Playboy May 2011 $5.99 Cover: Karina Smirnoff- six-time U.S. ballroom dancing champion and the hottest pro on "Dancing With The Stars." Features: Top Party Schools 2011: The 10 most happening institutions of higher learning in North America. Socrate's Publicist: What if the philosopher had hired someone to do his PR? By Demetri Martin. The Freak: Kevin Cook reveals why pitcher Tim Lincecum deserves his weird nickname. 2011 Baseball Preview: Tracy Ringolsby predicts which teams will domin...