Today's XKCD, HDTV, hits it right out of the park for me. HDTV is such a goddamned yawn for me -- a giant screen with only one window on it? Friends in HD, so you can see all the duct-tape holding the set together and the makeup caked over the actors' pores? Be sure to click through and read the very trenchant tooltip when you hover your mouse over the original cartoon.
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.