Last weekend, I took part in a panel at Yoko Ono's Meltdown festival at Southbank in London, on "Technology and Activism," along with Jamie Bartlett (Director for the Analysis of Social Media at DEMOS) and David Babbs (Executive Director of 38 Degrees), chaired by Olivia Solon from Wired UK. It went well and covered lots of ground, and the Meltdown people were kind enough to put it all online.
BTW, if you're interested in my upcoming talks, I've got a page listing them.
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.