This Youtube video called ” The Egyptian Revolution on Twitter” is fascinating.
Check out the screen shots on the left that show the power of one person on twitter as millions and millions of people connect through them.
Apparently the data is done with a force-directed algorithm, which works by attracting two nodes with a link, and repulsing the others.
The data was collected with Gephi Graph Streaming. This is a preliminary result of the network of retweets with the hashtag #jan25 at February 11 2011, at the time of the announcement of Mubarak’s resignation.