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                                                                   EXHIBIT 10.22

THIS NOTE HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933,THIS NOTE HAS
NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"),
AND MAY NOT BE SOLD, TRANSFERRED OR ASSIGNED UNLESS SO REGISTERED OR AN
EXEMPTION FROM REGISTRATION UNDER THE ACT IS AVAILABLE.

                                  ZEFER Corp.

           Convertible Subordinated Promissory Note Due May 28, 2002


$2,000,000                                                Boston, Massachusetts
                                                                   May 28, 1999


     ZEFER Corp., a Delaware corporation (the "Company"), for value received,
hereby promises to pay to Renaissance Worldwide, Inc. ("Renaissance"), or its
registered assigns (the "Holder"), the principal sum of Two Million Dollars
($2,000,000) in eight equal quarterly installments of $250,000 on the 28th day
of May, August, November and February (each a "Quarterly Payment Date")
commencing on May __, 2000, and to pay interest (computed on the basis of a 365-
day year) from the date hereof on the unpaid balance of such principal amount
from time to time outstanding at the rate equal to the 30-day LIBOR rate, as
announced by The Wall Street Journal, plus 200 basis points per annum, on each
Quarterly Payment Date commencing August 28, 1999 and continuing until May 28,
2002.

     This Note has been issued by the Company in connection with the Asset
Purchase Agreement, dated as of May 19, 1999, among the Company, Renaissance and
Neoglyphics Media Corporation (the "Purchase Agreement"), and in conjunction
with (i) the Agreement to be Bound by Registration Agreement, dated May 28,
1999, among Renaissance and certain existing stockholders of the Company (the
"GTCR Partners") and (ii) the Agreement to be Bound by Stockholders Agreement,
dated May 28, 1999, among Renaissance and the GTCR Partners, reference to each
of which is made for a statement of certain additional rights and benefits to
which the Holder is entitled.
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1.   Subordination.
     -------------

     The Holder agrees that it will, without payment of additional
consideration, agree to such customary subordination provisions as any holder of
Senior Indebtedness (as defined below) may from time to time request and, the
Holder shall execute and deliver to any holder of Senior Indebtedness (i) any
such instrument as such holder of Senior Indebtedness may request in order to
confirm the subordination of this Note to such Senior Indebtedness upon the
terms so agreed, and (ii) any powers of attorney specifically confirming the
rights of holders of Senior Indebtedness to enforce such subordination and all
such proofs of claim, assignments of claim and other instruments as may be
requested by the holders of Senior Indebtedness or their representatives to
enforce all claims upon or in respect of this Note. "Senior Indebtedness" means
the principal of, and premium, if any, and interest on (i) all indebtedness of
the Company for monies borrowed from banks, trust companies, insurance companies
and other financial institutions, including commercial paper and accounts
receivable sold or assigned by the Company to such institutions, (ii)
obligations of the Company as lessee under capital leases, (iii) principal of,
and premium, if any, and interest on any indebtedness or obligations of others
of the kinds described in (i) and (ii) above assumed or guaranteed in any manner
by the Company, (iv) deferrals, renewals, extensions and refundings of any such
indebtedness of the Company which the Company and the holder this Note may
hereafter from time to time expressly and specifically agree in writing shall
constitute Senior Indebtedness.

2.   Conversion.
     ----------

     (a)  Subject to and in compliance with the provisions of this Section 2,
prior to the payment in full of the principal amount of this Note, the Holder
may convert the outstanding principal amount of this Note, in whole or in part,
into such number of fully paid, nonassessable shares of common stock, $.01 par
value per share ("Common Stock"), of the Company as is determined by dividing
the aggregate principal amount to be so converted by the applicable Conversion
Price (as defined below and as adjusted pursuant to the provision of Section
2(c)).

     (b)  If, prior to May __, 2002, the Company files a registration statement
for an initial public offering, of its Common Stock ("IPO"), the Company shall,
within five business days of the initial filing of such registration statement,
send written notice of such filing (the "Filing Notice") to the Holder. The
Holder shall, within 30 days from the date of receipt of the Filing Notice (but
in any event no later than the printing of the red herring prospectus for the
IPO), determine whether or not it will convert the outstanding principal amount
of this Note, in whole or in part, into shares of Common Stock in accordance
with this Section 2 and shall send an irrevocable, written notice to the Company
of such election (the "Election Notice"). If, upon the expiration of such 30-day
period, the Holder has not elected to convert this

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Note into shares of Common Stock or has not notified the Company of its
election, the Holder shall forfeit, its right to convert this Note into Common
Stock hereunder. If the Holder has elected to convert this Note into shares of
Common Stock pursuant to this Section 2(a), such conversion shall become
effective immediately prior to the effectiveness of the registration statement
for the IPO.

     (c)  For purposes of this Section 2, the "Conversion Price" at which Common
Stock shall be issuable upon conversion of this Note shall be equal to the
product of (A) the per share price to the public of the Common Stock in the IPO
and (B) .8. The Holder and the Company expressly acknowledge and agree that any
rights under this Section 2 are conditioned upon the closing of the IPO.

     (d)  Surrender of Note and Delivery of Certificates.  When surrendered for
          ----------------------------------------------
conversion this Note shall, unless the shares issuable on conversion are to be
issued in the same name as the name in which this Note is then registered, be
duly endorsed by, or accompanied by instruments of transfer in form satisfactory
to the Company duly executed by, the Holder or his or its duly authorized
attorney. As promptly as practicable after the surrender of this Note for
conversion and the receipt of the Election Notice, the Company shall deliver or
cause to be delivered at its principal executive office to the Holder, or on the
Holder's written order, a certificate or certificates for the number of full
shares issuable upon the conversion of this Note, or portion hereof, in
accordance with the provisions hereof. Such conversion shall be deemed to have
been made at the time this Note shall have been surrendered for conversion and
the Election Notice shall have been received by the Company at its principal
executive office (the "Conversion Date"), and the Holder in whose name any
certificate or certificates for shares of Common Stock shall be issuable upon
such conversion shall be deemed to have become on the Conversion Date the holder
of record of the shares represented thereby. If less than the entire outstanding
principal amount of this Note is being converted, a new Note shall promptly be
delivered to the holder for the unconverted principal balance and shall be of
like tenor as to all terms as the Note surrendered.

     (e)  Adjustment of Conversion Price.
          ------------------------------

          (i)  In case the Company shall:

               (A)  declare a dividend of Common Stock on its Common Stock;

               (B)  subdivide outstanding Common Stock into a larger number of
          shares of Common Stock by reclassification, stock split or otherwise;
          or

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               (C)  combine outstanding Common Stock into a smaller number of
          shares of Common Stock by reclassification, reverse stock split or
          otherwise, the number of shares of Common Stock issuable upon
          conversion of this Note immediately prior to any such event shall be
          adjusted proportionately so that thereafter the Holder shall be
          entitled to receive upon conversion of this Note the number of shares
          of Common Stock which such Holder would have owned after the happening
          of any of the events described above had this Note been converted
          immediately prior to the happening of such event; provided, however,
          that the Conversion Price shall in no event be reduced to less than
          the par value of the shares issuable upon conversion. An adjustment
          made pursuant to this Section 2(c) shall become effective immediately
          after the record date in the case of a dividend and shall become
          effective immediately after the effective date in the case of a
          subdivision or combination.

          (ii) If, prior to maturity of this Note, the Company shall at any time
consolidate or merge with another corporation (other than a merger or
consolidation in which the Company is the surviving corporation), the Holder
will thereafter be entitled to receive, upon the conversion hereof, the
securities or property to which a holder of the number of shares of Common Stock
then deliverable upon the conversion hereof would have been entitled upon such
consolidation or merger, and the Company shall take such steps in connection
with such consolidation or merger as may be necessary to ensure that the
provisions hereof shall thereafter be applicable, as nearly as reasonably may
be, in relation to any securities or property thereafter deliverable upon the
conversion of this Note.

     (f)  Notice. In case the Company proposes to take any action referred to in
          ------
Section 2(c) above, or to effect the liquidation, dissolution or winding up of
the Company, then the Company shall cause notice thereof to be mailed to the
Holder, at such Holder's address appearing in the Note Register, at least twenty
(20) days prior to the date on which the transfer books of the Company shall
close or a record be taken for such stock dividend or the date when such
reclassification, liquidation, dissolution or winding up shall be effective, as
the case may be.

     (g)  Statement of Adjustment.  Whenever the Conversion Price shall be
          -----------------------
adjusted as provided in Section 2(c) above, the Company shall forthwith file at
each office designated for the conversion of Subordinated Notes, a statement,
signed by the Chairman of the Board, the President, any Vice President, the
Treasurer or Secretary of the Company, showing in reasonable detail the facts
requiring such adjustment and the Conversion Price that will be effective after
such adjustment. The Company shall also cause a notice setting forth any such
adjustment to be sent by mail, first class, postage prepaid, to each record
holder of Subordinated Notes at his or its address appearing on the Note
Register. Where appropriate, such notice may

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be given in advance and may be included as part of a notice required to be
mailed under the provisions of Section 2(d) hereof.

     (h)  Fractional Shares.  No fractional shares of Common Stock shall be
          -----------------
issuable upon conversion of this Note, but a payment in cash will be made in
respect of any fraction of a share which would otherwise be issuable upon the
surrender of this Note, or portion hereof, for conversion. Such payment shall be
based on the fair market value of the Common Stock at the time of conversion of
this Note, as determined in good faith by the Board of Directors.

     (i)  Accrued Interest. Upon the conversion of this Note, the Company shall
          ----------------
not be required to pay any accrued but unpaid interest on the amount so
converted up to the Conversion Date.

     (j)  Securities Act of 1933.  Upon conversion of this Note, the Holder may
          ----------------------
be required to execute and deliver to the Company an instrument, in form
satisfactory to the Company, representing that the shares issuable upon
conversion hereof are being acquired for investment and not with a view to
distribution within the meaning of the Securities Act of 1933, as amended.

3.   No Prepayment of Principal.  Except as otherwise provided in Section 6(g),
     --------------------------
the principal indebtedness represented by this Note may not be prepaid in whole
or in part, without the prior written consent of the Holder.

4.   Default.
     -------

     Subject to the subordination provisions of Section 1, the entire unpaid
principal of this Note and the interest then accrued on this Note shall become
and be immediately due and payable upon written demand of the Holder, without
any other notice or demand of any kind or any presentment or protest, if any one
of the following events shall occur and be continuing at the time of such
demand, whether voluntarily or involuntarily, or, without limitation, occurring
or brought about by operation of law or pursuant to or in compliance with any
judgment, decree or order of any court or any order, rule or regulation of any
governmental body:

     (a)  if default shall be made in the payment of any installment of
principal of Note, or of any installment of interest on this Note, and if any
such default shall remain unremedied for ten (10) days; or

     (b)  if the Company (i) makes a composition or an assignment for the
benefit of creditors or trust mortgage, (ii) applies for, consents to,
acquiesces in, files a petition seeking or admits (by answer, default or
otherwise) the material allegations of a petition filed against it seeking the
appointment of a trustee, receiver or liquidator, in bankruptcy or otherwise, of
itself or of all or a substantial portion of its

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assets, or a reorganization, arrangement with creditors or other remedy, relief
or adjudication available to or against a bankrupt, insolvent or debtor under
any bankruptcy or insolvency law or any law affecting the rights of creditors
generally, or (iii) admits in writing its inability to pay its debts generally
as they become due; or

     (c)  if an order for relief shall have been entered by a bankruptcy court
or if a decree, order or judgment shall have been entered adjudging the Company
insolvent, or appointing a receiver, liquidator, custodian or trustee, in
bankruptcy or otherwise, for it or for all or a substantial portion of its
assets, or approving the winding-up or liquidation of its affairs on the grounds
of insolvency or nonpayment of debts, and such order for relief, decree, order
or judgment shall remain undischarged or unstayed for a period of sixty (60)
days; or if any substantial part of the property of the Company is sequestered
or attached and shall not be returned to the possession of the Company or such
subsidiary or released from such attachment within sixty (60) days.

5.   Note Register.
     -------------

     (a)  The Company shall keep at its principal executive office a register
(herein sometimes referred to as the "Note Register"), in which, subject to such
reasonable regulations as it may prescribe, but at its expense (other than
transfer taxes, if any), the Company shall provide for the registration and
transfer of this Note.

     (b)  Whenever this Note shall be surrendered at the principal executive
office of the Company for transfer or exchange, accompanied by a written
instrument of transfer in form reasonably satisfactory to the Company duly
executed by the Holder or his or its attorney duly authorized in writing, the
Company shall execute and deliver in exchange therefor a new Note or Notes, as
may be requested by such Holder, in the same aggregate unpaid principal amount
and payable on the same date as the principal amount of the Note or Notes so
surrendered; each such new Note shall be dated as of the date to which interest
has been paid on the unpaid principal amount of the Note or Notes so surrendered
and shall be in such principal amount and registered in such name or names as
such Holder may designate in writing.

     (c)  Upon receipt by the Company of evidence reasonably satisfactory to it
of the loss, theft, destruction or mutilation of this Note and of indemnity
reasonably satisfactory to it, and upon reimbursement to the Company of all
reasonable expenses incidental thereto, and upon surrender and cancellation of
this Note (in case of mutilation) the Company will make and deliver in lieu of
this Note a new Note of like tenor and unpaid principal amount and dated as of
the date to which interest has been paid on the unpaid principal amount of this
Note in lieu of which such new Note is made and delivered.

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6.   General.
     -------

     (a)  Successors and Assigns. This Note, and the obligations and rights of
          ----------------------
the Company hereunder, shall be binding upon and inure to the benefit of the
Company, the holder of this Note, and their respective heirs, successors and
assigns.

     (b)  Recourse. Recourse under this Note shall be to the general unsecured
          --------
assets of the Company only and in no event to the officers, directors or
stockholders of the Company.

     (c)  Changes.  Changes in or additions to this Note may be made or
          -------
compliance with any term, covenant, agreement, condition or provision set forth
herein may be omitted or waived (either generally or in a particular instance
and either retroactively or prospectively), upon written consent of the Company
and the holder of the Note then outstanding.

     (d)  Currency.  All payments shall be made in such coin or currency of the
          --------
United States of America as at the time of payment shall be legal tender therein
for the payment of public and private debts.

     (e)  Notices.  All notices, requests, consents and demands shall be made in
          -------
writing and shall be mailed postage prepaid, or delivered by hand, to the
Company or to the holder hereof at their respective addresses set forth below or
to such other address as may be furnished in writing to the other party hereto:

          If to the Holder:

          Renaissance Worldwide, Inc.
          189 Wells Avenue
          Newton, Massachusetts 02159
          Attention: General Counsel

          If to the Company:

          ZEFER Corp.
          105 South Street
          Boston, Massachusetts 02111
          Attention: General Counsel

     (f)  Saturdays, Sundays, Holidays.  If any date that may at any time be
          ----------------------------
specified in this Note as a date for the making of any payment of principal or
interest under this Note shall fall on Saturday, Sunday or on a day which in the
Boston,

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Massachusetts shall be a legal holiday, then the date for the making of that
payment shall be the next subsequent day which is not a Saturday, Sunday or
legal holiday.

     (g) This Note is subject to and entitled to the benefits of the Purchase
Agreement.  The Company may, in accordance with the provisions of Section 8.5 of
the Purchase Agreement, elect to credit against amounts otherwise payable under
this Note any unpaid amounts claimed by the Company against Renaissance under
Article VIII of the Purchase Agreement. The rights of the Company under this
Section 6(g) shall be enforceable against Renaissance and any subsequent holder
of this Note.

     (h) Governing Law.  This Note shall be construed and enforced in accordance
         -------------
with, and the rights of the parties shall be governed by, the laws of the
Commonwealth of Massachusetts.

    IN WITNESS WHEREOF, this Note has been executed and delivered as a sealed
instrument on the date first above written by the duly authorized representative
of the Company.

                        ZEFER CORP.


                        By:  /s/ William Seibel
                             ------------------
                             President

[Corporate Seal]


ATTEST: /s/ Sean Mullaney
        -----------------
         Secretary

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