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                                                                    Exhibit 10.1

                                    AGREEMENT

      AGREEMENT (this "Agreement"), dated as of the 29th day of October, 2000
between About.com, Inc. ("About") and PRIMEDIA Inc. on behalf of itself and its
wholly owned subsidiaries (collectively, "PRIMEDIA").

      WHEREAS, About owns and operates About.com, a platform comprised of a
network of more than 800 targeted, topic-specific web sites;

      WHEREAS, PRIMEDIA is an integrated media company which owns and operates a
variety of print, video, Internet products and live event products in the
consumer, enthusiast and business-to-business markets;

      WHEREAS, About wishes to use, and PRIMEDIA is willing to provide,
advertising and promotional services through December 31, 2001 with a total
value of $14,400,000 as provided herein and in accordance with the terms hereof;
and

      WHEREAS, the parties desire that in consideration for the advertising and
promotional services to be provided hereunder, About shall issue to PRIMEDIA
403,361 shares of About common stock (the "About Stock").

      NOW, THEREFORE in consideration of the premises and the respective
representations, warranties, covenants and agreements contained herein, and for
good and valuable consideration, the receipt and sufficiency of which is hereby
acknowledged, the parties hereto hereby agree as follows:

      1. Promotional Services Commitment.

            1.1. Definitions. For purposes of this Agreement, the following
definitions shall apply:

                  (a) "Print Advertising" shall mean print advertising space in
PRIMEDIA's consumer, enthusiast and business-to-business publications (the
"Publications").

                  (b) "Web Advertising" shall mean advertisements on and
sponsorships, links and other promotions related to PRIMEDIA's consumer,
enthusiast and business-to-business web sites.

                  (c) "Channel One Advertising" shall mean on-air advertising on
PRIMEDIA's Channel One Network.

                  (d) "Advertising" shall mean Print Advertising, Web
Advertising and Channel One Advertising.

                  (e) "Subscriber List Rentals" shall mean the renting by About
of a subscriber, user or customer list from PRIMEDIA.

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                  (f) "Supplemental Promotions" shall mean the publication,
insertion and distribution of promotional inserts or brochures in connection
with the publication of any Publication.

                  (g) "Market Solutions" shall mean integrated promotional and
marketing packages incorporating Advertising, sponsorships, co-branding
opportunities and other promotional devices within or across PRIMEDIA editorial
focus areas (e.g., teens, babies, automobiles).

                  (h) "Trade Show Opportunities" shall mean sponsorships and
booth rentals at PRIMEDIA trade shows.

                  (i) "Promotional Services" shall mean Advertising, Subscriber
List Rentals, Supplemental Promotions, Market Solutions and Trade Show
Opportunities and other forms of print and on-line promotions, sponsorships and
links.

            1.2. Promotional Services Commitment.

                  (a) Annual Commitment. Subject to the provisions herein,
beginning on the date hereof and continuing through December 31, 2001 (the
"Term"), About agrees to purchase and PRIMEDIA agrees to sell and make available
to About an aggregate of $14,400,000 million of Promotional Services (the
"Commitment"). About shall use its reasonable best efforts to use $3 million of
the Commitment in calendar year 2000 and $5 million in the first quarter of
calendar year 2001. About shall use the Promotional Services to promote and
advertise its own products and services and shall not rent, resell or otherwise
transfer to any third party any portion of the Promotional Services

                  (b) Acquisitions/Divestitures. About acknowledges that from
time to time certain of PRIMEDIA's subsidiaries and/or Publications may be sold
and/or new publications or promotional vehicles purchased. Any such changes in
PRIMEDIA shall be cause for renegotiation of the terms of this Agreement only in
the event that they materially alter the Promotional Services available to About
hereunder.

            1.3. Terms. About's requests for any of the Aggregate Promotional
Services shall be subject to the regular policies and practices of PRIMEDIA in
the ordinary course of business including, without limitation, with respect to
placement, space availability and deadlines for providing creative materials.
All Advertising placed by About hereunder and all promotional materials
distributed by About to any party on any subscriber list from a Subscriber List
Rental shall be acceptable to PRIMEDIA in its reasonable discretion consistent
with its regular practices and policies applicable to other advertisers and
clients. PRIMEDIA reserves the right to reject any Advertising or request for
Subscriber List Rentals that do not comply with the foregoing.

            1.4. Price. About shall be charged for all Promotional Services at a
"most favored nation" rate offered to its largest advertisers for the relevant
PRIMEDIA entity. With respect to Promotional Services for which there are no
other regular users, the parties agree to negotiate pricing in good faith
consistent with the most favored nation philosophy rates. Except


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as expressly set forth herein, PRIMEDIA is not responsible for any expenses or
fees relating to the Advertisements including without limitation any agency
commissions or fees.

            1.5. Common Stock Issuance. In consideration for the Promotional
Services to be provided hereunder, About shall issue to PRIMEDIA 403,361 shares
of common stock of About, par value $.001 per share on the date hereof with an
aggregate value equal to $1,400,000 (the "Common Stock"). The Common Stock shall
be issued to PRIMEDIA within five (5) business days of this Agreement. The
Common Stock shall be duly authorized, validly issued and non-assessable. Within
five (5) business days of the date of this Agreement, About shall execute a
customary registration rights agreement in a form reasonably satisfactory to
About and PRIMEDIA providing PRIMEDIA with piggyback rights for the Vested
Portion of the Common Stock (including standard cut-backs) except in respect of
registration on Form S-8 or registrations for issuing stock in the context of an
acquisition.

      2. Termination. (a) This Agreement may be terminated by PRIMEDIA upon
notice to About after termination of the Agreement and Plan of Merger between
the parties hereto of even date herewith (the "Merger Agreement") as a result of
the failure of the condition in Section 6.3(b). This Agreement may be terminated
by About upon notice to PRIMEDIA after termination of the Merger Agreement as a
result of the failure of the condition in Section 6.2(c). In the event of a
termination of this Agreement under this Section, PRIMEDIA shall return to About
such portion of the Common Stock free and clear of all liens, encumbrances and
restrictions which relates to Promotional Services not provided as of such
termination.

                  (b) Upon a material breach of this Agreement, the
non-breaching party shall send a notice of such breach to the breaching party.
The breaching party shall have 10 days to cure such breach. In the absence of
cure, this Agreement may be terminated by the non-breaching party. If the
breaching party is PRIMEDIA, it shall return the Unvested Shares. The "Unvested
Shares" shall equal 403,361 shares minus the Vested Shares. The "Vested Shares"
shall equal 403,361 shares multiplied by a fraction, the numerator of which is
the number of months that have elapsed prior to the termination hereunder and
the denominator of which is 14. Notwithstanding anything to the contrary in the
foregoing, all shares of Common Stock shall be deemed "Vested Shares" (i) upon a
Change of Control or (ii) if this Agreement is terminated as a result of a
material breach by About. A "Change of Control" means an event the result of
which is that a person or group acquires (X) at least 50% of the outstanding
common stock of About or (Y) all or substantially all of its assets.

      3. Representations and Warranties of About.

            3.1. Organization and Authority of About. About (i) is a corporation
duly organized and in good standing under the laws of the State of Delaware and
(ii) has all the requisite power and authority to own or lease its assets and to
carry on its business. About has full power and authority to carry out the
transactions contemplated by this Agreement.

            3.2. Authorization of Agreement. The execution, delivery and
performance by About of this Agreement and the consummation by About of the
transactions contemplated hereby, have been duly authorized by all necessary
action of About. This Agreement has been duly executed and delivered by About
and constitute legal, valid and binding obligations of


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About, enforceable in accordance with its respective terms (except insofar as
enforceability may be limited by applicable bankruptcy, insolvency,
reorganization, moratorium or similar laws affecting creditor's rights generally
or by principles governing the availability of equitable remedies).

            3.3. No Conflicts. Neither the execution, delivery or performance of
this Agreement, nor the consummation by About of the transactions contemplated
hereby, nor compliance by About with the terms and provisions hereof, will (i)
conflict with About's Certificate of Incorporation (ii) conflict with, or result
in the breach or termination of, or constitute a default (or with notice or
lapse of time or both, constitute a default) under or result in the termination
or suspension of, or accelerate the performance required by any of the terms,
conditions or provisions of, any note, bond, mortgage, indenture, license,
lease, agreement, commitment or other instrument to which About is a party or by
which any of its assets is bound except any such conflict which would not result
in a Material Adverse Effect (as defined in the Merger Agreement); (iii)
constitute a violation by About of any law or statute or any judgment, ruling,
order, writ injunction, decree, rule or regulation of any court or governmental
authority applicable to About except to the extent it does not constitute a
Material Adverse Effect; or (iv) result in the creation of any mortgage, pledge,
security interest, claim, lien, charge or encumbrance of any kind ("Lien") upon
any of the assets of About except to the extent it does not constitute a
Material Adverse Effect.

      4. Representations and Warranties of PRIMEDIA.

            4.1. Organization of PRIMEDIA. PRIMEDIA is a corporation duly
organized, validly existing and in good standing under the laws of the state of
Delaware. PRIMEDIA has the full power and authority to enter into this Agreement
and to carry out the transactions contemplated hereby.

            4.2. Authorization of Agreement. The execution, delivery and
performance by PRIMEDIA of this Agreement and the consummation by PRIMEDIA of
the transactions contemplated hereby, have been duly authorized by all necessary
action of PRIMEDIA. This Agreement has been duly executed and delivered by
PRIMEDIA and constitutes the legal, valid and binding obligation of PRIMEDIA,
enforceable in accordance with its terms.

            4.3. No Conflicts. Neither the execution, delivery or performance of
this Agreement, nor the consummation by PRIMEDIA of the transactions
contemplated hereby, nor compliance by PRIMEDIA with the terms and provisions
hereof, will (i) conflict with the Certificate of Incorporation or By-Laws of
PRIMEDIA, (ii) conflict with, or result in the breach or termination of, or
constitute a default (or with notice or lapse of time or both, constitute a
default) under or result in the termination or suspension of, or accelerate the
performance required by any of the terms, conditions or provisions of, any note,
bond, mortgage, indenture, license, lease, agreement, commitment or other
instrument to which PRIMEDIA is a party except to the extent it does not
constitute a Parent Material Adverse Effect (as defined in the Purchase
Agreement); or (iii) constitute a violation by PRIMEDIA of any law or statute or
any judgment, ruling, order, writ injunction, decree, rule or regulation of any
court or governmental authority applicable to PRIMEDIA except to the extent it
does not constitute a Parent Material Adverse Effect.


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            4.4. Purchase Not For Distribution. PRIMEDIA hereby represents and
warrants to About that any shares of About Common Stock acquired by PRIMEDIA
hereunder will not be taken with a view to the public distribution thereof and
will not be transferred or otherwise disposed of except in a transaction
registered or exempt from registration under the Securities Act of 1933, as
amended.

      5. Miscellaneous.

            5.1. Entire Agreement. This Agreement (together with the Schedules
and Exhibits hereto and the documents referred to herein) contains, and is
intended as, a complete statement of all of the terms of the arrangements
between the parties with respect to the matters provided for herein, and
supersedes any previous agreements and understandings between the parties with
respect to those matters. Section titles and headings are inserted for
convenience of reference only and are not intended to be a part or to affect the
meaning or interpretation hereof.

            5.2. GOVERNING LAW. THIS AGREEMENT SHALL BE GOVERNED BY, AND
CONSTRUED AND ENFORCED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.

            5.3. Amendment; Waiver. No provision of this Agreement may be
amended or modified except by an instrument or instruments in writing signed by
the parties hereto. Any party may waive compliance by another with any of the
provisions of this Agreement. No waiver of any provision hereof shall be
construed as a waiver of any other provision or subsequent breach. Any waiver
must be in writing. The failure of any party hereto to enforce at any time any
provision hereof shall not be construed to be a waiver of such provision, nor in
any way to affect the validity hereof or any part hereof or the right of any
party thereafter to enforce each and every such provision.

            5.4. Notices. All notices and other communications under this
Agreement shall be in writing and shall be deemed given when delivered
personally, mailed by registered mail, return receipt requested, sent by
documented overnight delivery service or, to the extent receipt is confirmed, by
telecopy to the parties at the following addresses (or to such other address as
a party may have specified by notice given to the other party pursuant to this
provision):

            If to About to it at

                     About.com, Inc.
                     1440 Broadway, 19th Floor
                     New York, New York 10018
                     Attention: Alan Blaustein, Esq.
                     Fax: (212) 204-1521

            with a copy to:


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                     Brobeck, Phleger & Harrison LLP
                     1633 Broadway, 47th Floor
                     New York, New York 10019
                     Attention: Eric Simonson, Esq.
                     Fax: (212) 586-7878

            with a copy to

            If to PRIMEDIA, to:

                     PRIMEDIA Inc.
                     745 Fifth Avenue
                     New York, New York 10151
                     Telecopy No.:
                     Confirmation No.:
                     Attention: Mr. Charles McCurdy

            with a copy to:

                     PRIMEDIA Inc.
                     745 Fifth Avenue
                     New York, New York 10151
                     Telecopy No.: (212) 745-0131
                     Confirmation No.: (212) 745-0628
                     Attention: Christopher A. Fraser, Esq.

            5.5. Separability. If any provision of this Agreement is held by any
court of competent jurisdiction to be illegal, invalid or unenforceable, such
provision shall be of no force and effect, but the illegality, invalidity or
unenforceability shall have no effect upon and shall not impair the
enforceability of any other provision of this Agreement.

            5.6. Assignment and Binding Effect. None of the parties hereto may
assign any of its rights or delegate any of its duties under this Agreement
without the prior written consent of the others. All of the terms and provisions
of this Agreement shall be binding on, and shall inure to the benefit of, the
respective successors and permitted assigns of the parties.

            5.7. No Benefit to Others. The representations, warranties,
covenants and agreements contained in this Agreement are for the sole benefit of
the parties hereto and their respective successors and permitted assigns and
they shall not be construed as conferring and are not intended to confer any
rights on any other persons.

            5.8. Counterparts. This Agreement may be executed in two (2) or more
counterparts, each of which shall be deemed an original, and each party thereto
may become a party hereto by executing a counterpart hereof. This Agreement and
any counterpart so executed shall be deemed to be one and the same instrument.
The exchange (by facsimile) of facsimile copies of executed counterparts of this
Agreement shall be deemed execution and delivery thereof, provided that receipt
of such facsimile is confirmed in writing. Original copies shall follow by
documented overnight delivery.


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            5.9. Expenses. Each party shall pay all of its respective expenses
relating to the transactions contemplated hereby including, without limitation,
the expenses of its attorneys and financial advisors.

            5.10. Interpretation. The parties hereto agree that in interpreting
this Agreement there shall be no inference against the drafting party.


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

                                  About.com, Inc.

                                  /s/ Scott Kurnit
                                  ----------------------------------
                                  Name: Scott Kurnit
                                  Title: Chairman and Chief Executive Officer


                                  PRIMEDIA Inc.

                                  /s/ Beverly C. Chell
                                  ----------------------------------
                                  Name: Beverly C. Chell
                                  Title: Vice Chairman

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