Cherazor's "Guide: Posing in Cosplay" was a fascinating look at the thought that goes into showing off your cosplay with well-thought-through body-language that takes into account your own morphology, the depiction of your chosen character, and the line between playful and sexualized posing.
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.