Today I share my thoughts on Library Thing (although I did mention it during my Shelfari post). It's so simple: catalog the books you own, assign tags to your titles, rate them, review them and join groups to discuss them. You can also personalize your page to include recommendations from other Thingamabrarians (as we are called), author visits in your area and a listing of members who have the same titles in their library as you. Tagging also gives you the option to catalogue your collection outside of Dewey convention. For instance, I have tags called "movie tie-in" and "tv tie-in" to designate books in my collection that have been adapted into film or television. I also use the tag for books from films and television series.
The best and most unusual features of Library Thing are the Suggester, which is basically recommendations based on your catalog and the Unsuggester, which recommends titles that are the antithesis of your library collection. Another signature feature is the opportunity to received free books from publishers to review for the site called "Library Thing Early Reviewers".
I can't really explain my collection. This collection isn't every book I own, but it does represent what I love after reading- art. Check out my Library Thing. I hope to see yours. Until then, keep reading.