QuickLinks -- Click here to rapidly navigate through this document

Exhibit 10.2

NETRATINGS, INC.

1998 STOCK PLAN

    1.  Purposes of the Plan.  The purposes of this Stock 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 NetRatings, Inc., a Delaware corporation, or any
successor corporation thereto.

    (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.

    (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.

1

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

    (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.

    (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 1998 Stock 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.

2

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

    (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 existing, 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 5,465,000 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 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, including, without limitation, Rule 16b-3 promulgated
under the Exchange Act and Section 162(m) of the Code and the regulations
promulgated thereunder.

    (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;

3

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

    (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 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.

    (d) No Employee shall be granted, in any fiscal year of the Company, Options
and Stock Purchase Rights to purchase more than 500,000 Shares. The foregoing
limitation shall be adjusted proportionately in connection with any change in
the Company's capitalization as described in Section 12.

    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.  

    (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:

4

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

     (i) In the case of an Incentive Stock Option

    (A) 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.

    (B) 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 granted to any Service
Provider, the per Share exercise price shall b e 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 Stockholder.  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. 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 stockholder 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

5

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

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.

    (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
and 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 (which shall be no less than 85% of the Fair
Market Value per Share on the date of grant), and the time within which such
person must accept such offer. The offer shall be accepted by execution of a
Restricted Stock purchase agreement in the form determined by the Administrator.

6

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

    (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.

    (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.

    (d)  Rights as a Stockholder.  Once the Stock Purchase Right is exercised,
the purchaser shall have rights equivalent to those of a stockholder and shall
be a stockholder 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
stockholders of the Company, the number of shares of Common Stock covered by
each outstanding Option or Stock Purchase Right, the grant limit described in
Section 6(d) 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 or Stock Purchase Right until fifteen (15)
days prior to such transaction as to all of the Optioned Stock covered thereby,
including Shares as to which the Option or Stock Purchase Right 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

7

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

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 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 Service Provider 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)  Stockholder Approval.  The Board shall obtain stockholder 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 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

8

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

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

9

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

NETRATINGS, INC.
1998 STOCK PLAN
STOCK OPTION AGREEMENT

    Unless otherwise defined herein, the terms defined in the Plan shall have
the same defined meanings in this Option Agreement.

I.NOTICE OF STOCK OPTION GRANT

[Optionee's Name and Address]

    The undersigned Optionee has been granted an Option to purchase Common Stock
of the Company, subject to the terms and conditions of the Plan and this 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 shall be exercisable, in whole or in part, according to the
following vesting 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, subject to Optionee's continuing to be a Service
Provider on such dates.

Termination Period:

    This Option shall be exercisable for three months after Optionee ceases to
be a Service Provider. Upon Optionee's death or Disability, this Option may be
exercised for one year after Optionee ceases to be a Service Provider. In no
event may Optionee exercise this Option after the Term/Expiration Date as
provided above.

II.AGREEMENT

    1.  Grant of Option.  The Plan Administrator of the Company hereby grants to
the Optionee named in the Notice of Grant (the "Optionee"), an option (the
"Option") to purchase the number of Shares set forth in the Notice of Grant, at
the exercise price per Share set forth in the Notice of Grant (the "Exercise
Price"), and subject to the terms and conditions of the Plan, which is
incorporated herein by reference. Subject to Section 14(c) of the Plan, in the
event of a conflict between the terms and conditions of the Plan and this Option
Agreement, the terms and conditions of the Plan shall prevail.

    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. Nevertheless, to the

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

extent that it exceeds the $100,000 rule of Code Section 422(d), this Option
shall be treated as a Nonstatutory Stock Option ("NSO").

    2.  Exercise of Option.  

    (a)  Right to Exercise. This Option shall be exercisable during its term in
accordance with the Vesting Schedule set out in the Notice of Grant and with the
applicable provisions of the Plan and this Option Agreement.

    (b)  Method of Exercise. This Option shall be exercisable by delivery of an
exercise notice in the form attached as Exhibit A (the AExercise Notice@) which
shall state the election to exercise the Option, the number of Shares with
respect to which the Option is being exercised, and such other representations
and agreements as may be required by the Company. The Exercise Notice shall be
accompanied by payment of the aggregate Exercise Price as to all Exercised
Shares. This Option shall be deemed to be exercised upon receipt by the Company
of such fully executed Exercise Notice accompanied by the aggregate Exercise
Price.

    No Shares shall be issued pursuant to the exercise of an Option unless such
issuance and such exercise complies with Applicable laws. 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 have not been
registered under the Securities Act of 1933, as amended, at the time this Option
is exercised, the 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.  Lock-Up Period.  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
other period 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. Such restriction shall apply only to the first registration
statement of the Company to become effective under the Securities Act that
includes 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.  Method of Payment.  Payment of the aggregate Exercise Price shall be by
any of the following, or a combination thereof, at the election of the Optionee:

    (a) cash or check;

    (b) to the extent permitted by the Administrator, 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.

    6.  Restrictions on Exercise.  This Option may not be exercised until such
time as the Plan has been approved by the shareholders of the Company, or 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
Law.

    7.  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

2

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

Optionee only by Optionee. The terms of the Plan and this Option Agreement shall
be binding upon the executors, administrators, heirs, successors and assigns of
the Optionee.

    8.  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.

    9.  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. THE OPTIONEE SHOULD CONSULT A
TAX ADVISER BEFORE EXERCISING THIS OPTION OR DISPOSING OF THE SHARES.

    (a)  Exercise of 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 Nonstatutory Stock Option. There may be a regular federal
income tax liability upon the exercise of a Nonstatutory Stock Option. 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 or a former 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 in cash equal to a percentage of this compensation
income at the time of exercise, and may refuse to honor the exercise and refuse
to deliver Shares if such withholding amounts are not delivered at the time of
exercise.

    (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 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 one year after exercise or 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 (1) the Fair Market Value of the Shares on the
date of exercise, or (2) the sale price of the Shares. Any additional gain will
be taxed as capital gain, short-term or long-term depending on the period that
the ISO Shares were held.

    (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 (1) the date two years after the Date of Grant, or (2) 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.

    10.  Entire Agreement; Governing Law.  The Plan is incorporated herein by
reference. The Plan and this Option Agreement 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. This agreement is governed by the internal substantive laws but not
the choice of law rules of California.

3

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

    11.  No Guarantee of Continued Service.  OPTIONEE ACKNOWLEDGES AND AGREES
THAT THE VESTING OF SHARES PURSUANT TO THE VESTING SCHEDULE HEREOF IS EARNED
ONLY BY CONTINUING AS A SERVICE PROVIDER 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 THIS AGREEMENT, THE
TRANSACTIONS CONTEMPLATED HEREUNDER AND THE VESTING SCHEDULE SET FORTH HEREIN DO
NOT CONSTITUTE AN EXPRESS OR IMPLIED PROMISE OF CONTINUED ENGAGEMENT AS A
SERVICE PROVIDER FOR THE VESTING PERIOD, FOR ANY PERIOD, OR AT ALL, AND SHALL
NOT INTERFERE IN ANY WAY WITH OPTIONEE'S RIGHT OR THE COMPANY'S RIGHT TO
TERMINATE OPTIONEE'S RELATIONSHIP AS A SERVICE PROVIDER AT ANY TIME, WITH OR
WITHOUT CAUSE.

    Optionee acknowledges receipt of a copy of the Plan and represents that he
or she 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.

OPTIONEE:   NETRATINGS, INC.

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

 

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

Signature   By

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

 

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

Print Name   Title

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

 
 

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

 
  Residence Address    

4

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

EXHIBIT A
1998 STOCK PLAN
EXERCISE NOTICE

NetRatings, Inc.
Suite 183
830 Hillview Court
Milpitas, CA 95035

Attention: Corporate Secretary

    1.  Exercise of Option.  Effective as of today,              , 19    , the
undersigned ("Optionee") hereby elects to exercise Optionee's option to
purchase         shares of the Common Stock (the "Shares") of NetRatings, Inc.
(the "Company") under and pursuant to the 1998 Stock Plan (the "Plan") and the
Stock Option Agreement dated              , 19    (the "Option Agreement").

    2.  Delivery of Payment.  Purchaser herewith delivers to the Company the
full purchase price of 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 ("Proposed Transferee"); (iii) the number
of Shares to be transferred to each Proposed Transferee; 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 ("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.

1

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

    (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 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 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 (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 A RIGHT OF FIRST REFUSAL HELD BY THE ISSUER OR ITS ASSIGNEE(S)
AS SET FORTH IN THE EXERCISE NOTICE

2

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

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.

    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 Option Agreement are incorporated
herein by reference. This Agreement, the Plan, the Option Agreement 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.

Submitted by:   Accepted by:
OPTIONEE:
 
NETRATINGS, INC.

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

 

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

Signature   By

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

 

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

Print Name   Its
Address:
 
 

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

 
 

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

 
 

3

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

EXHIBIT B
INVESTMENT REPRESENTATION STATEMENT

OPTIONEE:            

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

   
COMPANY:
 
NETRATINGS, 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:

    (a) 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").

    (b) 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, a legend prohibiting their transfer without the
consent of the Commissioner of Corporations of the State of California and any
other legend required under applicable state securities laws.

    (c) 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, 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

1

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

transaction" or in transactions directly with a market maker (as said term is
defined under the Securities Exchange Act of 1934); 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.

    (d) 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 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:
 
 

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

 
 
Date:               , 19    

2

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

QuickLinks

NETRATINGS, INC. 1998 STOCK PLAN