I had had a Library Thing account for a while. As was the case with many of these 2.0 applications, I had created an account but hadn't explored the many features. Thanks to the 23 things group for outlining different ways to noodle around. It has been helpful.
That being said, I looked at the review features, the popularity of the title, and a few other things. I think most helpful for me are the suggested reading lists generated by Library Thing. Because I am always looking for new ways to develop our collections and forever making wish-lists, this feature is especially helpful. I would love to make my catalog more accessible and user-friendly.