Albeit there are lots of TV shows/movies I love to watch and books I love to read, there are very few fandoms in which I am really involved in.
House M.D., Hugh Laurie and Dark Angel are my main fandoms and I almost only read fanfictions regarding the FOX TV shows House M.D. and Dark Angel.
Sometimes I post some things regarding other shows, too! But mainly on the IMDB message board because I can comment there on almost everything TV related without having to sign up for yet another website.
My favorite part of being involved in fandom is getting to know new people, learning new things and exchanging points of view while discussing about our mutual favorite topics.
I have been to several meetups with other House M.D. and Hugh Laurie fans on the occasion of concerts by Hugh Laurie and his Copper Bottom Band.
I have met my best friend on a German House M.D. message board