<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONDENSED BALANCE SHEET AND CONDENSED STATEMENT OF OPERATIONS AND IS QUALIFIED
IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 13,187,182
<SECURITIES> 26,090,743
<RECEIVABLES> 3,800,700
<ALLOWANCES> (144,363)
<INVENTORY> 0
<CURRENT-ASSETS> 1,345,856
<PP&E> 9,235,338
<DEPRECIATION> (2,988,373)
<TOTAL-ASSETS> 51,852,228
<CURRENT-LIABILITIES> 11,655,518
<BONDS> 0
0
0
<COMMON> 83,139,721
<OTHER-SE> (43,908,060)
<TOTAL-LIABILITY-AND-EQUITY> 51,852,228
<SALES> 4,896,227
<TOTAL-REVENUES> 4,896,227
<CGS> 0
<TOTAL-COSTS> 5,059,606
<OTHER-EXPENSES> 13,573,515
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 117,525
<INCOME-PRETAX> (12,472,723)
<INCOME-TAX> 0
<INCOME-CONTINUING> (12,472,723)
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (12,472,723)
<EPS-BASIC> (0.81)
<EPS-DILUTED> (0.81)
</TABLE>