<TABLE> <S> <C>

<PAGE>

<ARTICLE> 5
<LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
THE CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF OPERATIONS AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000

<S>                             <C>                       <C>
<PERIOD-TYPE>                   YEAR                      YEAR
<FISCAL-YEAR-END>                         MAR-31-1999               MAR-31-2000
<PERIOD-START>                            APR-01-1998               APR-01-1999
<PERIOD-END>                              MAR-31-1999               MAR-31-2000
<CASH>                                         47,698                   182,945
<SECURITIES>                                        0                         0
<RECEIVABLES>                                  10,853                    11,875
<ALLOWANCES>                                      419                     1,279
<INVENTORY>                                         0                         0
<CURRENT-ASSETS>                               60,657                   212,943
<PP&E>                                          6,524                    14,854
<DEPRECIATION>                                  3,105                     6,640
<TOTAL-ASSETS>                                 67,086                   251,937
<CURRENT-LIABILITIES>                          13,785                    30,592
<BONDS>                                             0                         0
<PREFERRED-MANDATORY>                               0                         0
<PREFERRED>                                         0                         0
<COMMON>                                           20                        25
<OTHER-SE>                                     53,281                   220,820
<TOTAL-LIABILITY-AND-EQUITY>                   67,086                   251,937
<SALES>                                             0                         0
<TOTAL-REVENUES>                               82,389                   136,235
<CGS>                                               0                         0
<TOTAL-COSTS>                                       0                         0
<OTHER-EXPENSES>                               68,690                   111,632
<LOSS-PROVISION>                                    0                         0
<INTEREST-EXPENSE>                               (46)                      (97)
<INCOME-PRETAX>                                16,187                    26,605
<INCOME-TAX>                                    6,351                    10,377
<INCOME-CONTINUING>                             9,836                    16,228
<DISCONTINUED>                                      0                         0
<EXTRAORDINARY>                                     0                         0
<CHANGES>                                           0                         0
<NET-INCOME>                                    9,836                    16,228
<EPS-BASIC>                                       .49                       .78
<EPS-DILUTED>                                     .42                       .62


</TABLE>