I'm pretty much monofannish, and I'm not quite sure what it takes for me to get into a fandom, but I know that I only consider myself a part of it if I *write* in it. So my only fandoms so far have been Star Trek:The Next Generation, and popslash. I would still be part of popslash fandom if there were a popslash fandom still to be part of! I suppose, to be fair, I've also been writing quite a bit of Adam Lambert, usually paired with Lance Bass, because of course!

I do read quite a few others, quite often related to books I've known and loved for many years - eg Lord Peter Wimsey, Narnia, Vorkosigan stories, Jane Austen.