Yeah, Amazon has a small link (which blends in with their page!). So far, I have noticed Wikipedia is all black, Google is blacked out, 4chan has 'censored' (For lack of better word, as that site is never actually censored. lol) their entire website, Even craigslist.org has a message up on the site, and of course IMCDB is censored as well.

I'm surprised Youtube hasn't done anything to show support.

I guess the site to check out now for anyone looking to help out/contact those in charge is: www.sopastrike.com