<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM ALLAIRE
CORPORATION FINANCIAL STATEMENTS AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE
TO SUCH FINANCIAL STATEMENTS.

<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-START>                             JAN-01-2000
<PERIOD-END>                               SEP-30-2000
<EXCHANGE-RATE>                                      1
<CASH>                                          45,091
<SECURITIES>                                    80,357
<RECEIVABLES>                                   17,450
<ALLOWANCES>                                   (1,055)
<INVENTORY>                                        451
<CURRENT-ASSETS>                               144,312
<PP&E>                                          24,341
<DEPRECIATION>                                 (6,741)
<TOTAL-ASSETS>                                 168,661
<CURRENT-LIABILITIES>                           61,996
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           274
<OTHER-SE>                                     106,346
<TOTAL-LIABILITY-AND-EQUITY>                   168,661
<SALES>                                         73,844
<TOTAL-REVENUES>                                89,242
<CGS>                                            3,719
<TOTAL-COSTS>                                   19,117
<OTHER-EXPENSES>                                77,170
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 278
<INCOME-PRETAX>                                (1,812)
<INCOME-TAX>                                        89
<INCOME-CONTINUING>                            (1,901)
<DISCONTINUED>                                 (1,901)
<EXTRAORDINARY>                                (1,901)
<CHANGES>                                      (1,901)
<NET-INCOME>                                   (1,901)
<EPS-BASIC>                                     (0.07)
<EPS-DILUTED>                                   (0.07)