Let me start off by saying I am not for piracy, I am not for censorship. Do I think MegaUpload should have been shut down? Maybe. Only if they did nothing to stop the illegal uploads... but then again it's impossible to stop everything. Do I think the US Government should have shut the site down? Not at all. Why? Because the Government did not shut it down because of Piracy... they did it to show their power, SOPA. If SOPA would have passed MegaUpload would have been the example why SOPA was good, but since it did not pass they used MegaUpload as a way to show everyone that if they do manage to get SOPA to pass that they would use it to shut down Piracy not censor the web. Think about it, if they wanted to shut it down for piracy they would have done it long ago. MegaUpload was known for it's illegal upload and free download of copywritten stuff for years.
This is nothing more then a scare tactic, like the music industry tried to do. I remember back in the late 90's early 2000's when the music industry was suing people for illegally downloading songs. Why did they stop? Because it did not work. This is the same thing, this is the government using it's big stick to try to scare people into stop pirating. The problem is that it won't work... people will always pirate and will just get smarter on how they do it.
So what's next? I think the next target will be peer to peer file sharing sites and or torrent sites. They will start with the biggest ones and work their way down shutting them all down. Then if the people do nothing, SOPA will come back, maybe under a new name. And if we do nothing it will pass and the internet as we know it will be gone forever! Sites like google, facebook, twitter, so on and so on will be shut down to censor the people for "their own good". And that will start the dark age in the internet.