A book that I have in Library Thing is Billy Boyle: a World War II mystery. One that was recommended is Royal murder by Elliott Roosevelt. They are both historical.
Library Thing is fairly easy to use. I find it easy to enter books. It is a little harder with dvds since they don't, or I don't have ISBNs.
I love the recommendations (for the most part). Some are a little off. I don't necessarily want to read about the history of Norway because the book was set in Norway. And the book on organizing had a recommendation for soap making. That's more than I want to do. However, there were other items recommended that I would be interested in. Under groups I found a historical fiction one with worthwhile recommendations. You can do a number of fun things with Library Thing.