User blog comment:Lancer1289/Wikipedia Will Black Out in Protest of SOPA/@comment-217683-20120118093653/@comment-737801-20120118140419

No. Three wikis are doing voluntary blackouts. Call of Duty Wiki, Elder Scrolls Wiki, and Grand Theft Encyclopedia are participating. Others, Disney Wiki, Random-ness Wiki, MySims Fanon Wiki, Lego Universe Archives Wiki, Need For Madness Wiki, are limiting content and doing other things.

See more here.