I just finished listening to Tim Bray's talk on Atom from ETech. Yeah, I'm behind on listening to IT Conversations--still catching up from vacation. This is an excellent talk for anyone interested in standards, RSS, or Atom. I also went back and read my original notes from the talk (I heard it live too).
It's interesting to me that even when I've heard a talk live and blogged it, going back on IT Conversations and listening to it again gives me fresh information. I think it's about context--I hear it now in the context of everything that happened since March and what I'm working on now, so it has new meaning.