I hope they don't pass this, but you know the government doesn't like that thing called freedom very much. Anyways if they do, and you have firefox you can use a firefox add-on called DeSOPA. The SOPA bill will only block domain names, but not IP addresses. DeSOPA automatically redirects you to the IP address when you enter the URL. If enough people know this then it wouldn't take long to beat this anti freedom bill.
How to Sidestep this SOPA Nonsense Entirely