This study was limited in several aspects. First, the timeframe to collect data was too short. Three to four weeks for the study was not sufficient. Second, a total of 50 questionnaires were administered, however usable questionnaires were 48, so the result may not reflect the real situation for the whole population. With this sample size, the estimated sample error is 14.4%, so an increase in sample size might yield different results. And, of course these results might be affected by this very large sample error. Third, this research did not consider student’s psychological state; perhaps influences and motivations for social networking use.