No I don't participate in any leagues, but my brother, Pat, does. Multiple leagues actually. And today I helped him in one of those League Fantasy Drafts. As opposed to a draft held online, this one was held at one of Pat's friends' house. It was pretty fun, and I think I finally realize just how much fun my brother has with it. And to a greater extent, how much fun it it for everyone else who participates in Fantasy Football, and other fantasy sports leagues.
In the past, I figured that I wouldn't want to devote so much of my time in all of it. I still am, though. Maybe next year I'll give it a shot.