1. Imagined Communities: Awareness, Information Sharing, and Privacy on the Facebook
2. Barnard, A . (2007a, September 25). New York investigating Facebook’s safety rules. New York Times. Retrieved February 17, 2008, from http://www.nytimes.com/2007/09/25/nyregion/25facebook.html
3. Facebook agrees to more safeguards;Barnard;New York Times,200717
4. Recent developments in role theory;Biddle;Annual Review of Sociology,1986