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                                                                   Exhibit 10.13


                            SCREAMING MEDIA.NET, INC.
                             1999 STOCK OPTION PLAN

                  1.  Purpose of the Plan.

                  This stock option plan (the "Plan") is intended to encourage
ownership of the stock of Screaming Media.Net, Inc., a Delaware corporation (the
"Company"), by employees, officers, directors, consultants and advisors of the
Company and its subsidiaries, to induce qualified personnel to enter and remain
in the employ of the Company or its subsidiaries and otherwise to provide
additional incentive for optionees to promote the success of the Company's
business.

                  2. Stock Subject to the Plan.

                           (a) The shares of the Common Stock, $.01 par value,
of the Company ("Common Stock") for which options may be granted under the Plan
shall be either authorized but unissued shares or treasury shares. The number of
such shares for which options may be granted under the Plan shall not exceed
three hundred thousand (300,000) shares of Common Stock, subject to adjustment
as provided in Section 12 hereof.

                           (b) If an option granted or assumed hereunder shall
expire, terminate or become unexercisable for any reason without having been
exercised in full, the unpurchased shares which were subject thereto shall,
unless the Plan shall have been terminated, again be available for subsequent
option grants under the Plan.

                           (c) Stock issuable upon exercise of an option granted
under the Plan may be subject to such restrictions on transfer, repurchase
rights or other restrictions as shall be determined by the Committee, as defined
below.
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                  3. Administration of the Plan.

                  The Plan shall be administered by a committee (the
"Compensation Committee") appointed by the Company's Board of Directors
consisting of two or more members of the Company's Board of Directors.

                  The Board of Directors may from time to time appoint a member
or members of the Committee in substitution for or in addition to the member or
members then in office and may fill vacancies on the Committee however caused.
The Committee shall choose one of its members as Chairman and shall hold
meetings at such times and places as it shall deem advisable. A majority of the
members of the Committee shall constitute a quorum and any action may be taken
by a majority of those present and voting at any meeting. Any action may also be
taken without the necessity of a meeting by a written instrument signed by a
majority of the Committee's members. The decision of the Committee as to all
questions of interpretation and application of the Plan shall be final, binding
and conclusive on all persons. The Committee shall have the authority to adopt,
amend and rescind such rules and regulations as, in its opinion, may be
advisable in the administration of the Plan. The Committee may correct any
defect or supply any omission or reconcile any inconsistency in the Plan or in
any option agreement granted here under in the manner and to the extent it shall
deem expedient to carry the Plan into effect and shall be the sole and final
judge of such expediency. No Committee member shall be liable for any action or
determination made in good faith.

                  4.  Type of Options.

                  Options granted pursuant to the Plan shall be authorized by
action of the Committee and may be designated as either incentive stock options
meeting the requirements of Section 422 of the Internal Revenue Code of 1986
(the "Code") or non-qualified

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options which are not intended to meet the requirements of such Section 422 of
the Code, the designation to be in the sole discretion of the Committee.

                  5.  Eligibility.

                  Options designated as incentive stock options may be granted
only to officers who are employees of the Company or any subsidiary corporation
(herein called "subsidiary" or "subsidiaries"), as defined in Section 424 of the
Code and the Treasury Regulations promulgated thereunder (the "Regulations"),
and other employees of the Company or of any subsidiary who are designated as
"key employees" by the Compensation Committee.

                  Options designated as non-qualified options may be granted to
officers, employees, directors, consultants, advisors and representatives of the
Company or of any of its subsidiaries.

                  In determining the eligibility of an individual to be granted
an option, as well as in determining the number of shares to be optioned to any
individual, the Committee shall take into account the position and
responsibilities of the individual being considered, the nature and the value to
the Company or its subsidiaries of his or her service and accomplishments, his
or her present and potential contribution to the success of the Company or its
subsidiaries, and such other factors as the Committee may deem relevant.

                  No option designated as an incentive stock option shall be
granted to any employee of the Company or any subsidiary if such employee owns,
immediately prior to the grant of an option, stock representing more than 10% of
the total combined voting power of all classes of stock of the Company or a
parent or a subsidiary, unless the purchase price for the stock under such
option shall be at least 110% of its fair market value at the time such option
is granted and the option, by its terms, shall not be exercisable

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more than five years from the date it is granted. In determining the stock
ownership under this paragraph, the provisions of Section 424(d) of the Code
shall apply. In determining the fair market value under this paragraph, the
provisions of Section 7 hereof shall apply.

                  6.  Option Agreement.

                  Each option shall be evidenced by an option agreement (the
"Agreement") duly executed on behalf of the Company and by the optionee to whom
such option is granted, which Agreement shall comply with and be subject to the
terms and conditions of the Plan. The Agreement shall set forth the number of
shares of Common Stock to which it applies, and the conditions and circumstances
under which the option may be exercised. The Agreement may contain such other
terms, provisions and conditions which are not inconsistent with the Plan as may
be determined by the Committee, provided that options designated as incentive
stock options shall meet all of the conditions for incentive stock options as
defined in Section 422 of the Code. The date of grant of an option shall be as
determined by the Committee. More than one option may be granted to an
individual.

                  7. Option Price.

                  The option price or prices of shares of the Company's Common
Stock for incentive stock options shall be the fair market value of such Common
Stock at the time the option is granted as determined by the Committee in
accordance with the Regulations promulgated under Section 422 of the Code. The
fair market value per Share shall be the mean of the bid and asked prices of the
Common Stock in the over-the-counter market on the date of grant, as reported in
The Wall Street Journal (or, if not so reported, as other wise reported by the
National Association of Securities Dealers Automated Quotation ("NASDAQ")
System) or, in the event that the Common Stock is traded on the NASDAQ

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National Market System or listed on a stock exchange, the fair market value per
Share shall be the closing price on the largest such system or exchange on the
date of grant of the Option, as reported in The Wall Street Journal, provided,
however, that if such market or exchange is closed on the date of the grant of
the Option then the fair market value per Share shall be based on the most
recent date on which such trading occurred immediately prior to the date of the
grant of the Option; provided, further, that if the fair market value cannot be
determined in accordance with the forgoing, it shall be determined in good faith
by the Board. If the fair market value cannot be determined under the preceding
sentence, it shall be determined in good faith by the Committee. The option
price or prices of shares of the Company's Common Stock for non-qualified stock
options shall be at least 85% of the fair market value on the date of grant, as
determined by the Committee in accordance with the preceding two sentences.

                  8. Manner of Payment; Manner of Exercise.

                           (a) Options granted under the Plan may provide for
the payment of the exercise price by delivery of (i) cash or a check payable to
the order of the Company in an amount equal to the exercise price of such
options, (ii) a promissory note in an amount equal to the exercise price of such
options, (iii) shares of Common Stock of the Company owned by the optionee
having a fair market value equal in amount to the exercise price of the options
being exercised, or (iv) any combination of (i), (ii) and (iii), provided,
however, that payment of the exercise price by delivery of a promissory note or
shares of Common Stock of the Company owned by such optionee may be made only
under such circumstances, if any, and on such terms as may from time to time be
established by the Committee. The fair market value of any shares of the
Company's Common Stock which may be delivered upon exercise of an option shall
be determined by the Committee in accordance with Section 7 hereof.

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                           (b) To the extent that the right to purchase shares
under an option has accrued and is in effect, options may be exercised in full
at one time or in part from time to time, by giving written notice, signed by
the person or persons exercising the option, to the Company, stating the number
of shares with respect to which the option is being exercised, accompanied by
payment in full for such shares as provided in subparagraph (a) above. Upon such
exercise, delivery of a certificate for paid-up non-assessable shares shall be
made at the principal office of the Company to the person or persons exercising
the option at such time, during ordinary business hours, within thirty (30) days
from the date of receipt of the notice by the Company, as shall be designated in
such notice, or at such time, place and manner as may be agreed upon by the
Company and the person or persons exercising the option.

                  9.  Exercise of Options.

                  Each option granted under the Plan shall, subject to Section
10(b) and Section 12 hereof, be exercisable at such time or times and during
such period as shall be set forth in the Agreement; provided, however, that no
option granted under the Plan shall have a term in excess of ten (10) years from
the date of grant.

                  To the extent that an option to purchase shares is not
exercised by an optionee when it becomes initially exercisable, it shall not
expire but shall be carried forward and shall be exercisable, on a cumulative
basis, until the expiration of the exercise period. No partial exercise may be
made for less than twenty-five (25) full shares of Common Stock.

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                  10.  Term of Options; Exercisability.

                           (a) Term.

                                    (i) Each option shall expire not more than
         ten (10) years from the date of the granting thereof, but shall be
         subject to earlier termination as herein provided.

                                    (ii) Except as otherwise provided in this
         Section 10, an option granted to any employee optionee who ceases for
         any reason to be an employee of the Company or one of its subsidiaries
         shall terminate immediately on the date such optionee ceases to be an
         employee of the Company or one of its subsidiaries, or on the date on
         which the option expires by its terms, whichever occurs first.

                                    (iii) If such termination of employment is
         because the optionee has become permanently disabled (within the
         meaning of Section 22(e)(3) of the Code), such option shall terminate
         on the last day of the twelfth month from the date such optionee ceases
         to be an employee, or on the date on which the option expires by its
         terms, whichever occurs first.

                                    (iv) If the employment of an employee
         optionee is terminated by a successor entity within six months of the
         date on which there occurs a hostile change of control of the Company
         (whether by tender offer for more than 50% of the outstanding voting
         stock, proxy contest for the election of Board members or other means
         lacking the approval of the Board of Directors of the Company), any
         options assumed or replaced in connection with such acquisition shall
         be subject to immediate acceleration, and any shares which are not
         vested at the time of such termination shall automatically vest in full
         and may be exercised

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         by the optionee at any time during the three month period after the
         date of termination of such optionee's employment.

                                    (v) In the event of the death of any
         optionee, any option granted to such optionee shall terminate on the
         last day of the twelfth month from the date of death, or on the date on
         which the option expires by its terms, whichever occurs first.

                                    (vi) Notwithstanding the provisions of
         Section 10(a)(ii), with respect to a particular option under the Plan,
         the Committee may permit a recipient to exercise an option after
         termination of employment.

                           (b) Exercisability. Except as the Committee may
otherwise determine is appropriate with respect to a particular option under the
Plan, an option granted to an employee optionee who ceases to be an employee of
the Company or one of its subsidiaries shall be exercisable only to the extent
that the right to purchase shares under such option has accrued and is in effect
on the date such optionee ceases to be an employee of the Company or one of its
subsidiaries.

                  11.  Options Not Transferable.

                  The right of any optionee to exercise any option granted to
him or her shall not be assignable or transferable by such optionee otherwise
than by will or the laws of descent and distribution, or the rules thereunder,
and any such option shall be exercisable during the lifetime of such optionee
only by him or her. Any option granted under the Plan shall be null and void and
without effect upon the bankruptcy of the optionee to whom the option is
granted, or upon any attempted assignment or transfer, except as herein
provided, including without limitation any purported assignment, whether
voluntary or by operation of law, pledge, hypothecation or other disposition,
attachment, divorce, trustee process or similar process, whether legal or
equitable, upon such option.

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                  12. Recapitalizations, Reorganizations and the Like.

                           (a) In the event that the outstanding shares of the
Common Stock of the Company are changed into or exchanged for a different number
or kind of shares or other securities of the Company or of another corporation
by reason of any reorganization, merger, consolidation, recapitalization,
reclassification, stock split-up, combination of shares, or dividends payable in
capital stock, appropriate adjustment shall be made in the number and kind of
shares as to which options may be granted under the Plan and as to which
outstanding options or portions thereof then unexercised shall be exercisable,
to the end that the proportionate interest of the optionee shall be maintained
as before the occurrence of such event; such adjustment in outstanding options
shall be made without change in the total price applicable to the unexercised
portion of such options and with a corresponding adjustment in the option price
per share.

                           (b) In addition, unless otherwise determined by the
Committee in its sole discretion, in the case of any (i) sale or conveyance to
another entity of all or substantially all of the property and assets of the
Company or (ii) Change in Control (as hereinafter defined) of the Company, the
purchaser(s) of the Company's assets or stock may, in his, her or its
discretion, deliver to the optionee the same kind of consideration that is
delivered to the holders of Common Stock of the Company as a result of such
sale, conveyance or Change in Control, which consideration shall be equal in
value to the value of those shares of stock or other securities the optionee
would have received had the option been exercised in full and no disposition of
the shares acquired upon such exercise been made prior to such sale, conveyance
or Change in Control, less the option price therefor. Upon receipt of such
consideration by the optionee, his or her option shall immediately terminate and
be of no further force and effect. The value of the stock or other securities
the optionee would have received if the option had been exercised shall be
determined in

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good faith by the Committee of the Company, and in the case of shares of the
Common Stock of the Company, in accordance with the provisions of Section 7
hereof. The Committee shall also have the power and right, but not the
obligation, to accelerate the exercisability of any options, notwithstanding
any limitations in this Plan or in the Agreement upon a merger, consolidation,
sale of all or substantially all of the property and assets of the Company or
Change in Control. Upon a Change of Control, any options or portion thereof
originally designated as incentive stock options that no longer qualify as
incentive stock options under Section 422 of the Code as a result of such Change
of Control shall be redesignated as non-qualified stock options. In the event of
a hostile change in control of the Company (whether by tender offer for more
than 50% of the outstanding voting stock, proxy contest for the election of
Board members or other means lacking the approval of the Board of Directors of
the Company), each outstanding option under this Plan shall automatically
accelerate in full and unvested shares shall vest in full immediately. A
"Change in Control" shall be deemed to have occurred if any person, or any two
or more persons acting as a group, and all affiliates of such person or persons,
who prior to such time owned less than fifty percent (50%) of the then
outstanding Common Stock of the Company, shall acquire such additional shares of
the Company's Common Stock in one or more transactions, or series of
transactions, such that following such transaction or transactions, such person
or group and affiliates beneficially own more than fifty percent (50%) of the
Company's Common Stock outstanding.

                           (c) Upon dissolution or liquidation of the Company,
all options granted under this Plan shall terminate, but each optionee (if at
such time in the employ of or otherwise associated with the Company or any of
its subsidiaries) shall have the right, immediately prior to such dissolution or
liquidation, to exercise his or her option to the extent then exercisable.

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                           (d) If by reason of a corporate merger,
consolidation, acquisition of property or stock, separation, reorganization, or
liquidation, the Committee shall authorize the issuance or assumption of a
stock option or stock options in a transaction to which Section 424(a) of the
Code applies, then, notwithstanding any other provision of the Plan, the
Committee may grant an option or options upon such terms and conditions as it
may deem appropriate for the purpose of assumption of the old option, or
substitution of a new option for the old option, in conformity with the
provisions of such Section 424(a) of the Code and the Regulations thereunder,
and any such option shall not reduce the number of shares otherwise available
for issuance under the Plan.

                           (e) No fraction of a share shall be purchasable or
deliverable upon the exercise of any option, but in the event any adjustment
hereunder of the number of shares covered by the option shall cause such number
to include a fraction of a share, such fraction shall be adjusted to the nearest
smaller whole number of shares.

                  13.  No Special Employment Rights.

                  Nothing contained in the Plan or in any option granted under
the Plan shall confer upon any option holder any right with respect to the
continuation of his or her employment by the Company (or any subsidiary) or
interfere in any way with the right of the Company (or any subsidiary), subject
to the terms of any separate employment agreement to the contrary, at any time
to terminate such employment or to increase or decrease the rate of compensation
of the option holder from the rate of compensation in existence at the time of
the grant of an option. Whether an authorized leave of absence, or absence in
military or government service, shall constitute termination of employment shall
be deter mined by the Committee at the time.

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                  14.  Withholding.

                  The Company's obligation to deliver shares upon the exercise
of any non-qualified option granted under the Plan shall be subject to the
option holder's satisfaction of all applicable Federal, state and local income
and employment tax withholding requirements. The Company and employee may agree
to withhold shares of Common Stock purchased upon exercise of an option to
satisfy the above-mentioned withholding requirements. With the approval of the
Committee, which it shall have sole discretion to grant, and on such terms and
conditions as the Committee may impose, the option holder may satisfy the
foregoing condition by electing to have the Company withhold from delivery
shares having a value equal to the amount of tax to be withheld. The Committee
shall also have the right to require that shares be withheld from delivery to
satisfy such condition.

                  15. Restrictions on Issue of Shares.

                           (a) Notwithstanding the provisions of Section 8, the
Company may delay the issuance of shares covered by the exercise of an option
and the delivery of a certificate for such shares until one of the following
conditions shall be satisfied:

                                    (i) The shares with respect to which such
         option has been exercised are at the time of the issue of such shares
         effectively registered or qualified under applicable Federal and state
         securities acts now in force or as hereafter amended; or

                                    (ii) Counsel for the Company shall have
         given an opinion, which opinion shall not be unreasonably conditioned
         or withheld, that such shares are exempt from registration and
         qualification under applicable Federal and state securities acts now in
         force or as hereafter amended.

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                           (b) It is intended that all exercises of options
shall be effective, and the Company shall use its best efforts to bring about
compliance with the above conditions within a reasonable time, except that the
Company shall be under no obligation to qualify shares or to cause a
registration statement or a post-effective amendment to any registration
statement to be prepared for the purpose of covering the issue of shares in
respect of which any option may be exercised, except as otherwise agreed to by
the Company in writing.

                  16. Purchase for Investment; Rights of Holder on Subsequent
Registration.

                  Unless the shares to be issued upon exercise of an option
granted under the Plan have been effectively registered under the Securities Act
of 1933, as now in force or hereafter amended, the Company shall be under no
obligation to issue any shares covered by any option unless the person who
exercises such option, in whole or in part, shall give a written representation
and undertaking to the Company which is satisfactory in form and scope to
counsel for the Company and upon which, in the opinion of such counsel, the
Company may reasonably rely, that he or she is acquiring the shares issued
pursuant to such exercise of the option for his or her own account as an
investment and not with a view to, or for sale in connection with, the
distribution of any such shares, and that he or she will make no transfer of the
same except in compliance with any rules and regulations in force at the time of
such transfer under the Securities Act of 1933, or any other applicable law, and
that if shares are issued without such registration, a legend to this effect may
be endorsed upon the securities so issued. In the event that the Company shall,
nevertheless, deem it necessary or desirable register under the Securities Act
of 1933 or other applicable statutes any shares with respect to which an option
shall have been exercised, or to qualify any such shares for exemption from the
Securities Act of 1933 or other applicable statutes, then the Company may take
such action and may require from each

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optionee such information in writing for use in any registration statement,
supplementary registration statement, prospectus, preliminary prospectus or
offering circular as is reasonably necessary for such purpose and may require
reasonable indemnity to the Company and its officers and directors and
controlling persons from such holder against all losses, claims, damages and
liabilities arising from such use of the information so furnished and caused by
any untrue statement of any material fact therein or caused by the omission to
state a material fact required to be stated therein or necessary to make the
statements therein not misleading in the light of the circumstances under which
they were made.

                  17.  Loans.

                  The Company may not make loans to optionees to permit them to
exercise options.

                  18.  Modification of Outstanding Options.

                  The Committee may authorize the amendment of any outstanding
option with the consent of the optionee when and subject to such conditions as
are deemed to be in the best interests of the Company and in accordance with the
purposes of this Plan.

                  19.  Approval of Stockholders.

                  The Plan shall be subject to approval by the vote of
stockholders holding at least a majority of the voting stock of the Company
voting in person or by proxy at a duly held stockholders' meeting, or by written
consent of a majority of all the stockholders, within twelve (12) months after
the adoption of the Plan by the Board of Directors and shall take effect as of
the date of adoption by the Board of Directors upon such approval. The
Committee may grant options under the Plan prior to such approval, but any such
option shall become effective as of the date of grant only upon such approval
and, accordingly, no such option may be exercisable prior to such approval.

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                  20.  Termination and Amendment.

                  Unless sooner terminated as herein provided, the Plan shall
terminate ten (10) years from the date upon which the Plan was duly adopted by
the Board of Directors of the Company. The Board of Directors may at any time
terminate the Plan or make such modification or amendment thereof as it deems
advisable; provided, however, that except as provided in this Section 20, the
Board of Directors may not, without the approval of the stockholders of the
Company obtained in the manner stated in Section 19, increase the maximum number
of shares for which options may be granted or change the designation of the
class of persons eligible to receive options under the Plan, or make any other
change in the Plan which requires stockholder approval under applicable law or
regulations, including any approval requirement which is a prerequisite for
exemptive relief under Section 16 of the Securities Exchange Act of 1934. The
Committee may grant options to persons subject to Section 16(b) of the
Securities and Exchange Act of 1934 after an amendment to the Plan by the Board
of Directors requiring stockholder approval under Section 20, but any such
option shall become effective as of the date of grant only upon such approval
and, accordingly, no such option may be exercisable prior to such approval. The
Committee may terminate, amend or modify any outstanding option without the
consent of the option holder, provided, however, that, except as provided in
Section 12, without the consent of the optionee, the Committee shall not change
the number of shares subject to an option, nor the exercise price thereof, nor
extend the term of such option.

                  21. Compliance with Rule 16b-3.

                  It is intended that the provisions of the Plan and any option
granted there under to a person subject to the reporting requirements of Section
16(a) of the Act shall comply in all respects with the terms and conditions of
Rule 16b-3 under the Securities

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Exchange Act of 1934 (the "Act"), or any successor provisions. Any agreement
granting options shall contain such provisions as are necessary or appropriate
to assure such compliance. To the extent that any provision hereof is found not
to be in compliance with such Rule, such provision shall be deemed to be
modified so as to be in compliance with such Rule, or if such modification is
not possible, shall be deemed to be null and void, as it relates to a recipient
subject to Section 16(a) of the Act.

                  22.  Reservation of Stock.

                  The Company shall at all times during the term of the Plan
reserve and keep available such number of shares of stock as will be sufficient
to satisfy the requirements of the Plan and shall pay all fees and expenses
necessarily incurred by the Company in connection therewith.

                  23. Limitation of Rights in the Option Shares.

                  An optionee shall not be deemed for any purpose to be a
stockholder of the Company with respect to any of the options except to the
extent that the option shall have been exercised with respect thereto and, in
addition, a certificate shall have been issued theretofore and delivered to the
optionee.

                  24.  Notices.

                  Any communication or notice required or permitted to be given
under the Plan shall be in writing, and mailed by registered or certified mail
or delivered by hand, if to the Company, to its principal executive offices,
attention: President, and, if to an optionee, to the address as appearing on the
records of the Company.

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