The bill is real and that website is a combination of groups trying to stop it.
I'll leave this. I can link more websites if anyone wants it. Including several petitions.. although just going to the american censorship day website(which has a video as well as names of many of the opposing groups) should work...
http://www.opencongress.org/bill/112-h3261/show
The biggest issue everyone is having is that it could block sites like twitter, tumblr, facebook.
And this website.
Any content that is copyrighted, if even a portion of the website is dedicated to infringement, can be taken down, and by "dedicated" I mean anything on a website that is copyrighted, regardless of "fair use". Or, basically, using something for non-commercial use.
The video clips on this website are considered copyrighted by Square Enix. So is the music you all use your videos, unless you sing it and play it yourself, and only if it's not a cover.