References Of Social Networking

http://en.wikipedia.org/wiki/Facebook
http://smwtwvncc2011s.wordpress.com/2011/03/10/advantages-and-disadvantages-of-facebook/
http://uk.answers.yahoo.com/question/index?qid=20080315031924AAam9U8
http://en.wikipedia.org/wiki/Twitter
http://unblocked.me/twitter_faq/advantages-and-disadvantages-of-twitter.php
http://en.wikipedia.org/wiki/Bebo
http://ezinearticles.com/?FaceBook-Or-Bebo?&id=1600181
http://santiagomerea.amplify.com/2010/04/27/how-social-networking-sites-work/

Videos
http://www.youtube.com/watch?v=NnAWq1sjKwk
http://www.youtube.com/watch?v=6a_KF7TYKVc