Update: Mark sez, "I conducted a video interview with Open Source Cinema founder Brett Gaylor for flasher.com and you can find it at the suggested link. He's a good talker and he outlines his project and the ideas behind in detail."
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.