Wikipedia didn't do too well in "blacking out" the pages, a simple bookmarklet like this can show the contents:
javascript:function%20showArticle(){$("body%20div:hidden").show();$("#mw-sopaOverlay").hide();};%20showArticle();
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.
