Washington Post 
January 17, 2012
Wikipedia, Reddit and Boing Boing are planning to black out their services Wednesday to protest the Stop Online Piracy Act and the Protect IP Act by showing users the bill’s effect on Web companies. These companies object to language in the bills, which are aimed at stopping online piracy on foreign Web sites, that grant the U.S. government the right to block entire Web sites with copyright-infringing content on them from the Internet.
Wikipedia will block all of its English-language pages — the first time since the encylopedia’s 2001 launch that it has ever restricted access to those pages as a form of protest.
“[It’s] a decision that wasn’t lightly made,” the company said on its blog Monday . The decision to take down the free encyclopedia’s English pages was made with the input of 1800 Wikipedia users who voted overwhelmingly in favor of the blackout, according to statement from the Wikimedia Foundation .
It’s also a form of protest that isn’t for everyone.
Twitter, for example, has been a vocal opponent of both bills, but chief executive Dick Costolo said the service has no plans to participate in a blackout over the bills.