There were a couple of halfhearted ones out there with weak sporadic activity, though unfortunately I don't have any links on hand. The most active forensic pathology discussions are generally on the NAME email listserv, but it's restricted (check thename.org for ways to join - it's not HARD to join, but is somewhat involved). Off the top of my head I can't think of a good, consolidated forensic path forum for residents/fellows or interested students. If I come across one on a review of my old bookmarks/etc., I'll post, but I haven't had a chance to look into that sort of thing in the last year'ish. Let me know if you find one?