Tom Morris

Having dropped in the code to implement it at del.icio.us, I'm a pretty big fan of MicroID. It's unexpectedly simple and useful for replacing most or all of those "stick this random bit of trash into your page, and come back in a few hours" verification processes. And what's more, sites can support it without needing to give you access to paste said trash bit into the HTML. Very nice, hoping to do more with it.