Here's another link from the Cybertelecom-l mailing list.
Across the Web today, you may have a hard time accessing your favorite sites. ... Those sites and logos are blacked out to draw attention to American Censorship Day, a major effort by a coalition of dozens of groups including Public Knowledge, the Electronic Frontier Foundation, Mozilla and Free Press to kill the "Stop Online Piracy Act". SOPA (H.R. 3261) is a bill moving through the House of Representatives that could rip apart the fabric of the open Internet, and introduce a new regime of online censorship.