Mike Guppy's "Selected" project is a series of fine-art images as animated GIFs in which the principal subject has been removed and replaced by a "marching-ants"-style selection border similar to the ones you'd see in GIMP or Photoshop.
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.