Wikipedia
The internet's most popular destinations have launched an audacious experiment in political activism by urging their users to protest the Stop Online Piracy Act. Wikipedia's English-language pages went completely black at 9 p.m. PT, with a splash page saying "the U.S. Congress is considering legislation that could fatally damage the free and open Internet." The online encyclopedia's blackout, intended to precede next week's Senate floor vote on the legislation, is scheduled to last 24 hours.
