Ok so from what i understand (thanks to the video i just watched), it sounds like sopa is going to destroy Facebook, Twitter, YouTube, Everything thats fun and brings people joy.

S.O.P.A(Stop Online Piracy Act) is a bill that the US government are trying to get through. It basically means if it happened then they would be able to censor content on the internet, and anything breaching copyright would be removed, the person uploading the content may be fined, and the website hosting it, may be taken down. So it could be an end to Youtube, Facebook, and many other sites. At the moment many sites have shut down protesting against it; for example Minecraft, and Wikipedia, also check PIPA out, as that is another bill that the US government are trying to implement.