1. Boyd D . Social Media is Here to Stay. Now What? Microsoft Research Tech Fest. Redmond, Washington, 2009. http://www.danah.org/papers/talks/MSRTechFest2009.html (accessed 22 Jun 2012).
2. O'Reilly . What is web 2.0? http://oreilly.com/web2/archive/what-is-web-20.html (accessed 8 Aug 2011).
3. Social Network Sites: Definition, History, and Scholarship
4. Hampton KN Goulet LS Rainie L . Social Networking Sites and Our Lives. Pew Internet & American Life Project, 2011. http://www.pewinternet.org/Reports/2011/Technology-and-social-networks/Summary.aspx (accessed 1 Sep 2011).
5. Shirky C . The Political Power of Social Media. http://www.foreignaffairs.com/articles/67038/clay-shirky/the-political-power-of-social-media (accessed 6 Sep 2011).