I recently found a site that is quite similar to LibraryThing. The site is called goodreads. It is a way to catalog your books and also review and rate them. The site also focuses on community and connecting with other readers. One thing goodreads has going for it is that there is no limit to the number of books you can catalog on a free account. LibraryThing has a 200 book limit unless you pay for your account. If you love to keep track of your books I suggest you check it out. I still haven’t decided if I like it more than LibraryThing, still giving it a test run.