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<PAGE>
<ARTICLE> 5
<S> <C> <C>
<PERIOD-TYPE> 6-MOS 6-MOS
<FISCAL-YEAR-END> DEC-31-2000 DEC-31-1999
<PERIOD-START> JAN-01-2000 JAN-01-1999
<PERIOD-END> JUN-30-2000 JUN-30-1999
<CASH> 64,885,960 3,604,551
<SECURITIES> 24,422,520 2,630,850
<RECEIVABLES> 5,674,201 3,222,432
<ALLOWANCES> 212,530 162,183
<INVENTORY> 0 0
<CURRENT-ASSETS> 95,627,513 9,773,526
<PP&E> 2,590,213 2,163,641
<DEPRECIATION> 1,248,689 961,063
<TOTAL-ASSETS> 97,802,449 12,195,378
<CURRENT-LIABILITIES> 6,640,592 5,464,012
<BONDS> 0 0
0 0
0 0
<COMMON> 246,405 146,640
<OTHER-SE> 90,915,452 (9,734,844)
<TOTAL-LIABILITY-AND-EQUITY> 97,802,449 12,195,378
<SALES> 0 0
<TOTAL-REVENUES> 8,584,434 2,977,663
<CGS> 1,966,129 405,393
<TOTAL-COSTS> 19,372,483 4,082,250
<OTHER-EXPENSES> 0 0
<LOSS-PROVISION> 0 0
<INTEREST-EXPENSE> (1,682,518) 213,668
<INCOME-PRETAX> (9,105,531) (1,318,255)
<INCOME-TAX> 0 0
<INCOME-CONTINUING> (9,105,531) (1,318,255)
<DISCONTINUED> 0 0
<EXTRAORDINARY> 0 0
<CHANGES> 0 0
<NET-INCOME> (9,105,531) (1,318,255)
<EPS-BASIC> ($0.45) ($0.21)
<EPS-DILUTED> ($0.45) ($0.21)
</TABLE>