Tomorrow, on January 18, 2012, dozens of popular websites covering a diverse range of subjects will be blacking out their home pages in protest of the U.S. Stop Online Piracy Act (SOPA).  Some of these websites are well-known, such as the English language web site for the encyclopedic Wikipedia and quirky news site Boing Boing,

SOPA: Homeland Security weighs in, MPAA is reticent. Clearly, the House Judiciary Committee needs some authoritative, neutral advice on the mechanics and implications of DNS filtering.