When I tried to access the site at work (we use Postini for our web filtering), I got the message below. What I found most interesting was the category the site was blocked under.
Access Denied The web resource http://occupygeorge.com/ has been deemed by your administrator to be unsafe or unsuitable for you to access. The resource has been blocked. No further action is required. Reason: The category of Hate Speech has been blocked by your System Administrator