<ARTICLE> 5
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<CASH>                                          61,491
<SECURITIES>                                    93,387
<RECEIVABLES>                                  126,033
<ALLOWANCES>                                     8,406
<INVENTORY>                                          0
<CURRENT-ASSETS>                               295,145
<PP&E>                                          50,080
<DEPRECIATION>                                  20,964
<TOTAL-ASSETS>                                 339,224
<CURRENT-LIABILITIES>                          103,801
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            18
<OTHER-SE>                                     234,957
<TOTAL-LIABILITY-AND-EQUITY>                   339,224
<SALES>                                        230,961
<TOTAL-REVENUES>                               361,916
<CGS>                                            7,959
<TOTAL-COSTS>                                  331,571
<OTHER-EXPENSES>                               (6,917)
<LOSS-PROVISION>                                 4,640
<INTEREST-EXPENSE>                                 179
<INCOME-PRETAX>                                 37,262
<INCOME-TAX>                                    17,279
<INCOME-CONTINUING>                             19,983
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    19,983
<EPS-PRIMARY>                                     0.29
<EPS-DILUTED>                                     0.26