Link, Link to AJAX client, Link to Katherine Berry's site (via Wonderland)
Katharine Berry, a student in the UK, has created an in-browser AJAX application that allows you to log into the virtual world of Second Life, but without all of the laggy graphics. This is a great way to pop in-world for a moment if you just want to chat with other residents, and as far as anybody else will be able to tell your avatar will look just fine (although mostly immobile).
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.