I doubt at this point, anyone will be planning a trip if they aren't already, but I figure I'll mention it on the off chance someone is local-ish and wants to attend. Archon is mostly a scifi/fantasy con, but this year there is a webcomics presence. I don't have a booth or anything, but I'm going to be speaking on several different comics/webcomics related panels, along with a handful of local webcomics luminaries. If things go well, the hope is that next year's con will have a greater webcomics focus.
Check out Archon here. (http://www.archonstl.org/34/)
Strangely enough, this is going to be my first public appearance...at least, it will be Gibson Twist's first public appearance. How's that for ominous?