Sara sez, "The British Humanist Association is stocking Christmas cards featuring naturalist Charles Darwin getting into the festive spirit."
I'm a lifetime member of the BHA -- they do good work (and make nice Christmas cards).
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.