I tried Library Thing a while ago and I thought it was interesting but I didn't keep up with it. I didn't see where it would really be of use to me. I put a few of my personal books up and moved on. There is a site or two that will allow you to do the same thing with your DVD's. I did make a list of my bootleg CD's for trading purposes and I did that at Writely.com. That allow me to share what I have so I can trade with other collectors. To each his own, I guess.