I always thought Twitter was kind of cool, but according to this article, the organization also is a hero for free speech. The AlterNet piece by Ida Hartman says that Twitter has challenged a subpoena from the U.S. government aimed at Wikileaks and its supporters. According to the piece, the subpoena could give the U.S. government access to information on the more than 634,000 people who follow Wikileaks on Twitter. (I'm one of those folks.)
Hat tip to Fly Agaric 23 for calling my attention to this on his blog. RAW of course was always a champion of free speech.