Jonathan Coulton's recent Seattle performance, the whole thing clipped up and YouTubed. (Thanks Matt.) Pretty low-fi with some skips, but watchable. Makes me all the more disappointed that I didn't hear about the concert in time (so at least I could have requested that he dedicate "You Ruined Everything" to all the parents that couldn't make it), but in it he does mention he plans to be at Penny Arcade Expo 2007 in Seattle, August 24-26.

Check out the spontaneous sing-along on "Mandelbrot Set," too. Awesome.