I think that's a great idea. The vast majority of people do nothing until it hits them personally, that's why there's so much apathy. Cut Wikipedia for a week, something used by so many people, and then normal people will start caring. Show Americans what it can look like to be behind a firewall by having many popular sites blank out for a week, and by the end of the week the whole country will be in an uproar.

There's nothing more powerful to make people move and contact their representatives than blocking them from their farmville, celebrity news, homework help (wikipedia) and so on.