American Censorship Day
Try it. Go to BoingBoing and try to read some blog posts. Or try to make out the logos at Reddit or Metafilter.
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 (longer list here) 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.