At the moment, my list consists of three.
1. This one might be a huge surprise! Al's Place Quantum Leap Forum! :eek I don't think I need anymore explanation, other than I love it here and would completely recommend it to anyone that enjoys Quantum Leap, but I think you all know my membership status here.
2. Buck Rogers in the 26th Century Forum, where I am a moderator, as well as pretty active in posting and working on the main site. Wonderful place to be!
3. The last one is on a forum about a television station, in which a few among you, would know what I am referring to. The problem with this forum is that the forum is only about the television, with no place for anything else. Plus, I'm afraid that there seems to be no contact between the regular members and the people that run the place, so most people don't really stay on the forum, but just post once or twice and then never return. The place is getting pretty dead, though, so I may stop checking on it soon and effectively bring my list down to two forums.
I am debating joining a fourth forum (not going to give the name), the topic being a video game called EarthBound, but I don't really know yet if I will. This may sound odd, but I actually take long consideration into rather I join a forum or not, because I am pretty active at the ones I joined. It took me nearly a week to decide to join Al's Place, and I have never once regretted that decision. :cheers