PROMISSORY NOTE


$987,500.00                                                  Uniondale, New York
                                                                  March 31, 2001


     FOR VALUE RECEIVED,  the  undersigned,  Serif Inc., a Delaware  corporation
("Maker"), with its principal office at 107-109 North Eastern Boulevard, Nashua,
New Hampshire 03062,  does hereby promise to pay to the order of Vizacom Inc., a
Delaware  corporation  ("Payee"),  with an  address  at 3512  Veterans  Memorial
Highway,  Bohemia,  New York  11716,  or at such other place as the Payee or any
holder hereof may from time to time designate, the principal sum of Nine Hundred
Fifty Thousand Dollars  ($987,500.00),  in lawful money of the United States and
immediately  available  funds,  together with accrued and unpaid interest as set
forth herein, as follows:

     1. The  amounts  due under  this  Promissory  Note (this  "Note")  shall be
payable in the amount of  $40,000  on the last day of each  month  beginning  on
April 30, 2001,  until all principal and accrued interest has been paid in full;
provided,  however,  that (i) payments due in any April under this Note shall be
in the amount of $30,000 and (ii)  payments due in any November  under this Note
shall be in the amount of $50,000.

     2. The  principal  of this Note shall bear  interest at a rate equal to ten
percent (10%) percent per annum from the date hereof, computed on the basis of a
360-day year consisting of twelve 30-day months.

     3. Prepayment.  Maker may prepay, at any time, the unpaid principal balance
of this Note or any  portion  thereof,  together  with all  accrued  and  unpaid
interest on the amount so prepaid.  Amounts so prepaid shall be applied first to
Maker's  obligations  under this Note in respect of  interest,  and  second,  to
principal.

     4. Events of Default.  Upon the  occurrence of any of the following  events
(each, an "Event of Default" and collectively, the "Events of Default"):

       (a) failure by Maker to pay the principal  or interest of the Note or any
installment  thereof  when due,  whether  on the date  fixed for  payment  or by
acceleration  or otherwise;  provided,  however,  that failure to make a monthly
payment when due under this Note following the fourth monthly  payment shall not
be an Event of Default if such overdue payment is paid within fourteen (14) days
of such due date; provided further,  however, that from this date until any such
overdue  payment is made,  the  principal of this Note shall bear  interest at a
rate equal to fourteen percent (14%); or

       (b) A final judgment for  the payment of money in excess of $25,000 shall
be rendered  against  Maker, and  such  judgment shall remain undischarged for a
period of sixty days from the date of entry thereof unless within such sixty day
period such  judgment  shall  be  stayed,  and  appeal  taken  therefrom and the
execution thereon stayed during such appeal; or

<PAGE>


       (c) If Maker shall default in respect  of any  indebtedness  or under any
agreement  under which any notes or other evidence of  indebtedness of Maker are
issued, in an amount equal to or greater than $25,000; or

       (d) if  Maker  or  any  other  authorized person or entity shall take any
action to effect a dissolution, liquidation or winding up of Maker; or

       (e) if Maker shall make a general assignment for the benefit of creditors
or consent to the appointment of a receiver,  liquidator,  custodian, or similar
official of all or substantially all of its properties,  or any such official is
placed in control of such  properties,  or Maker admits in writing its inability
to pay its  debts  as they  mature,  or  Maker  shall  commence  any  action  or
proceeding  or take  advantage of or file under any federal or state  insolvency
statute, including, without limitation, the United States Bankruptcy Code or any
political subdivision thereof,  seeking to have an order for relief entered with
respect to it or seeking  adjudication  as a bankrupt or  insolvent,  or seeking
reorganization,     arrangement,    adjustment,    liquidation,     dissolution,
administration,  a voluntary arrangement,  or other relief with respect to it or
its debts; or

       (f) there shall  be  commenced  against Maker any action or proceeding of
the  nature   referred   to  in  paragraph  (c) above  or seeking  issuance of a
warrant of attachment,  execution,  distraint, or similar process against all or
any substantial part of the property of Maker,  which results in the entry of an
order for relief  which  remains  undismissed,  undischarged  or unbonded  for a
period of sixty days;

then, in  addition  to  all  rights  and remedies of Payee under  applicable law
or otherwise,  all such rights and remedies being cumulative,  not exclusive and
enforceable  alternatively,  successively  and  concurrently,  at the  option of
Payee,  all amounts  owing under this Note,  including  the then unpaid  balance
hereof together with all interest accrued thereon  immediately  shall be due and
payable,  and thereupon all interest  accruing  hereunder shall accrue at a rate
equal to fourteen percent (14%) per annum until all obligations  under this Note
are paid in full,  including all costs and expenses of collection or enforcement
hereof, including, but not limited to, attorneys' fees and expenses.

     5.   Miscellaneous.

     (a) Maker (i) waives diligence, demand, presentment,  protest and notice of
any kind,  (ii) agrees that it will not be  necessary  for any holder  hereof to
first institute suit in order to enforce payment of this Note and (iii) consents
to any one or more  extensions  or  postponements  of time of payment,  release,
surrender  or  substitution  of  collateral  security  or  forbearance  or other
indulgence,   without  notice  or  consent.  The  pleading  of  any  statute  of
limitations as a defense to any demand against Maker is expressly hereby waived.

     (b) Payee shall not be required to resort to any  collateral  for  payment,
but may proceed  against Maker and any  guarantors  or endorsers  hereof in such
order and  manner  as Payee may  choose.  None of the  rights of Payee  shall be
waived or diminished by any failure or delay in the exercise thereof.

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<PAGE>

     (c) All payments  shall be made into the  following  account,  or any other
account or accounts as the Payee may from time to time specify for that purpose:

                                  Vizacom Inc.
                         3512 Veterans Memorial Highway
                             Bohemia, New York 11716

                              Valley National Bank
                               Account # 040472914
                                 ABA # 021201383


All  payments  to  be  made  to the Payee under this Note shall be made free and
clear of and  without  deduction  for or on  account  of any  tax,  withholding,
charges, set-off or counterclaim.

     (d) All notices,  demands,  requests and other  communications  required or
otherwise  given under this Note shall be in writing and shall be deemed to have
been duly given if: (i) delivered by hand against written receipt therefor, (ii)
forwarded by a third party company or  governmental  entity  providing  delivery
services  in the  ordinary  course of business  which  guarantees  delivery  the
following  business day,  (iii) mailed by registered or certified  mail,  return
receipt   requested,   postage   prepaid,   or  (iv)  transmitted  by  facsimile
transmission  electronically  confirmed for receipt, in full, by the other party
no later than 5:00 pm,  local time,  on the date of  transmission,  addressed as
follows:

          If to Maker to:         Serif Inc.
                                  c/o Serif (Europe) Limited
                                  Unit 12
                                  Wilford Industrial Estate
                                  Nottingham, NG11 7EP
                                  Attention: Financial Director
                                  Facsimile: 0 115 914 2020

          If to Payee to:         Vizacom Inc.
                                  3512 Veterans Memorial Highway
                                  Bohemia, New York 11716
                                  Attention: President
                                  Facsimile: (631) 580-5489

         with a copy to:          Kaufman & Moomjian, LLC
                                  50 Charles Lindbergh Boulevard - Suite 206
                                  Mitchel Field, New York 11553
                                  Attention: Neil M. Kaufman, Esq.
                                  Facsimile: (516) 222-5110

or  at  such  other  address  as such party shall have  furnished to each of the
other  parties  hereto in accordance  with this Section 5(d).  Each such notice,
demand,  request or other communication shall

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<PAGE>


be  deemed  given  (i)  on  the date of such delivery by hand, (ii) on the first
business  day  following  the date of such  delivery to the  overnight  delivery
service or facsimile  transmission,  or (iii) three business days following such
mailing.

     (e) The provisions of this Note may not be changed,  modified or terminated
orally,  but only by an agreement in writing  signed by the party to be charged,
nor shall any waiver be applicable  except in the specific instance for which it
is given.

     (f) This Note  shall be  governed  by and  construed,  and all  rights  and
obligations  hereunder  determined,  in accordance with the laws of the State of
New York without regard to the conflicts of laws principles thereof and shall be
binding upon the successors and assigns of Maker and inure to the benefit of the
Payee, its successors, endorsees and assigns.

     (g) If any term or provision of this Note shall be held invalid, illegal or
unenforceable, the validity of all other terms and provisions shall in no way be
affected thereby.

     (h) Whenever used herein,  the terms "Maker" and "Payee" shall be deemed to
include their respective successors and permitted assigns.


     IN WITNESS  WHEREOF,  this Note has been executed and delivered on the date
first written above by the duly authorized representative of the Maker.


                                  SERIF INC.


                                  By:          /s/ Pete Beedham
                                       ------------------------------------
                                       Name:   Pete Beedham
                                       Title:  Vice President


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