<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE 
CONDENSED CONSOLIDATED UNAUDITED FINANCIAL STATEMENTS AND RELATED NOTES 
CONTAINED IN THIS FILING AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH 
FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               JUN-30-1998
<CASH>                                          28,124
<SECURITIES>                                         0
<RECEIVABLES>                                    9,298
<ALLOWANCES>                                     1,289
<INVENTORY>                                        346
<CURRENT-ASSETS>                                37,830
<PP&E>                                           6,967
<DEPRECIATION>                                   4,745
<TOTAL-ASSETS>                                  50,318
<CURRENT-LIABILITIES>                            9,062
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           134
<OTHER-SE>                                      40,960
<TOTAL-LIABILITY-AND-EQUITY>                    50,318
<SALES>                                          6,844
<TOTAL-REVENUES>                                15,909
<CGS>                                            1,003
<TOTAL-COSTS>                                    6,780
<OTHER-EXPENSES>                                18,121
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  65
<INCOME-PRETAX>                                (1,074)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                            (1,074)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (1,074)
<EPS-PRIMARY>                                    (.33)
<EPS-DILUTED>                                    (.33)