One Per Cent: Occupy vs Tea Party: what their Twitter networks reveal
Those tweeting about the Tea Party emerge as a tight-knit "in crowd", following one another's tweets. By contrast, the network of people tweeting about Occupy consists of a looser series of clusters, in which the output of a few key people is being vigorously retweeted.
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Analysis of Twitter usage by people from both sides of American political spectrum reveals interesting patterns. The article doesn't try to conclude what does it actually say about these constituents.