<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5 EXHIBIT 27.1
<MULTIPLIER> 1,000
<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> 79,548 10,900
<SECURITIES> 64,471 1,011
<RECEIVABLES> 3,131 286
<ALLOWANCES> 225 175
<INVENTORY> 0 0
<CURRENT-ASSETS> 147,695 12,974
<PP&E> 9,886 3,174
<DEPRECIATION> 3,210 1,001
<TOTAL-ASSETS> 156,101 15,237
<CURRENT-LIABILITIES> 9,244 5,900
<BONDS> 0 0
0 29,801
0 0
<COMMON> 22 4
<OTHER-SE> 145,875 (22,124)
<TOTAL-LIABILITY-AND-EQUITY> 156,101 15,237
<SALES> 843 653
<TOTAL-REVENUES> 6,449 1,276
<CGS> 96 98
<TOTAL-COSTS> 1,534 425
<OTHER-EXPENSES> 23,165 11,330
<LOSS-PROVISION> 109 33
<INTEREST-EXPENSE> 89 83
<INCOME-PRETAX> (14,242) (10,215)
<INCOME-TAX> 0 0
<INCOME-CONTINUING> (14,242) (10,215)
<DISCONTINUED> 0 0
<EXTRAORDINARY> 0 0
<CHANGES> 0 0
<NET-INCOME> (14,242) (10,215)
<EPS-BASIC> (0.65) (3.28)
<EPS-DILUTED> (0.65) (3.28)
</TABLE>