Phrases and hashtags like “Stop SOPA and PIPA”, #SOPA, #IfTheyShutDownTwitter, “Why SOPA is dangerous” and #FactsWithoutWikipedia have been hitting Twitter’s trending topics all day today, as websites like Wikipedia and Reddit go dark to protest the US Stop Online Piracy Act.

SOPA has been all the buzz on Twitter, and one intrepid researcher has already created a visual map of how the conversation looks between its most vocal commentators.
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