This may be the funniest pie-chart joke evar: "Percentage of Chart Which Resembles Pac-Man," represented as a pie-chart, resembling Pac Man. Link (Thanks, Fipi Lele!)
Update: Tom sez, "It seems like the Pacman pie graph was an idea just waiting to happen - it also shows up in this series of graphs I created last year." These are fantastic.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.