Face book is virtual and cybernetic network which causes an effective force and among the youth. It shows that if the usage of the face book network increases at home the rate of the interaction and the bounding social capital decreases as well. It also indicates that the effect of face book usage among the young people has increased already. Through a questionnaire by a survey method, more than 156 students in Ferdowsi University were among the respondents. The results show that using face book network decreases the bounding social capital among the youth in Mashhad. تفاصيل المقالة