A friend of mine sent along a link to this lecture by Andy Clarke about how comics can inform webdesign. Most of the talk is a regurgitation of McCloud's theories, but he has some interesting parallels and ideas. (There's an mp3 of the talk that you can flip through the slides with).
Also, while I don't necessarily agree with the ideas, Gary Sullivan ruminates a bit on Closure.
Finally...I was sent a link to the Australian Cartooning School which has a decently formalist bent to analyzing and teaching cartooning. Definitely worth poking around the site.
Alright, heading back from San Diego soon. Perhaps I'll be able to muster up some convention/conference reports...