Two bills aimed at fighting Internet piracy have bipartisan support and strong backing from the entertainment industry, but have sparked an unprecedented backlash from technology companies and free-speech activists who say the measures will allow government censorship of the Internet. Numerous websites, including the English-language version of Wikipedia, the popular culture blog BoingBoing, and the social news site Reddit planned to go dark at midnight last night in the largest protest yet against the legislation: the Stop Online Piracy Act, or SOPA, under consideration by the US House of Representatives, and the Protect Intellectual Property Act, or PIPA, a similar bill pending in the US Senate.