With all the fun we've been having lately - I just wanted to post a pointer to the last ArcReady event we hosted.  Architecting for Scalable and Usable Web applications.  Twitter, are you working on it?  I've been a fan since last year's SxSW, but you're DYING at this point.  I may have to listen to whurley and just moved over to Plurk (or whatever comes after - Michelle is already a bit annoyed with the latest in Social networking and I'm not that far behind.)  Have we really created Larry Niven's Permanent Floating Riot Club already?