<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> YEAR YEAR YEAR <FISCAL-YEAR-END> DEC-31-1998 DEC-31-1997 DEC-31-1996 <PERIOD-START> JAN-01-1998 JAN-01-1997 JAN-01-1996 <PERIOD-END> DEC-31-1998 DEC-01-1997 DEC-31-1996 <CASH> 51,900 63,395 13,617 <SECURITIES> 37,901 30,282 4,857 <RECEIVABLES> 6,493 13,365 5,344 <ALLOWANCES> 1,344 986 540 <INVENTORY> 0 0 0 <CURRENT-ASSETS> 98,396 111,542 26,827 <PP&E> 12,886 8,806 3,462 <DEPRECIATION> 6,506 2,753 783 <TOTAL-ASSETS> 128,774 119,469 31,346 <CURRENT-LIABILITIES> 40,650 24,326 8,061 <BONDS> 987 963 0 <PREFERRED-MANDATORY> 0 0 0 <PREFERRED> 4,842 4,842 23,153 <COMMON> 62 55 1 <OTHER-SE> 76,400 73,783 133 <TOTAL-LIABILITY-AND-EQUITY> 128,774 119,469 31,346 <SALES> 0 0 0 <TOTAL-REVENUES> 66,377 36,391 21,583 <CGS> 0 0 0 <TOTAL-COSTS> 12,666 7,112 3,749 <OTHER-EXPENSES> 77,799 46,240 22,221 <LOSS-PROVISION> 0 0 0 <INTEREST-EXPENSE> 0 0 0 <INCOME-PRETAX> (19,953) (15,069) (4,065) <INCOME-TAX> 0 0 0 <INCOME-CONTINUING> (19,953) (15,069) (4,065) <DISCONTINUED> 0 0 0 <EXTRAORDINARY> 0 0 0 <CHANGES> 0 0 0 <NET-INCOME> (19,953) (15,069) (4,065) <EPS-BASIC> (.31) (1.84) (4.23) <EPS-DILUTED> (.31) (1.84) (4.23)