Last year Kyle Thiessen created a series of "fake month at the museum" five-minute short films that explore different odd facts from history and the natural world. I've just started watching these, and I'm totally hooked. Whatever you do, don't miss the epic food disasters and creepy underwater things. Thiessen's delivery is great, and he's a superb editor. Combined with fab material, these videos are the perfect knowledge-snack for happy mutants.
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.