A message Tuesday on Wikipedia giving notice of its self-imposed censorship Wednesday Hundreds, if not thousands of websites are expected to go dark or alter themselves Wednesday to protest proposed U.S. anti-piracy legislation that many believe goes too far fighting online copyright and trademark infringement. Josh Levy, campaign manager for Free Press, said in a Tuesday conference call supporting the protest that “This is the biggest revolt we’ve seen online” against U.S. legislation. The websites are expected to participate in the protest against the Senate’s Protect IP Act and the House’s Stop Online Piracy Act. They include brand names like Wikipedia, Wired, BoingBoing ...