<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM (A) THE
COMPANY'S QUARTER ENDED JUNE 30, 1997 FINANCIAL STATEMENTS AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH (B) FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<CASH>                                          44,740
<SECURITIES>                                         0
<RECEIVABLES>                                   13,828
<ALLOWANCES>                                       364
<INVENTORY>                                          0
<CURRENT-ASSETS>                                59,808
<PP&E>                                           5,865
<DEPRECIATION>                                   2,391
<TOTAL-ASSETS>                                  64,069
<CURRENT-LIABILITIES>                           18,780
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        33,114
<OTHER-SE>                                      11,678
<TOTAL-LIABILITY-AND-EQUITY>                    64,069
<SALES>                                         29,053
<TOTAL-REVENUES>                                29,053
<CGS>                                            4,904
<TOTAL-COSTS>                                    4,904
<OTHER-EXPENSES>                                19,871
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  56
<INCOME-PRETAX>                                  4,983
<INCOME-TAX>                                     1,794
<INCOME-CONTINUING>                              3,189
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     3,189
<EPS-PRIMARY>                                     0.15
<EPS-DILUTED>                                     0.15