I have a post up at antenna called Notes on the Laugh Track, which is a blog version of some thoughts I presented last month in Madison at a conference on TV comedy. Some of the ideas in it may be familiar to long-time readers; for more, see these old posts:
-Hating on Jezebel James: The Laugh Track as Bad Object
-Upgrading the Situation Comedy
-Tween Comedies and the Evolution of a Genre (this one is from In Media Res)