Today is SOPA Blackout Day. Wikipedia, Reddit, Craigslist, WordPress and other leading web sites have gone dark today in a coordinated show of opposition to the Stop Online Piracy Act and PROTECT-IP Act. Google goes semi-dark, partially blacking out its logo on the home page but leaving the search service accessible. The protests themselves have now triggered a backlash, however. MPAA CEO Chris Dodd denounced the blackouts as a “dangerous gimmick,” while PROTECT-IP sponsor Patrick Leahy accuses the protesting web sites of “hiding behind the black box of self-censorship.” Even some opponents of the bills take issue with blackouts, such as Fordham University media professor Paul Levinson,” who argues that blocking access to information on sites like Wikipedia is a poor way to make a point about the dangers of blocking access to information on the Internet.