"US websites that contain content describing how to get around the blocks, or US websites that decline to take down links to blocked websites are liable"
Could you cite the parts of SOPA that led you to this conclusion? I looked here: thomas.loc.gov/cgi-bin/query/z?c112:H.R.3261: (there's a colon at the end of the URL) and found only provisions that apply to search engines, ISPs, payment processors and ad networks, not generally "US websites". With regard to anti-circumvention, I found only references to "product or service designed or marketed for the circumvention". I don't think that encompasses "content describing how to get around the blocks".
Could you cite the parts of SOPA that led you to this conclusion? I looked here: thomas.loc.gov/cgi-bin/query/z?c112:H.R.3261: (there's a colon at the end of the URL) and found only provisions that apply to search engines, ISPs, payment processors and ad networks, not generally "US websites". With regard to anti-circumvention, I found only references to "product or service designed or marketed for the circumvention". I don't think that encompasses "content describing how to get around the blocks".