<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONDENSED CONSOLIDATED BALANCE SHEET AT MARCH 31, AND THE CONDENSED CONSOLIDATED
STATEMENT OF OPERATIONS FOR THE THREE MONTHS ENDED MARCH 31, 2000, AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO THESE FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-2000
<PERIOD-END>                               MAR-31-2000
<CASH>                                         108,383
<SECURITIES>                                    15,257
<RECEIVABLES>                                   34,954
<ALLOWANCES>                                     1,082
<INVENTORY>                                          0
<CURRENT-ASSETS>                               167,606
<PP&E>                                          26,878
<DEPRECIATION>                                  12,181
<TOTAL-ASSETS>                               1,888,544
<CURRENT-LIABILITIES>                           64,109
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           115
<OTHER-SE>                                   1,824,339
<TOTAL-LIABILITY-AND-EQUITY>                 1,888,544
<SALES>                                         34,071
<TOTAL-REVENUES>                                34,071
<CGS>                                                0
<TOTAL-COSTS>                                   12,462
<OTHER-EXPENSES>                                82,758
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                               (26,302)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                           (26,155)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                  (26,155)
<EPS-BASIC>                                     (0.24)
<EPS-DILUTED>                                   (0.24)