SOPA needs no introduction. But if you've been diligently ignoring it up until this point, good luck getting through January 18th as an uninformed citizen. Google, Wikipedia and a host of other websites are either going dark or making huge, unmistakable statements on their homepages in protest. Google's tagline? "End Piracy, Not Liberty." Pretty much says it all, really. If you've spotted another site rebelling today, shout it out in comments below -- and while you're in the shouting mood, give your local officials a holler and let 'em know just how much you disapprove.
P.S. - An amazing breakdown of this whole thing can be found here at reddit.