I've been writing fan fiction long before it was called fan fiction.  We just called them stories back in those days of high school.  I've been actively writing on the net since 1998 in fandoms such as Voyager, Kung Fu: the Legend Continues, Lancer, Chase, Magnificent 7 and Supernatural.  I'll be honest, Mag7 and Supernatural hold the muse's interest these days. Mag7 for that matter, has held it for several years now and I have several WIP's to attest to that fact!  LOL!!