References
(1) Daniel Nations. n.d. "What is Social Media? What are Social Media Sites?" <http://webtrends.about.com/od/web20/a/social-media.htm>
(2) Antony Mayfield. (2008) "What is Social Media?" e-Book from iCrossing. Retrieved on January 8, 2008 <http://www.icrossing.co.uk/fileadmin/uploads/eBooks/What_is_Social_Media_iCrossing_ebook.pdf>
(3) "Social Media." (2011) Wikipedia: The Free Online Encyclopedia. Retrieved on Jul7, 2011 <http://en.wikipedia.org/wiki/Social_media>
(4) "Social Media Revolution 2011." (2011) YouTube. Retrieved on June 8, 2011 <http://www.youtube.com/watch?v=3SuNx0UrnEo>
(5) "History of Social Media." (2011) YouTube. Retrieved on May 9, 2011 <http://www.youtube.com/watch?v=DTrrf54N8Qg&feature=related>
(6) "What is Social Media? In Simple English." (2010) YouTube. Retrieved on July 31, 2010 <http://www.youtube.com/watch?v=jQ8J3IHhn8A&feature=related>