<ARTICLE> 5 <LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE CONDENSED CONSOLIDATED FINANCIAL STATEMENTS OF JUNO ONLINE SERVICE, INC. AND SUBSIDIARY FOUND IN THE COMPANY'S FORM 10-Q AS OF AND FOR THE SIX MONTHS ENDED JUNE 30, 2000 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS. </LEGEND> <MULTIPLIER> 1,000 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-2000 <PERIOD-START> JAN-01-2000 <PERIOD-END> JUN-30-2000 <CASH> 85,473 <SECURITIES> 0 <RECEIVABLES> 15,394 <ALLOWANCES> 1,047 <INVENTORY> 0 <CURRENT-ASSETS> 109,529 <PP&E> 16,399 <DEPRECIATION> 6,664 <TOTAL-ASSETS> 119,768 <CURRENT-LIABILITIES> 54,864 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 388 <OTHER-SE> 205,998 <TOTAL-LIABILITY-AND-EQUITY> 119,768 <SALES> 53,600 <TOTAL-REVENUES> 53,600 <CGS> 29,879 <TOTAL-COSTS> 29,879 <OTHER-EXPENSES> 117,570 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 91 <INCOME-PRETAX> (90,477) <INCOME-TAX> 0 <INCOME-CONTINUING> (90,477) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (90,477) <EPS-BASIC> (2.39) <EPS-DILUTED> (2.39)