<ARTICLE>                     5
<LEGEND>                      Financial Data Schedule
     (Replace this text with the legend)
</LEGEND>

<CURRENCY>                                     US DOLLARS
       
                                            
<PERIOD-TYPE>                                  3-MOS
<FISCAL-YEAR-END>                              DEC-31-1998
<PERIOD-START>                                 JAN-01-1999
<PERIOD-END>                                   MAR-31-1999
<EXCHANGE-RATE>                                1.000
<CASH>                                         3,343,080
<SECURITIES>                                   0
<RECEIVABLES>                                  5,166,440
<ALLOWANCES>                                   1,123,009
<INVENTORY>                                    220,139
<CURRENT-ASSETS>                               8,112,004
<PP&E>                                         30,054,718
<DEPRECIATION>                                 17,321,276
<TOTAL-ASSETS>                                 21,123,977
<CURRENT-LIABILITIES>                          4,304,344
<BONDS>                                        0
<PREFERRED-MANDATORY>                          0
<PREFERRED>                                    0
<COMMON>                                       732
<OTHER-SE>                                     19,815,321
<TOTAL-LIABILITY-AND-EQUITY>                   21,123,977
<SALES>                                        7,941,609
<TOTAL-REVENUES>                               7,965,085
<CGS>                                          4,722,646
<TOTAL-COSTS>                                  5,416,679
<OTHER-EXPENSES>                               1,057,877
<LOSS-PROVISION>                               78,737
<INTEREST-EXPENSE>                             300,284
<INCOME-PRETAX>                                1,190,235
<INCOME-TAX>                                   34,900
<INCOME-CONTINUING>                            1,155,335
<DISCONTINUED>                                 0
<EXTRAORDINARY>                                0
<CHANGES>                                      0
<NET-INCOME>                                   1,155,335
<EPS-PRIMARY>                                  .16
<EPS-DILUTED>                                  .15