Do Corps. Really Not Pay Taxes?

The blogosphere has been abuzz recently with articles claiming that the majority of U.S. corporations do not pay taxes. Part of me finds this hard to believe, but then again the reality of the world economy is that capital will go to places where the least regulation exists. The crony capitalism of the recent GOP also makes me think this could actually be accurate. Hell, I'm thinking of incorporating myself. Incorporation seems like the easiest way to skirt the law. Food for thought.