Impact of Social Media on Revolutions

I felt these articles I read for another class are also pretty relevant here. They're interesting in that they present differing opinions on the ways social media affects the relationships of cultural sects within the population.

http://www.nytimes.com/2011/02/06/world/middleeast/06face.html?pagewanted=all

http://www.jadaliyya.com/pages/index/599/from-the-blogosphere-to-the-street_the-role-of-social-media-in-the-egyptian-uprising

http://www.nytimes.com/2011/02/06/opinion/06rich.html?partner=rssnyt&emc=rss