LibraryThing is a site that I see can be used by small libraries to make it easy to catalog books. I could use it for my personal collection and share with colleagues and friends. I like the idea that you can rate and review the books and see what others have to say. It is also neat that you can see others' lists. I love to read, and I appreciate recommendations from others about new books or authors.
I've added some of the books I've read most recently to my library collection. I created a link from LibraryThing to show you my interests. Of course, you have to take into consideration that because I am in school, some of my interests are influenced by required course readings.