT OF SALES REVENUE THAT AMAZON.COM MAY RECEIVE DURING THE TERM, AND (B) ANY
ECONOMIC OR OTHER BENEFIT THAT AMAZON.COM MIGHT OBTAIN THROUGH ITS PARTICIPATION
IN THIS AGREEMENT.

        8.2 AMAZON.COM. AMAZON.COM DOES NOT MAKE, AND HEREBY DISCLAIMS, ANY
REPRESENTATIONS OR WARRANTIES REGARDING THE AMAZON.COM SITE OR ANY PORTION
THEREOF, INCLUDING (WITHOUT LIMITATION) IMPLIED WARRANTIES OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE, WITHOUT LIMITING THE GENERALITY OF THE
FOREGOING, AMAZON.COM SPECIFICALLY DISCLAIMS ANY REPRESENTATION OR WARRANTY
REGARDING (A) THE AMOUNT OF SALES REVENUES THAT MAY OCCUR DURING THE TERM, AND
(B) ANY ECONOMIC OR OTHER BENEFIT THAT COMPANY MIGHT OBTAIN THROUGH ITS
PARTICIPATION IN THIS AGREEMENT.

        8.3 NO CONSEQUENTIAL DAMAGES. NEITHER PARTY WILL BE LIABLE TO THE OTHER
PARTY FOR ANY INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING,
WITHOUT LIMITATION, LOST PROFITS OR LOST DATA) ARISING OUT OF THIS AGREEMENT.
EACH PARTY'S ENTIRE LIABILITY ARISING OUT OF OR IN CONNECTION WITH THIS
AGREEMENT (EXCEPT FOR LIABILITIES ARISING UNDER SECTION 6, RESULTING FROM THE
PARTY'S WILLFUL MISCONDUCT OR GROSS NEGLIGENCE, OR CONCERNING LIABILITY FOR
DEATH OR PERSONAL INJURY), WHETHER IN CONTRACT OR TORT (INCLUDING NEGLIGENCE),
WILL NOT EXCEED THE AMOUNTS TO BE PAID TO AMAZON.COM UNDER SECTION 5, EVEN IF
SUCH PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES AND
NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY REMEDY.

        8.4 RESPONSIBILITY FOR WEB SITES. Amazon.com will remain solely
responsible for the operation of the Amazon.com Site, and Company will remain
solely responsible for the operation of the Company Site. Each Party (a)
acknowledges that the Amazon.com Site and the Company Site may be subject to
temporary shutdowns due to causes beyond the operating Party's reasonable
control, and (b) subject to the specific terms of this Agreement, retains sole
right and control over the programming, content and conduct of transactions over
its respective site or service.

SECTION 9. TERM AND TERMINATION

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        9.1 TERM. The Term of this Agreement will begin as of the date of this
Agreement and, unless earlier terminated as provided elsewhere in this
Agreement, will end automatically upon the eighteen (18) month anniversary of
the date of this Agreement; provided that, not less than thirty (30) days prior
to the end of the Term, the Parties will negotiate in good faith in an attempt
to agree on the terms and conditions of an extension of the Term (including,
without limitation, the compensation payable to Amazon.com for Advertising
Placements provided during such extension period). If, after using reasonable
efforts, the Parties are unable to agree upon such terms and conditions, neither
Party will have any obligation to continue its participation in the
negotiations.

        9.2 TERMINATION FOR BREACH. Without limiting any other rights or
remedies (including, without limitation, any right to seek damages and other
monetary relief) that either Party may have in law or otherwise, either Party
may terminate this Agreement if the other Party materially breaches its
obligations hereunder, provided that (a) the non-breaching Party sends written
notice to the breaching Party describing the breach, and (b) the breaching Party
does not cure the breach within thirty (30) days following its receipt of such
notice.

        9.3 OTHER TERMINATION RIGHTS. Either Party may terminate this Agreement
if the other Party (a) has a receiver or administrative receiver appointed for
it or over its undertakings or assets, (b) passes a resolution for winding up or
a court of competent jurisdiction makes an order to that effect and such order
is not discharged within ninety (90) days, (c) enters into any voluntary
arrangement with its creditors for the benefit of its creditors, (d) becomes
subject to an administration order, or (e) ceases to carry on business.

        9.4 EFFECT OF TERMINATION. On termination of this Agreement: (a) each
Party in receipt, possession or control of the other Party's intellectual or
proprietary property, information and materials pursuant to this Agreement must
return to the other Party (or at the other Party's written request, destroy)
such property, information and materials, (b) each Party must, subject to
receiving written consent to the contrary from the other Party, immediately
remove all links to the other Party's Web Site from its own Web Site, and (c)
each Party must cease use of, and remove from its Web Site, all of the
trademarks, trade dress, logos, insignia and copyrightable materials supplied by
the other Party hereunder. Sections 5, 6, 7, 8, 9 and 10 (together with all
other provisions that reasonably may be interpreted as surviving termination or
expiration of this Agreement) will survive the termination or expiration of this
Agreement.

SECTION 10. MISCELLANEOUS

        10.1 INDEPENDENT CONTRACTORS. The Parties are entering this Agreement as
independent contractors, and this Agreement will not be construed to create a
partnership, joint venture or employment relationship between them. Neither
Party will represent itself to be an employee or agent of the other or enter
into any agreement or legally binding commitment or statement on the other's
behalf of or in the other's name.

        10.2 NONDISCLOSURE. Each Party will protect the Confidential Information
of the other Party from misappropriation and unauthorized use or disclosure, and
at a minimum, will take precautions at least as great as those taken to protect
its own confidential information of a

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similar nature. Without limiting the foregoing, the Receiving Party will: (a)
use such Confidential Information solely for the purposes for which it has been
disclosed; and (b) disclose such Confidential Information only to those of its
employees, agents, consultants, and others who have a need to know the same for
the purpose of performing this Agreement and who are informed of and agree to a
duty of nondisclosure. The Receiving Party may also disclose Confidential
Information of the Disclosing Party to the extent necessary to comply with
applicable law or legal process, provided that the Receiving Party uses
reasonable efforts to give the Disclosing Party prompt advance notice thereof.
Upon request of the other Party, or in any event upon any termination or
expiration of the Term, each Party shall return to the other all-materials, in
any medium, which contain, embody, reflect or reference all or any part of any
Confidential Information of the other Party.

        10.3 COMPLIANCE WITH LAWS. In its performance of this Agreement, each
Party will comply with all applicable laws, regulations, orders and other
requirements, now or hereafter in effect, of governmental authorities having
jurisdiction. Without limiting the generality of the foregoing, each Party will
pay, collect, remit and otherwise be responsible such taxes as may be imposed
upon such Party in the first instance with respect to any compensation,
royalties or transactions under this Agreement. Except as expressly provided
herein, each Party will be responsible for all costs and expenses incurred by it
in connection with the negotiation, execution and performance of this Agreement.

        10.4 NOTICES. Any notice or other communication under this Agreement
given by either Party to the other Party will be in writing and will be deemed
properly given when sent to the intended recipient by registered letter,
receipted commercial courier, or electronically receipted facsimile transmission
(acknowledged in like manner by the intended recipient) at its address specified
below its signature at the end of this Agreement, and in the case of Amazon.com.
with a copy to Amazon.com. Inc., 1516 Second Avenue, Seattle, WA 98101, USA,
Facsimile: 206-834-7010, Attn: General Counsel; provided, that no notice of
termination of this Agreement shall be deemed properly given unless sent by
registered mail to such address(es) and to the attention of such officer(s).
Either Party may from time to time change such address or individual by giving
the other Party notice of such change in accordance with this Section 10.4.

        10.5 ASSIGNMENT. Neither Amazon.com nor Company may assign this
Agreement, in whole or in part, without the other Party's prior written consent
(which will not be withheld unreasonably), except to (a) any corporation
resulting from any merger, consolidation, or other reorganization involving the
assigning Party, (b) any of its Affiliates, or (c) any person or entity to which
the assigning Party may transfer substantially all of its assets; provided that
the assignee agrees in writing to be bound by all the terms and conditions of
this Agreement. Subject to the foregoing, this Agreement will be binding on and
enforceable by the Parties and their respective successors and permitted
assigns.

        10.6 NONWAIVER. The failure of either Party to enforce any provision of
this Agreement will not constitute a waiver of the Party's rights to
subsequently enforce the

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provision. The remedies specified in this Agreement are in addition to any other
remedies that may be available in law.

        10.7 ENTIRE AGREEMENT. This Agreement (a) represents the entire
agreement between the Parties with respect to the subject matter hereof and
supersedes any previous or contemporaneous oral or written agreements regarding
such subject matter, (b) may be amended or modified only by a written instrument
signed by a duly authorized agent of each Party, and (c) will be interpreted,
construed and enforced in all respects in accordance with the laws of the laws
of the State of Washington, without reference to its choice of law rules. If any
provision of this Agreement is held to be invalid, such invalidity will not
effect the remaining provisions. No breach of this Agreement by either Party
shall affect the rights or obligations of either Party under any other Agreement
between the Parties; rather, the same will remain in full force and effect.

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amended or modified only by a written instrument signed by a duly authorized
agent of each Party, and (c) will be interpreted, construed and enforced in all
respects in accordance with the laws of the laws of the State of Washington,
without reference to its choice of law rules. If any provision of this Agreement
is held to be invalid, such invalidity will not effect the remaining provisions.
No breach of this Agreement by either Party shall affect the rights or
obligations of either Party under any other Agreement between the Parties;
rather, the same will remain in full force and effect.

Amazon:                                Company:

AMAZON.COM, INC.                       PETS.COM, INC.

By:      /s/ Ram Shriram               By:    /s/ Julie Wainwright
    -------------------------------        -------------------------------

Title:  V.P. Business Development      Title:    CEO
      -----------------------------          -----------------------------

Date:   April 20, 1999                 Date:    4/22/99
       ----------------------------         ------------------------------

Notice Address:                        Notice Address:

Amazon.com Incorporated                Pets.com, Inc.
1516 Second Ave., Floor 2              87 N. Raymond Avenue, Suite 850
Seattle, WA  98101                     Pasadena, CA  91103
Facsimile:  206.834.7010               Facsimile:  626.794.8500

                                      -10-<PAGE>   1
                                                                   EXHIBIT 10.19

                     SOFTWARE LICENSE AND SERVICES AGREEMENT

This Software License and Services Agreement ("Agreement") is made and entered
into as of this 21st day of May, 1999, between BroadVision, Inc. ("BroadVision")
and

Company Pets.com
       -------------------------------
        ("Customer")

Address 5903 Christie Ave.
       -------------------------------

        Emeryville, CA  94608
       -------------------------------

In consideration of the mutual covenants and conditions contained in this
Agreement, the parties agree as stated herein. The following attachments,
required when applicable, are also part of this Agreement:

   A. Current Licensing Practices

   B. Required Provisions of Sublicenses

   C. Professional Services Terms & Conditions

1. LICENSE.

   A. BroadVision hereby grants to Customer a perpetual (unless terminated as
      set forth herein), nonexclusive, and nontransferable license, subject to
      the terms and conditions of this Agreement, to use the object code for the
      Software. For the purpose of this Agreement, "Software" shall mean all
      versions, including current, previous, and subsequent versions, of all
      software products, together with operating instructions, user manuals,
      training material, and other documentation as may, in BroadVision's sole
      discretion, be supplied to Customer.

   B. Customer may use the Software in accordance with BroadVision's published
      licensing practices in force at the time of delivery of the applicable
      Software products. BroadVision's current licensing practices are as set
      forth in Attachment A.

   C. Customer may not (a) rent, lease, or loan the Software; (b) electronically
      transmit the Software over a network except as necessary for Customer's
      licensed use of the Software; (c) use run-time versions of third-party
      products embedded in the Software, if any, for any use other than the
      intended use of the Software, (d) modify, disassemble, decompile, or
      reverse engineer the Software; (e) transfer possession of any copy of the
      Software to another party, except as expressly permitted herein; or (f)
      use the Software in any way not expressly provided for in this Agreement.
      There are no implied licenses. Customer agrees not to exceed the scope of
      the licenses granted herein.

   D. BroadVision also grants to Customer the right to grant nontransferable
      sublicenses to portions of the Software, where such grants are explicitly
      permitted by BroadVision's licensing practices. Customer shall require
      each such sublicensee, before it may use or install the sublicensed
      Software, to execute a written license agreement containing, at a minimum,
      the required provisions specified in Attachment B. Customer shall
      indemnify BroadVision for all losses, costs, damages, expenses, and
      liabilities caused by Customer's failure to include required terms in its
      sublicense agreements with its sublicensees.

                                      -1-

<PAGE>   2
2. PAYMENT, PRICES.

   A. Invoices shall be issued upon delivery of the products or services, unless
      specified herein to the contrary, and shall be due and payable in United
      States currency upon receipt by Customer. Payment shall be overdue thirty
      (30) days after the delivery date specified on the invoice. Overdue
      payments shall be subject to a finance charge of one and one-half percent
      (1 1/2%) for each month or fraction thereof that the invoice is overdue,
      or the highest interest rate permitted by applicable law, whichever is
      lower. BroadVision shall also be reimbursed for its collection costs in
      the event of late payments, including reasonable attorney's fees.

   B. Software will be shipped FOB BroadVision's facility in Redwood City,
      California, U.S.A., by commercial surface transportation. Transportation
      charges in excess of such rates will be billed to Customer. Software shall
      be deemed accepted upon delivery.

   C. The prices stated in BroadVision quotations are exclusive of any federal,
      state, municipal, value-added, foreign withholding or other governmental
      taxes, duties, fees, excises, or tariffs now or hereafter imposed on the
      production, storage, licensing, sale, transportation, import, export, or
      use of the Software or any improvements, alterations, or amendments to the
      Software. Customer shall be responsible for, and if necessary reimburse,
      BroadVision for all such taxes, duties, fees, excises, or tariffs, except
      for governmental or local taxes imposed on BroadVision's corporate net
      income.

3. SOFTWARE MAINTENANCE.

   A. BroadVision agrees to provide Customer with software maintenance subject
      to the following provisions and conditions:

      i.   At Customer's request, BroadVision shall provide software maintenance
           at prices to be quoted to Customer. Software maintenance shall
           include (i) telephone and electronic mail support provided during
           BroadVision's normal working hours, and (ii) standard releases
           containing improvements or modifications to the Software, where such
           improvements or modifications are not priced as separate new products
           or options ("Standard Release").

      ii.  BroadVision shall provide software maintenance for any Standard
           Release until 180 days after shipment of the subsequent Standard
           Release.

      iii. Customer shall designate one or, with BroadVision's prior written
           approval, more than one Support Contact Person, who shall be
           responsible for communicating support issues to BroadVision. Customer
           agrees to provide BroadVision with timely written notification
           containing all details of software problems necessary for BroadVision
           to diagnose such problems. Customer agrees to cooperate fully in
           providing BroadVision with Customer's source code, in
           machine-readable form, and other materials necessary to reproduce a
           reported software problem. Subject to Customer's security
           requirements, Customer agrees to provide BroadVision reasonable
           direct or remote access and test time on Customer's BroadVision
           system, for the purpose of diagnosing reported software problems. If
           BroadVision provides on-site services at Customer's request in
           connection with software maintenance, Customer shall reimburse
           BroadVision for all

                                      -2-

<PAGE>   3
           travel and other reasonable out-of-pocket expenses incurred with
           respect to such services.

      iv.  Software maintenance may also include any patch releases ("Patch
           Releases") that BroadVision, in its sole discretion, makes available.
           Patch Releases are intended to address material deviations between
           the Software and its published specifications until a Standard
           Release can be made available. Customer may install Patch Releases at
           its option.

      v.   BroadVision shall not be responsible for maintaining Software that
           fails to comply with its published specifications if such
           non-compliance is the result of modification of the Software by
           Customer or third parties. If BroadVision expends its time on a
           noncompliance found to be the result of any of the preceding,
           Customer shall pay BroadVision for such time at BroadVision's
           then-current hourly consulting rate.

   B. Unless terminated by either party with at least ninety days notice,
      software maintenance will automatically be renewed for successive one-year
      periods at BroadVision's then-current prices for software maintenance. In
      the event of termination for Customer's breach or Customer's convenience,
      all maintenance fees shall be immediately due and payable without notice;
      in the event of termination for any other reason, Customer shall be
      entitled to a refund of maintenance fees already paid, prorated for the
      unused portion of such fees.

   C. Annual software maintenance fees are due and payable in advance; in all
      other respects payments are subject to the terms and conditions of the
      Agreement.

   D. If Customer initially declines software maintenance and then subsequently
      elects to commence maintenance, or if maintenance for an item of Software
      is discontinued at Customer's request and then subsequently renewed,
      Customer shall pay the maintenance fees that would have been due for the
      period during which maintenance was not provided.

4. TITLE TO SOFTWARE.

   A. Customer shall include BroadVision's copyright or proprietary rights
      notice on any copies of the Software or associated documentation,
      including copyright or proprietary rights notices of third parties that
      are included on media or in documentation provided by BroadVision.
      Customer acknowledges that the Software is the property of BroadVision or
      its licensors.

   B. Unless otherwise requested by BroadVision, Customer shall ensure that the
      phrase, "Personalized by BroadVision One-To-One" shall appear prominently
      on the logon screen, splash screen, or other first view of the Customer's
      application seen by consumers or other end-users when they enter such
      application. The above phrase shall be a hypertext link to a URL specified
      by BroadVision. Customer's use of the phrase shall be in accordance with
      BroadVision's guidelines for use of the mark.

5. WARRANTY.

   BroadVision warrants that the Software will conform in all material respects
   to its written specifications when installed and for 90 days thereafter. For
   purposes of this Agreement, the sole source of such specifications shall be
   BroadVision's written user documentation. Customer will notify BroadVision
   within 10 days after the expiration of the warranty period

                                      -3-

<PAGE>   4
   of any nonconformity. Where a material nonconformity exists within the
   warranty period, and proper notice has been given to BroadVision, BroadVision
   will, as its sole and exclusive liability to Customer, use due diligence to
   correct the nonconformity and provide Customer with one copy of any such
   corrected version of the Software, or, if BroadVision is unable to correct
   such nonconformances within a reasonable period of time, refund all license
   fees paid to it for the Software, or the most recent software maintenance fee
   paid for the Software, if the nonconformity relates to a Standard Release
   delivered pursuant to Section 3 herein. THIS WARRANTY IS IN LIEU OF ALL OTHER
   WARRANTIES AND CONDITIONS, EXPRESSED OR IMPLIED, AND BROADVISION EXPRESSLY
   DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
   PURPOSE, TITLE, OR NONINFRINGEMENT.

6. LIMITATION OF LIABILITY.

   BroadVision's liability to Customer under this Agreement or for any other
   reason relating to the products and services provided under this Agreement,
   including claims for contribution or indemnity, shall be limited to the
   amount paid to BroadVision under this Agreement. NOTWITHSTANDING THE FAILURE
   OF ESSENTIAL PURPOSE OF ANY REMEDY UNDER THIS AGREEMENT, THE PARTIES AGREE
   THAT IN NO EVENT SHALL EITHER PARTY BE LIABLE FOR SPECIAL, INCIDENTAL, OR
   CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS OR LOSS OF USE, PROVIDED THAT
   FOR PURPOSES OF THIS SECTION 6 LOST REVENUES RELATED TO UNAUTHORIZED USE OR
   DISCLOSURE OF THE SOFTWARE SHALL BE DEEMED A DIRECT DAMAGE.

7. INTELLECTUAL PROPERTY RIGHTS INDEMNITY.

   BroadVision will defend and hold harmless Customer against any claim that the
   Software constitutes infringement of a patent, copyright, trademark, or trade
   secret. BroadVision shall also indemnify Customer for any reasonable expense
   incurred by Customer in connection with the foregoing. BroadVision's
   obligations under this section are conditioned upon BroadVision having sole
   control of any such action, and upon Customer notifying BroadVision
   immediately in writing of the claim and giving authority, information, and
   assistance necessary to settle or defend such claim. If the use of the
   Software infringes or is enjoined, or BroadVision believes it is likely to
   infringe or be enjoined, BroadVision may, at its sole option, (i) procure for
   Customer the right to continue use of the licensed Software as furnished;
   (ii) replace the licensed Software; (iii) modify the licensed Software to
   make it non-infringing, provided that the Software still substantially
   conforms to the applicable specifications; or (iv) if BroadVision, after
   using all commercially reasonable efforts, is unable to accomplish the
   foregoing remedies, terminate the license and refund the license fee for the
   Software, less a proportional adjustment for the time the Software was used
   by Customer, equal to the ratio of the time elapsed since the delivery date
   to five (5) years. The indemnity provided herein shall not apply if the
   alleged infringement arises from: (a) the use of other than a currently
   supported, unaltered release of the licensed Software; (b) the use of
   Software that has been modified or merged with other programs by Customer; or
   (c) the use of the licensed Software in combination with software or hardware
   not provided under this Agreement. The foregoing states BroadVision's sole
   and exclusive liability for patent, copyright, or other proprietary rights
   infringement.

                                      -4-

<PAGE>   5
8. CONFIDENTIALITY OF SOFTWARE AND DOCUMENTS.

   A. Customer shall not reproduce, duplicate, copy, sell, or otherwise
      disclose, or disseminate the Software, including operating instructions,
      user manuals, and training materials, in any medium except as authorized
      herein. Customer may make copies of the Software, in machine readable
      form, only as is reasonably necessary for archival and backup purposes.

   B. Customer expressly undertakes, using reasonable efforts not less than it
      exercises for its own confidential materials, to retain in confidence, and
      to require its employees or consultants to retain the Software in
      confidence, and will make no use of such information, except under the
      terms and during the existence of this Agreement, and only to the extent
      that such use is necessary to Customer's employees or consultants in the
      course of their employment.

   C. The provisions of this section shall survive the termination of this
      Agreement for a period of five (5) years.

   D. Customer shall not release the results of any benchmark of the Software,
      or of any third party products embedded in the Software, without
      BroadVision's prior written approval.

9. AUDIT RIGHTS.

   At BroadVision's request, but in no event more than twice annually, Customer
   shall provide BroadVision with a report detailing its use of the Software. No
   more than once annually, BroadVision may audit Customer's records to ensure
   that license and other fees have been properly paid in compliance with this
   Agreement. Any such audit will be conducted during regular business hours at
   Customer's offices and shall not interfere unreasonably with Customer's
   business activities. If an audit reveals that Customer has underpaid its
   total fees by more than five percent (5%), then Customer shall pay
   BroadVision's reasonable costs of conducting the audit, in addition to the
   underpaid amount.

10.TERM/TERMINATION.

   This Agreement is effective on the earlier of (i) the date of shipment of the
   Software or (ii) the date set forth above, and continues until terminated as
   provided herein, or by agreement of both parties. BroadVision may terminate
   this Agreement upon: (a) any material breach of this Agreement by Customer
   that is not cured within 30 days following written notice thereof; or (b)
   failure by Customer to pay license fees for Software under the payment terms
   specified in this Agreement or as stated on BroadVision's invoice for such
   Software, which failure remains uncured after thirty (30) days written notice
   thereof. Upon termination of this Agreement for any of the above reasons, all
   licenses granted hereunder terminate and Customer will immediately destroy
   the Software and all copies in any form. Upon termination for any other
   reason, Customer may continue to use the Software, provided that Sections 1,
   2 (to the extent that any amounts are owed to BroadVision as of the
   termination date), 4, 6, 7, 8, 9, and 11 shall survive the termination of
   this Agreement, and BroadVision may terminate Customer's use of the Software
   upon a material breach of any of the surviving sections.

11.GENERAL.

   A. Waiver/Amendment. No waiver, amendment, or modification of any provision
      of this Agreement shall be effective unless in writing and signed by the
      party against whom

                                      -5-

<PAGE>   6
      such waiver, amendment, or modification is sought to be enforced. No
      failure or delay by either party in exercising any right, power or remedy
      under this Agreement, except as specifically provided herein, shall be
      deemed as a waiver of any such right, power, or remedy.

   B. ASSIGNMENT. Either party may assign this Agreement to an entity acquiring
      substantially all of its assets or merging with it, provided that such
      assignee agree in writing to assume all obligations under this Agreement.
      Except as set forth above, neither party may assign any of its rights or
      delegate any of its obligations under this Agreement to any third party
      without the express written consent of the other. Any attempted assignment
      in violation of the foregoing shall be void and of no effect. Subject to
      the above, this Agreement shall be binding upon and inure to the benefit
      of the successors and assigns of the parties hereto.

   C. Disputes. The rights of the parties hereunder shall be governed by the
      laws of the State of California without giving effect to principles of
      conflicts of laws. Any suits brought hereunder may be brought in the
      federal or state courts in Santa Clara County, California, and Customer
      submits to the jurisdiction thereof. The parties expressly exclude the
      application of the 1980 United Nations Convention on Contracts for the
      International Sale of Goods, if applicable.

      Customer acknowledges that the Software contains trade secrets, the
      disclosure of which would cause substantial harm to BroadVision that could
      not be remedied by the payment of damages alone. Accordingly, BroadVision
      will be entitled to preliminary and permanent injunctive relief and other
      equitable relief for any breach of BroadVision's intellectual property
      rights in the Software.

   D. SEVERABILITY. If any provision of this Agreement shall be held by a court
      of competent jurisdiction to be contrary to law, the remaining provisions
      of this Agreement shall remain in full force and effect.

   E. EXPORT. Customer acknowledges that the laws and regulations of the United
      States restrict the export of the Software. Customer agrees that it will
      not export or re-export the Software in any form without first obtaining
      the appropriate United States and foreign government approvals.

   F. NOTICE. Any notice, consent, or other communication hereunder shall be in
      writing, and shall be given personally, by confirmed fax or express
      delivery to either party at their respective addresses:

      (i)  to BroadVision at:
           BroadVision, Inc.
           585 Broadway
           Redwood City, CA 94063, USA
           Attn:  Chief Financial Officer

      (ii) to Customer at:

                                      -6-

<PAGE>   7
           Pets.com
           435 Brannan St.
           San Francisco, CA
           Attn:  Julie Wainwright

      or such other address as may be designated by written notice of either
      party. Notices shall be deemed given when delivered or transmitted, or
      seven days after deposit in the mail.

   G. INDEPENDENT CONTRACTORS. The parties' relationship shall be solely that of
      independent contractor and nothing contained in this Agreement shall be
      construed to make either party an agent, partner, joint venturer, or
      representative of the other for any purpose.

   H. FORCE MAJEURE. If the performance of this Agreement, or any obligation
      hereunder, except the making of payments, is prevented, restricted, or
      interfered with by reason of any act or condition beyond the reasonable
      control of the affected party, the party so affected will be excused from
      performance to the extent of such prevention, restriction, or
      interference.

   I. ENTIRE AGREEMENT. This Agreement, including all Attachments hereto,
      constitutes the complete and exclusive agreement between the parties with
      respect to the subject matter hereof and supersedes all proposals, oral,
      or written, all previous negotiations, and all other communications
      between the parties with respect to the subject matter hereof. The terms
      of this Agreement shall prevail notwithstanding any different,
      conflicting, or additional terms that may appear in any purchase order or
      other Customer document. All products and services delivered by
      BroadVision to Customer are subject to the terms of this Agreement, unless
      specifically addressed in a separate agreement.

Agreed to by:  BROADVISION, INC.

                    /s/ Randall Bolten
               -------------------------------
               Signature

                    Randall Bolten
               -------------------------------
               Printed Name

                    CFO
               -------------------------------
               Title

                                      -7-

<PAGE>   8
CUSTOMER:           Pets.com
               -------------------------------
               Company Name

                    /s/ Paul Melmon
               -------------------------------
               Signature

                    Paul Melmon
               -------------------------------
               Printed Name

                    Vice President, Engineering
               -------------------------------
               Title

                                      -8-

<PAGE>   9
                                  ATTACHMENT A

                           CURRENT LICENSING PRACTICES

                               Not Yet Applicable.

                                      -9-

<PAGE>   10
                                  ATTACHMENT B

                       REQUIRED PROVISIONS OF SUBLICENSES

                               Not Yet Applicable.

                                      -10-

<PAGE>   11
                                  ATTACHMENT C

                    PROFESSIONAL SERVICES TERMS & CONDITIONS

                               Not Yet Applicable.

                                      -11-

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