<TABLE> <S> <C>



<ARTICLE>                     5
       
<S>                             <C>               <C>            <C>            <C>            <C>
<PERIOD-TYPE>                          YEAR              YEAR          3-MOS          6-MOS          9-MOS
<FISCAL-YEAR-END>               DEC-31-1995       DEC-31-1996    DEC-31-1996    DEC-31-1996    DEC-31-1996
<PERIOD-START>                  JAN-01-1995       JAN-01-1996    JAN-01-1996    JAN-01-1996    JAN-01-1996
<PERIOD-END>                    DEC-31-1995       DEC-31-1996    MAR-31-1996    JUN-30-1996    SEP-30-1996
<CASH>                              962,724         1,797,892      1,179,190      1,490,297      1,426,193
<SECURITIES>                              0                 0              0              0              0
<RECEIVABLES>                     1,365,378         1,299,403      1,247,041      1,032,304      1,390,719
<ALLOWANCES>                         10,000            10,000         10,000         10,000         10,000
<INVENTORY>                               0                 0              0              0              0
<CURRENT-ASSETS>                  2,374,806         3,148,747      2,476,879      2,597,810      2,879,040
<PP&E>                            2,938,105         3,196,433      2,976,959      3,026,838      3,130,532
<DEPRECIATION>                    2,694,888         2,877,020      2,737,620      2,774,055      2,838,645
<TOTAL-ASSETS>                    2,798,997         3,594,161      2,918,356      3,049,458      3,361,352
<CURRENT-LIABILITIES>             1,297,770         1,327,154      1,217,929      1,132,031      1,253,908
<BONDS>                                   0                 0              0              0              0
<COMMON>                            259,232           260,963        260,397        260,591        260,698
<PREFERRED-MANDATORY>                     0                 0              0              0              0
<PREFERRED>                               0                 0              0              0              0
<OTHER-SE>                        1,116,681         1,933,307      1,348,988      1,565,794      1,755,804
<TOTAL-LIABILITY-AND-EQUITY>      2,798,997         3,594,161      2,918,356      3,049,458      3,361,352
<SALES>                                   0                 0              0              0              0
<TOTAL-REVENUES>                  5,566,053         7,158,763      1,670,779      3,332,833      5,180,045
<CGS>                                     0                 0              0              0              0
<TOTAL-COSTS>                     3,409,703         4,541,823        972,986      1,987,721      3,184,276
<OTHER-EXPENSES>                  1,930,239         2,150,659        581,262      1,117,640      1,625,811
<LOSS-PROVISION>                          0                 0              0              0              0
<INTEREST-EXPENSE>                      468                 0              0              0              0
<INCOME-PRETAX>                     466,595           697,024        174,571        329,915        521,101
<INCOME-TAX>                         15,925            24,650          2,625          5,250          7,875
<INCOME-CONTINUING>                 450,670           672,374        171,946        324,665        513,226
<DISCONTINUED>                            0                 0              0              0              0
<EXTRAORDINARY>                           0                 0              0              0              0
<CHANGES>                                 0                 0              0              0              0
<NET-INCOME>                        450,670           672,374        171,946        324,665        513,226
<EPS-PRIMARY>                          0.02              0.03           0.01           0.01           0.02
<EPS-DILUTED>                          0.02              0.02           0.01           0.01           0.02
        


</TABLE>