<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<S> <C> <C> <C>
<PERIOD-TYPE> 6-MOS YEAR YEAR
<FISCAL-YEAR-END> DEC-31-2000 DEC-31-1999 DEC-31-1998
<PERIOD-START> JAN-01-2000 JAN-01-1999 JAN-01-1998
<PERIOD-END> JUN-30-2000 DEC-31-1999 DEC-31-1998
<CASH> 3,604,492 6,231,569 1,285,736
<SECURITIES> 0 0 3,138,292
<RECEIVABLES> 10,385,564 4,976,375 2,807,548
<ALLOWANCES> 863,771 528,000 480,000
<INVENTORY> 0 0 0
<CURRENT-ASSETS> 13,546,724 10,905,306 6,918,488
<PP&E> 3,242,434 2,172,627 1,630,676
<DEPRECIATION> 1,401,936 1,023,172 633,456
<TOTAL-ASSETS> 16,061,240 12,347,010 8,182,177
<CURRENT-LIABILITIES> 18,797,603 13,078,067 4,056,139
<BONDS> 0 0 0
0 0 0
12,409,576 12,409,576 12,409,576
<COMMON> 308,480 154,149 78,500
<OTHER-SE> (15,631,230) (13,412,188) (8,599,989)
<TOTAL-LIABILITY-AND-EQUITY> 16,061,240 12,347,010 8,182,177
<SALES> 0 0 0
<TOTAL-REVENUES> 21,709,100 23,660,732 8,112,626
<CGS> 0 0 0
<TOTAL-COSTS> 6,950,810 6,044,924 5,243,962
<OTHER-EXPENSES> 16,349,761 19,446,914 11,653,190
<LOSS-PROVISION> 440,819 920,000 412,843
<INTEREST-EXPENSE> 154,471 293,630 137,438
<INCOME-PRETAX> (2,150,643) (3,071,014) (9,188,595)
<INCOME-TAX> 927,227 2,114,467 245,494
<INCOME-CONTINUING> (3,077,870) (5,185,481) (9,434,089)
<DISCONTINUED> 0 0 0
<EXTRAORDINARY> 0 0 0
<CHANGES> 0 0 0
<NET-INCOME> (3,077,870) (5,185,481) (9,434,089)
<EPS-BASIC> (0.29) (0.51) (0.94)
<EPS-DILUTED> (0.29) (0.51) (0.94)
</TABLE>