<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
COMPANY'S QUARTERLY REPORT ON FORM 10Q FOR THE SIX MONTHS ENDED JUNE 30, 2000.
</LEGEND>
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-START>                             JAN-01-2000
<PERIOD-END>                               JUN-30-2000
<CASH>                                         183,208
<SECURITIES>                                   195,177
<RECEIVABLES>                                    5,434
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                               385,519
<PP&E>                                          63,264
<DEPRECIATION>                                  38,184
<TOTAL-ASSETS>                                 428,322
<CURRENT-LIABILITIES>                           24,591
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           533
<OTHER-SE>                                     224,579
<TOTAL-LIABILITY-AND-EQUITY>                   428,322
<SALES>                                          5,922
<TOTAL-REVENUES>                                44,557
<CGS>                                                0
<TOTAL-COSTS>                                   53,666
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               3,167
<INCOME-PRETAX>                                (3,546)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                            (3,546)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (3,546)
<EPS-BASIC>                                     (0.07)
<EPS-DILUTED>                                   (0.07)