Stanford primatologist and anthropologist Robert Sapolsky scores big with this grad lecture on "The Uniqueness of Humans," a humbling, inspiring and sweet 30 minutes on what it is about humans that makes us unique from our animal cousins, and how many of the seemingly unique features of humanity can be found elsewhere.
Sapolsky make me want to go back to school, enrolling in the Stanford anthropology program, just so I can take his classes.
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.