Hmm, David Ansen of Newsweek is starting a monthly moderated discussion of his favorite movies. Ansen isn't my favorite movie critic, so I'm not particularly interested in the particulars of his group, but it does seem to me that the explosion of interest in blogs, wikis, and podcasts has, perhaps, changed the sorts of 'moderated discussions' that one could have.
Might be an interesting way to get feedback on my writing...