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                                                                   EXHIBIT 10.15



                                  EGROUPS, INC.

                           PROPRIETARY INFORMATION AND
                         INVENTION ASSIGNMENT AGREEMENT


        As a condition of my becoming employed (or my employment being
continued) by or retained as a consultant (or my consulting relationship being
continued eGroups, Inc., a Delaware corporation, with any of its current or
future subsidiaries, affiliates, successors or assigns (collectively, the
"Company", and in consideration of my employment or consulting relationship with
the Company and my receipt of the compensation now and hereafter paid to me by
the Company, I agree to the following:

        1. EMPLOYMENT OR CONSULTING RELATIONSHIP. I understand and acknowledge
that this Agreement does not alter, amend or expand upon any rights I may have
to continue in the employ of, or in a consulting relationship with, or the
duration of my employment or consulting relationship with, the Company under any
existing agreements between the Company and me or under applicable law. Any
employment or consulting relationship between the Company and me, whether
commenced prior to or upon the date of this Agreement, shall be referred to
herein as the "Relationship."

        2. AT-WILL EMPLOYMENT. I understand and acknowledge that my Relationship
with the Company is and shall continue to be at-will, as defined under
applicable law, meaning that either I or the Company may terminate the
Relationship at any time for any reason or no reason, without further obligation
or liability.

        3. PROPRIETARY INFORMATION.

               (a) COMPANY INFORMATION. I agree at all times during the term of
my Relationship with the Company and thereafter, to hold in strictest
confidence, and not to use, except for the benefit of the Company, or to
disclose to any person, firm, corporation or other entity without written
authorization of the Board of Directors of the Company, any Proprietary
Information of the Company which I obtain or create. I further agree not to make
copies of such Proprietary Information except as authorized by the Company. I
understand that "Proprietary Information" means any Company proprietary
information, technical. data, trade secrets or know how, including, but not
limited to, research, product plans, products, services, suppliers, customer
lists and customers (including, but not limited to, customers of the Company on
whom I called or with whom I became acquainted during the Relationship), prices
and costs, markets, software, developments, inventions, laboratory notebooks,
processes, formulas, technology, designs, drawings, engineering, hardware
configuration information, marketing, licenses, finances, budgets or other
business information disclosed to me by the Company either directly or
indirectly in writing, orally or by drawings or observation of parts or
equipment or created by me during the period of the Relationship, whether or not
during working hours. I understand that "Proprietary Information" includes, but
is not limited to, information pertaining to any aspects of the Company's
business which is either information not known by actual or potential
competitors of the Company or is proprietary information of the Company or its
customers or suppliers, whether of a technical nature or otherwise. I further
understand that Proprietary Information does not include any of the foregoing
items which has become publicly and widely known and made generally available
through no wrongful act of mine or of others who were under confidentiality
obligations as to the item or items involved.

               (b) FORMER EMPLOYER INFORMATION. I represent that my performance
of all terms of this Agreement as an employee or consultant of the Company have
not breached and will not breach any agreement to keep in confidence proprietary
information, knowledge or data acquired by me in confidence or trust prior or
subsequent to the commencement of my Relationship with the Company, and I will
not disclose to the Company, or induce the Company to use, any inventions,
confidential or proprietary information or material belonging to any previous
employer or any other party.

               (c) THIRD PARTY INFORMATION. I recognize that the Company has
received and in the future will receive from third parties their confidential or
proprietary information subject to a duty on the Company's part to maintain the
confidentiality of such information and to use it only for certain limited
purposes. I agree to hold all such confidential or proprietary information in
the strictest confidence and not to disclose it to any person, firm or
corporation or to use it except as necessary in' carrying out my work for the
Company consistent with the Company's agreement with such third party.

        4. INVENTIONS.

               (a) INVENTIONS RETAINED AND LICENSED. I have attached hereto, as
Exhibit A a list describing with particularity all inventions, original works of
authorship, developments, improvements, and trade secrets which were made by me
prior to the commencement of the Relationship (collectively referred to as
"Prior Inventions"),


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which belong solely to me or belong to me jointly with another, which relate in
any way to any of the Company's proposed businesses, products or research and
development, and which are not assigned to the Company hereunder; or, if no such
list is attached, I represent that there are no such Prior Inventions. If, in
the course of my Relationship with the Company, I incorporate into a Company
product, process or machine a Prior Invention owned by me or in which I have an
interest, the Company is hereby granted and shall have a non-exclusive,
royalty-free, irrevocable, perpetual, worldwide license (with the right to
sublicense) to make, have made, copy, modify, make derivative works of, use,'
sell and otherwise distribute such Prior Invention as part of or in connection
with such product, process or machine.

               (b) ASSIGNMENT OF INVENTIONS. I agree that I will promptly make
full written disclosure to the Company, will hold in trust for the sole right
and benefit of the Company, and hereby assign to the Company, or' its designee,
all my right, title and interest throughout the world in and to any and all
inventions, original works of authorship, developments, concepts, know-how,
improvements or trade secrets, whether or not patentable or registrable under
copyright or similar laws, which I may solely or jointly conceive or develop or
reduce to practice, or cause to be conceived or developed or reduced to
practice, during the period of time in which I am employed by or a consultant of
the Company (collectively referred to as "Inventions"), except as provided in
Section 4(e) below. I further acknowledge that all inventions, original works of
authorship, developments, concepts, know-how, improvements or trade secrets
which are made by me (solely or jointly with others) within the scope of and
during the period of my Relationship with the Company are "works made for hire"
(to the greatest extent permitted by applicable law) and are compensated by my
salary (if I am an employee) or by such amounts paid to me under any applicable
consulting agreement or consulting arrangements (if I am a consultant), unless
regulated otherwise by the mandatory law of the state of California.

               (c) MAINTENANCE OF RECORDS. I agree to keep and maintain adequate
and current written records of. all Inventions made by me (solely or jointly
with others) during the term of my Relationship with the Company. The records
may be in the form of notes, sketches, drawings, flow charts, electronic data or
recordings, laboratory notebooks, and any other format. The records will be
available to and remain the sole property of the Company at all times. I agree
not to remove such records from the Company's place of business except as
expressly permitted by Company policy which may, from time to time, be revised
at the sole election of the Company for the purpose of furthering the Company's
business.

               (d) PATENT AND COPYRIGHT RIGHTS. I agree to assist the Company,
or its designee, at the Company's expense, in every proper way to secure the
Company's rights in the Inventions and any copyrights, patents, trademarks, mask
work rights, moral rights, or other intellectual property rights relating
thereto in any and all countries, including the disclosure to the Company of all
pertinent information and data with respect thereto, the execution of all
applications, specifications, oaths, assignments, recordations, and all other
instruments which the Company shall deem necessary in order to apply for,
obtain, maintain and transfer such rights and in order to assign and convey to
the Company, its successors, assigns and nominees the sole and exclusive rights,
title and interest in and to such Inventions, and any copyrights, patents, mask
work rights or other intellectual property rights relating thereto. I further
agree that my obligation to execute or cause to be executed, when it is in my
power to do so, any such instrument or papers shall continue after the
termination of this Agreement until the expiration of the last such intellectual
property right to expire in any country of the world. If the Company is unable
because of my mental or physical incapacity or unavailability or for any other
reason to secure my signature to apply for or to pursue any application for any
United States or foreign patents or copyright registrations covering Inventions
or original works of authorship assigned to the Company as above, then I hereby
irrevocably designate and appoint the Company and its duly authorized officers
and agents as my agent and attorney in fact, to act for and in my behalf and
stead to execute and file any such applications and to do all other lawfully
permitted acts to further the application for, prosecution, issuance,
maintenance or transfer of letters patent or copyright registrations thereon
with the same legal force and effect as if originally executed by me. I hereby
waive and irrevocably quitclaim to the Company any and all claims, of any nature
whatsoever, which I now or hereafter have for infringement of any and all
proprietary rights assigned to the Company.

               (e) EXCEPTION TO ASSIGNMENTS. I understand that the provisions of
this Agreement requiring assignment of Inventions to the Company do not apply to
any. invention which qualifies fully under the provisions of California Labor
Code Section 2870 (attached hereto as Exhibit B). I will advise the Company
promptly in writing of any inventions that I believe meet such provisions and
are not otherwise disclosed on Exhibit A.

        5. RETURNING COMPANY DOCUMENTS. I agree that, at the time of termination
of my Relationship with the Company, I will deliver to the Company (and will not
keep in my possession, recreate or deliver to anyone else) any and all devices,
records, data, notes, reports, proposals, lists, correspondence, specifications,
drawings, blueprints, sketches, laboratory notebooks, materials, flow charts,
equipment, other documents or property, or reproductions of any aforementioned
items developed by me pursuant to the Relationship or otherwise belonging to the
Company, its successors or assigns. I further agree that to any property
situated on the Company's premises and owned by the Company, including disks and
other storage media, filing cabinets or other work areas, is subject to


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inspection by-Company personnel at any time with or without notice. In the event
of the termination of the Relationship, I agree to sign and deliver the
"Termination Certification" attached hereto as Exhibit C.

        6. NOTIFICATION TO OTHER PARTIES.

               (a) EMPLOYEES. In the event that I leave the employ of the
Company, I hereby consent to notification by the Company to my new employer
about my rights and obligations under this Agreement.

               (b) CONSULTANTS. I hereby grant consent to notification by the
Company to any other parties besides the Company with whom I maintain a
consulting relationship, including parties with whom such relationship commences
after the effective date of this Agreement, about my rights and obligations
under this Agreement.

        7. SOLICITATION OF EMPLOYEES, CONSULTANTS AND OTHER PARTIES. I agree
that during the term of my Relationship with the Company, and for a period of
twenty-four (24) months immediately following the termination of my Relationship
with the Company for any reason, whether with or without cause, I shall not
either directly or indirectly solicit, induce, recruit or encourage any of the
Company's employees or consultants to terminate their relationship with the
Company, or take away such employees or consultants, or attempt to solicit,
induce, recruit, encourage or take away employees or consultants of the Company,
either for myself or for any other person or entity. Further, for a period of
twenty-four (24) months following termination of my Relationship with the
Company for any reason, with or without cause, I shall not solicit any licensor
to or customer of the Company or licensee of the Company's products, in each
case, that are known to me, with respect to any business, products or services
that are competitive to the products or services offered by the Company or under
development as of the date of termination of my Relationship with the Company.

        8. REPRESENTATIONS AND COVENANTS.

               (a) FACILITATION OF AGREEMENT. I agree to execute promptly any
proper oath or verify any proper document required to carry out the terms of
this Agreement upon the Company's written request to do so.

               (b) CONFLICTS. I represent that my performance of all the terms
of this Agreement will not breach any agreement to keep in confidence
proprietary information acquired by me in confidence or in trust prior to
commencement of my Relationship with the Company. I have not entered into, and I
agree I will not enter into, any oral or written agreement in conflict with any
of the provisions of this Agreement.

               (c) VOLUNTARY EXECUTION. I certify and acknowledge that I have
carefully read all of the provisions of this Agreement and that I understand and
will fully and faithfully comply with such provisions.

        9. GENERAL PROVISIONS.

               (a) GOVERNING LAW. The validity, interpretation, construction and
performance of this Agreement shall be governed by the laws of the State of
California, without giving effect to the principles of conflict of laws.

               (b) ENTIRE AGREEMENT. This Agreement sets forth the entire
agreement and understanding between the Company and me relating to the subject
matter herein and merges all prior discussions between us. No modification or
amendment to this Agreement, nor any waiver of any rights under this Agreement,
will be effective unless in writing signed by the party to be charged. Any
subsequent change or changes in my duties, obligations, rights or compensation
will not affect the validity or scope of this Agreement.

               (c) SEVERABILITY. If one or more of the provisions in this
Agreement are deemed void by law, then the remaining provisions will continue in
fall force and effect.

               (d) SUCCESSORS AND ASSIGNS. This Agreement will be binding upon
my heirs, executors, administrators and other legal representatives and will be
for the benefit of the Company, its successors, and its assigns.

               (e) SURVIVAL. The provisions of this Agreement shall survive the
termination of the Relationship and the assignment of this Agreement by the
Company to any successor in interest or other assignee.

               (f) ADVICE OF COUNSEL. I ACKNOWLEDGE THAT, IN EXECUTING THIS
AGREEMENT, I HAVE HAD THE OPPORTUNITY TO SEEK THE ADVICE OF INDEPENDENT LEGAL
COUNSEL, AND I HAVE READ AND UNDERSTOOD ALL OF THE TERMS AND PROVISIONS OF THIS
AGREEMENT. THIS AGREEMENT SHALL NOT BE CONSTRUED AGAINST ANY PARTY BY REASON OF
THE DRAFTING OR PREPARATION HEREOF.

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                            [Signature Page Follows]

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The parties have executed this Agreement on the respective dates set forth
below:

COMPANY:

EGROUPS, INC.

Signature

By:

Title:

Address:

350 Brannan Street

San Francisco, CA 94107


EMPLOYEE:

________________, an Individual:

Signature

Name

Date:

Address: