<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
0 0
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>