English Wikipedia, Craigslist and BoingBoing are down, reddit, and imgur are set to go down in 2 hours
Google, Mozilla, Grooveshark, Wordpress, and countless other websites, have all put up notices on their frontpages.
4chan has put black spoiler tag bars over all posts, as well as a notice on all sub-boards.
Techdirt has filled it's entire frontpage with SOPA news.
Facebook and Twitter are not going down, but Facebook might do something.
I'm surprised I haven't heard anything about YouTube, considering it's owned by Google.
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I feel like a guerrilla fighter who just had the tanks and planes come to back him up.