<ARTICLE> 5

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               JUN-30-1999
<CASH>                                     244,665,000
<SECURITIES>                                         0
<RECEIVABLES>                                1,964,000
<ALLOWANCES>                                 (149,000)
<INVENTORY>                                          0
<CURRENT-ASSETS>                           253,466,000
<PP&E>                                      18,686,000
<DEPRECIATION>                             (3,057,000)
<TOTAL-ASSETS>                             306,752,000
<CURRENT-LIABILITIES>                        7,133,000
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                   434,348,000
<OTHER-SE>                               (139,626,000)
<TOTAL-LIABILITY-AND-EQUITY>               306,752,000
<SALES>                                              0
<TOTAL-REVENUES>                             3,055,000
<CGS>                                                0
<TOTAL-COSTS>                                6,337,000
<OTHER-EXPENSES>                            32,622,000
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                             244,000
<INCOME-PRETAX>                           (33,915,000)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                       (33,915,000)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                              (33,915,000)
<EPS-BASIC>                                     (1.70)
<EPS-DILUTED>                                   (1.70)