Today's XKCD is a fantastic, pithy and sharp commentary on the perils of buying DRM-locked media. I love this strip. Steal This Comic (Thanks to everyone who suggested this!)
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.