A visualization of the network of retweets with the hashtag #jan25 at February 11 2011, at the time of the announcement of Mubarak's resignation, is available. The data was collected using Gephi connected to the Twitter Streaming API, converting the users and retweets to nodes and edges in a dynamic network. Though the data represents only approximately 10% of the retweets, it's interesting to see the large flow of interconnected retweets in just one hour.