
<TABLE> <S> <C>

<ARTICLE> 5
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<CASH>                                       2,345,293
<SECURITIES>                                         0
<RECEIVABLES>                                3,397,001
<ALLOWANCES>                                   332,000
<INVENTORY>                                          0
<CURRENT-ASSETS>                             5,729,533
<PP&E>                                      17,691,483
<DEPRECIATION>                               8,839,381
<TOTAL-ASSETS>                              16,678,780
<CURRENT-LIABILITIES>                        4,586,495
<BONDS>                                              0
<PREFERRED-MANDATORY>                        2,373,758
<PREFERRED>                                          0
<COMMON>                                        24,002
<OTHER-SE>                                   9,694,525
<TOTAL-LIABILITY-AND-EQUITY>                16,678,780
<SALES>                                              0
<TOTAL-REVENUES>                             9,856,703
<CGS>                                        2,859,605
<TOTAL-COSTS>                                9,414,796
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                             (2,734,435)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                         (2,734,435)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                (2,734,435)
<EPS-PRIMARY>                                    (0.12)
<EPS-DILUTED>                                        0
        

</TABLE>
