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Apropos of the Larry Ellison link: Dogland by Will Shetterly is the best genre novel about the Fountain of Youth, ever. I haven't read it in three years and I can still taste it in my mind. What a book! Link
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.