This is a terrific article courtesy of ReadWriteWeb:
Evolution of a Revolution: Visualizing Millions of Iran Tweets
During the height of the political protests in Iran it was possible to follow an amazing stream of tweets, and witness history. Twitter was the main conduit for getting news and images out of the country, and for protest coordination within. Iranians outside the borders worked feverishly to unblock government filters to protect Twitter access.
Tracking the "computational history" of the event gives real insight into the evolution of social clusters, and the organic nature of these platforms. Analysis like this provide compelling evidence that digital tools like Twitter are vital for students to use and understand if they are to have a true global understanding. We need to change how we teach to include these new literacies.