<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>

This  schedule  contains  summary  financial   information  extracted  from  the
consolidated  (unaudited)  statements  of  income  for the  three  months  ended
September 30, 1998 and the  consolidated  balance sheet as of September 30, 1998
contained in the Company's Quarterly Report on Form 10 Q/A for the Quarter Ended
Septmber  30,  1998  and is  qualified  in its  entirety  by  reference  to such
financial statements.
</LEGEND>

       
<S>                                     <C>            <C>          <C>
<PERIOD-TYPE>                                 9-MOS          9-MOS        9-MOS
<FISCAL-YEAR-END>                       DEC-31-1998    DEC-31-1997  DEC-31-1996
<PERIOD-END>                            SEP-30-1998    SEP-30-1997  SEP-30-1996
<CASH>                                    3,530,437      1,149,670    3,175,674
<SECURITIES>                                    160     10,292,437   12,538,755
<RECEIVABLES>                            33,479,119     18,474,729    6,916,031
<ALLOWANCES>                             (2,395,487)      (835,000)    (380,000)
<INVENTORY>                                 385,552        308,453      261,338
<CURRENT-ASSETS>                         42,934,007     35,445,235   23,325,580
<PP&E>                                   21,448,613     13,425,029    9,121,231
<DEPRECIATION>                           (7,925,339)    (3,252,188)  (1,471,461)
<TOTAL-ASSETS>                           86,896,255     61,058,103   57,765,583
<CURRENT-LIABILITIES>                    24,697,997     16,763,606    5,388,453
<BONDS>                                     304,640        849,171        6,667
<PREFERRED-MANDATORY>                             0              0            0
<PREFERRED>                                       0              0            0
<COMMON>                                    191,434         92,707       85,173
<OTHER-SE>                               60,810,184     42,702,619   51,807,290
<TOTAL-LIABILITY-AND-EQUITY>             86,896,255     61,058,103   57,765,583
<SALES>                                  26,098,409     21,194,296    9,983,265
<TOTAL-REVENUES>                         68,732,574     48,896,128   22,869,765
<CGS>                                     2,592,323      2,284,532    1,327,546
<TOTAL-COSTS>                            21,827,723     16,176,549    6,445,173
<OTHER-EXPENSES>                         34,565,840     22,152,540   10,006,723
<LOSS-PROVISION>                            226,594              0            0
<INTEREST-EXPENSE>                           88,400        186,954        3,678
<INCOME-PRETAX>                          12,844,544     11,305,797    8,164,848
<INCOME-TAX>                              7,047,658      3,705,797    3,145,000
<INCOME-CONTINUING>                       5,796,886      7,554,985    5,019,848
<DISCONTINUED>                                    0              0            0
<EXTRAORDINARY>                                   0              0            0
<CHANGES>                                         0              0            0
<NET-INCOME>                              5,796,886      7,554,985    5,019,848
<EPS-PRIMARY>                                  0.31           0.41         0.30
<EPS-DILUTED>                                  0.28           0.40         0.28
        


</TABLE>