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The white-paper the RIAA doesn't want you to see! This is Edward Felton's notorious research document explaining security flaws in SDMI, subject of all manner of horrendous litigation under the DMCA's anti-circumvention clause. 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.