Wired has a great on article on BitTorrent titled, “The BitTorrent Effect” in their January 2005 issue. It covers BitTorrent from a number of angles: it’s development, political issues, media issues, etc.
I personally don’t use BitTorrent. I’ve got a high-speed DSL connection and really don’t see the need. If I was looking to download movies, I might use it, but for now I’m an interested non-user of BitTorrent.