<PAGE>

                                                                     Exhibit 4.4

                                  divine, inc.

                             Data Return Corporation
                                Stock Option Plan

Explanatory Note
----------------

     On January 9, 2002, divine, inc. ("divine") acquired Data Return
Corporation ("Data Return") in a stock-for-stock merger with Data Return
surviving as a wholly owned subsidiary of divine (the "Merger"). In connection
with the Merger, each common share, par value $0.001 per share, of Data Return
has been converted into the right to receive 1.9876 shares of divine class A
common stock. Each outstanding and unexercised option to purchase common shares
of Data Return under the Data Return Corporation Stock Option Plan (the "Plan")
has been assumed by divine and was converted into an option to purchase a number
of shares of divine class A common stock equal to the number of Data Return
common shares subject to the option multiplied by the exchange ratio in the
Merger (1.9876) at an exercise price equal to the original exercise price of the
option divided by that exchange ratio.

     Other than as set forth in the paragraph above, the rights and obligations
of each holder of Data Return options granted pursuant to this Plan remain in
full force and effect.

     Section 1. Purpose. It is the purpose of the Plan to promote the interests
                -------
of divine and its shareholders by attracting, retaining, and stimulating the
performance of selected Employees and giving such Employees the opportunity to
acquire a proprietary interest in divine and an increased personal interest in
its continued success and progress. Unless otherwise specified in the option
agreement, each Option granted under the Plan will qualify as an "incentive
stock option" within the meaning of Section 422(b) of the Code.

     Section 2. Definitions. As used herein the following terms have the
                -----------
following meanings:

     (a) "Affiliate" means any parent or subsidiary corporation of the divine
     within the meaning of Section 424(e) and (f) of the Code.

     (b) "Board" means the Board of Directors of the divine.

     (c) "Code" means the Internal Revenue Code of 1986, as amended.

     (d) "Common Stock" means the class A common stock, par value $0.001 per
     share, of divine.

     (e) "Employee" means any regular salaried officer or key employee of divine
     or an Affiliate.

     (f) "Fair Market Value" means the fair market value of the subject property
     as determined in good faith by the Committee in its best judgment.

<PAGE>

     (g) "Option" means any option to purchase shares of Common Stock granted
     pursuant to the provisions of the Plan.

     (h) "Optionee" means an Employee who has been granted an Option under the
     Plan.

     Section 3. Number of Shares. Options were granted by divine to purchase an
                ----------------
aggregate of 10,527,695 shares of the authorized Common Stock. If any Option
expires or terminates for any reason without having been exercised in full, the
unpurchased shares subject to such expired or terminated Option shall be
available for purposes of the Plan.

     Section 4. Administration of the Plan. The Plan shall be administered by
                --------------------------
the Board. The following provisions shall apply to the administration of the
Plan by the Board:

     (a) The Board shall have full authority subject to the express provisions
     of the Plan to interpret the Plan, to provide, modify, and rescind rules
     and regulations relating to it; to determine the terms and provisions of
     each Option and the form of each option agreement evidencing an Option
     granted under the Plan; and to make all other determinations and perform
     such actions as the Board deems necessary or advisable to administer the
     Plan. In addition, the Board shall have full authority, subject to the
     express provisions of the Plan, to determine the Employees to whom Options
     shall be granted, the time or date of grant of each such Option, the number
     of shares subject thereto, and the price at which such shares may be
     purchased. In making such determinations, the Board may take into account
     the nature of the services rendered by the Employee, his or her present and
     potential contributions to the success of divine's business, and such other
     facts as the Board in its discretion shall deem appropriate to carry out
     the purposes of the Plan.

     (b) No member of the Board shall be liable for any action taken or
     determination made in good faith with respect to the Plan or any Option
     granted hereunder.

     Section 5. Grant of Options. At any time and from time to time during the
                ----------------
duration of the Plan and subject to the express provisions thereof, Options may
be granted by the Board to any Employee for such number of shares of Common
Stock as the Board in its discretion shall deem to be in the best interest of
divine and which will serve to further the purposes of the Plan. The Board, in
its discretion, may designate any Option so granted as an incentive stock option
intended to qualify under Section 422 of the Code.

     Section 6. Option Price. The purchase price per share of Common Stock under
                ------------
each Option shall be determined by the Board but in no event shall be less than
100% of the Fair Market Value per share of Common Stock at the time the Option
is granted; provided, however, that the purchase price per share of Common Stock
under any incentive stock option granted to an Optionee who, at the time such
incentive stock option is granted, owns stock possessing more than 10% of the
total combined voting power of all classes of stock of divine or any Affiliate
shall be at least ll0% of the Fair Market Value per share of Common Stock at the
date of grant

                                       2

<PAGE>

upon exercise of an Option, the purchase price shall be paid in full in cash or,
with the consent of the Board and if and to the extent provided for under the
option agreement for such Option, in cash and/or by delivery of shares of Common
Stock already owned by the Optionee having an aggregate Fair Market Value
(determined as of the date of exercise) equal to the purchase price, including
an actual or deemed multiple series of exchanges of such shares. The proceeds of
such sale shall constitute general funds of divine. Upon exercise of an Option,
the Optionee will be required to pay to divine the amount of any federal, state,
or local takes required by law to be withheld in connection with such exercise.

     Section 7.  Option Period and Terms of Exercise of Options. Except as
                 ----------------------------------------------
otherwise provided for herein, each Option granted under the Plan shall be
exercisable during such period commencing on or after the date of the grant of
such Option as the Board shall determine; provided, however, that the otherwise
unexpired portion of any Option shall expire and become null and void no later
than upon the first to occur of (i) the expiration of 10 years from the date
such Option was granted, (ii) the expiration of three months from the date of
the termination of the Optionee's employment with divine or an Affiliate for any
reason other than death or disability, or (iii) the expiration of one year from
the date of the termination of the Optionee's employment with divine or an
Affiliate by reason of death or disability. Anything herein to the contrary
notwithstanding, the otherwise unexpired portion of any option granted hereunder
shall expire and become null and void immediately upon an Optionee's termination
of employment with divine or an Affiliate by reason of such Optionee's fraud,
dishonesty, or performance of other acts detrimental to divine or an Affiliate,
as determined by the Board in its sole discretion. Any incentive stock option
granted to an Optionee who, at the time such incentive stock option is granted
owns stock possessing more than 10% of the total combined voting power of all
classes of stock of divine or any Affiliate shall not be exercisable after the
expiration of five years from the date of its grant. Under the provisions of any
option agreement evidencing an Option, the Board may limit the number of shares
purchasable thereunder in any period or periods of time during which the Option
is exercisable and may impose such other terms and conditions upon the exercise
of an Option and the shares to be purchased as are not inconsistent with the
terms of this Plan; provided, however, that the Board, in its discretion, may
accelerate the exercise date of any Option to any date following the date of
grant.

     Section 8.  Nontransferability of Options. An Option granted under the Plan
                 -----------------------------
shall be transferable by the Optionee only by will or by the laws of descent and
distribution and shall be exercisable during the lifetime of the Optionee only
by the Optionee, or if the Optionee is legally incompetent, by the Optionee's
legal representative.

     Section 9.  Termination of Employment. Transfers of employment between
                 -------------------------
divine and any of its Affiliates shall not be considered to be a termination of
employment for the purposes of this Plan. Nothing in the Plan or in any option
agreement evidencing an Option granted under the Plan shall confer upon any
Optionee any right to continue in the employ of divine or any Affiliate or in
any way interfere with the right of divine or any Affiliate to terminate the
employment of the Optionee at any time, with or without cause.

     Section 10. Adjustments upon Changes in Common Stock. In the event divine
                 ----------------------------------------
shall effect a split of the Common Stock or dividend payable in Common Stock, or
in the event the outstanding Common Stock shall be combined into a smaller
number of shares, the

                                       3

<PAGE>

maximum number of shares as to which Options may be granted under the Plan shall
be decreased or increased proportionately. In the event that before delivery by
divine of all of the shares of Common Stock in respect of which any Option has
been granted under the Plan, divine shall have effected such a split, dividend,
or combination, the shares still subject to such Option shall be increased or
decreased proportionately and the purchase price per share shall be decreased or
increased proportionately so that the aggregate purchase price for all of the
then optioned shares shall remain the same as immediately prior to such split,
dividend, or combination.

     In the event of a reclassification of Common Stock not covered by the
foregoing, or in the event of a liquidation or reorganization (including a
merger, consolidation, spinoff or sale of assets) of divine or an Affiliate, the
Board shall make such adjustments, if any, as it may deem appropriate in the
number, purchase price, and kind of shares covered by the unexercised portions
of Options theretofore granted under the Plan. The provisions of this Section
shall only be applicable if, and only to the extent that, the application
thereof does not conflict with any valid governmental statute, regulation or
rule.

     Section 11. Amendment and Termination of the Plan. Subject to the right of
                 -------------------------------------
the Board to terminate the Plan prior thereto, the Plan shall terminate at the
expiration of 10 years from February 20, 1998, the date of adoption of the Plan.
No Options may be granted after termination of the Plan. The Board may alter or
amend the Plan but may not without the approval of the shareholders of divine
make any alteration or amendment thereof that operates (i) to increase the total
number of shares of Common Stock that may be granted under the Plan (other than
as provided in Section 10 hereof), (ii) to extend the term of the Plan or the
maximum exercise period provided in Section 7 hereof, (iii) to decrease the
minimum purchase price provided in Section 6 hereof (other than as provided in
Section 10 hereof), or (iv) to materially modify the requirements as to
eligibility for participation in the Plan.

     No termination or amendment of the Plan shall adversely affect the rights
of an Optionee under an outstanding Option, except with the consent of such
Optionee.

     Section 12. Modification of Options. Subject to the terms and conditions of
                 -----------------------
and within the limitations of the Plan, the Board may modify, extend, or renew
outstanding Options granted under the Plan (including the conversion of an
incentive stock option qualified under Section 422 of the Code to a nonqualified
stock option), or accept the surrender of Options outstanding hereunder (to the
extent not theretofore exercised) and authorize the granting of new Options in
substitution therefor. Notwithstanding the foregoing, no modification of an
Option shall, without the consent of the Optionee, alter or impair any rights or
obligations under any Option theretofore granted to such Optionee, except as may
be necessary, with respect to incentive stock options, to satisfy the
requirements of Section 422(b) of the Code.

     Section 13. Requirements of Law. The granting of Options and the issuance
                 -------------------
of Common Stock upon the exercise of an Option shall be subject to all
applicable laws, rules and regulations and to such approval by governmental
agencies as may be required

     Section 14. Investment Letter and Legend. Divine's obligation to deliver
                 ----------------------------
Common Stock with respect to an Option shall be conditioned upon its receipt
from the Employee to

                                       4

<PAGE>

whom such Common Stock is to be delivered of an executed investment letter
containing such representations and agreements as the Board may determine to be
necessary or advisable in order to enable divine to issue and deliver such
Common Stock to such Employee in compliance with the Securities Act of 1933 and
other applicable federal, state, or local securities laws or regulations.

     Section 15. Restrictions on Transfer of Shares. The Common Stock acquired
                 ----------------------------------
pursuant to the exercise of Options shall be subject to such restrictions and
agreements regarding sale, assignment, encumbrances, or other transfer as are in
effect among the shareholders of divine at the time such Common Stock is
acquired, as well as to such other restrictions as the Board shall deem
advisable.

     Section 16. Gender. Words of any gender used in the Plan shall be construed
                 ------
to include any other gender, unless the context requires otherwise.

     IN WITNESS WHEREOF, this Plan, which was originally executed at Arlington,
Texas, on February 20, 1998, is reaffirmed and is effective as of January 9,
2002.


                                         divine, inc.

                                         By: _________________________________
                                             Its:_____________________________

                                       5