Wikipedia didn't do too well in "blacking out" the pages, a simple bookmarklet like this can show the contents:<p>javascript:function%20showArticle(){$("body%20div:hidden").show();$("#mw-sopaOverlay").hide();};%20showArticle();<p>Of course, the point was to spread knowledge about SOPA and its problems, but I would have hoped a real blackout, not serving the content hidden.
Considering that the point of the blackout is to raise attention, hiding is already enough. Anyone who gets to the content will be aware of the SOPA this way. I guess anyone can just use non-US proxy to get to the content anyway.