Also started a fan group on artist Teri S. Wood...
and most of my moderating time gets spent on Comciart-l, the comic art collecting Yahoogroup...
For erotic artwork, I inherited an adult group on artist Julius Zimmerman, because I'm friends with the artist (the largest, at 8000+ strong)...
That's several hours a day just in keeping those few groups current and up-to-date. You do meet the most interesting people though. ;-)