My friend Yasuko is the most talented massage therapist I know, not least because she's always studying anatomy and related subjects. Last week, she raved to me about the Integrative Biology 131 classes that UC Berkeley puts on YouTube, taught by Professor Marian Diamond, who has many claims to fame, including working with Albert Einstein's glial cells. She's also an engaging and clever lecturer, charming and informative. The class runs to about 48h worth of lectures, and it really is fascinating stuff.
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.