<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
FINANCIAL STATEMENTS INCLUDED IN ADFORCE INC.'S FORM S-1 REGISTRATION STATEMENT
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<CASH>                                          10,045
<SECURITIES>                                         0
<RECEIVABLES>                                    2,195
<ALLOWANCES>                                     1,035
<INVENTORY>                                          0
<CURRENT-ASSETS>                                11,780
<PP&E>                                           6,972
<DEPRECIATION>                                   2,764
<TOTAL-ASSETS>                                  19,875
<CURRENT-LIABILITIES>                            3,805
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          5
<COMMON>                                             5
<OTHER-SE>                                      12,971
<TOTAL-LIABILITY-AND-EQUITY>                    19,875
<SALES>                                              0
<TOTAL-REVENUES>                                 4,286
<CGS>                                                0
<TOTAL-COSTS>                                    5,059
<OTHER-EXPENSES>                                14,096
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 151
<INCOME-PRETAX>                               (15,020)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                           (15,020)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                  (15,020)
<EPS-PRIMARY>                                   (5.28)
<EPS-DILUTED>                                   (5.28)