I’m not a big novel reader, but if I find something good, I can’t put it down until I’m done. I’ve got a small collection of books that are on a couple of bookshelves in my house and I’ve never felt the need to catalog them. But if you have a lot of books, and you’d like to “meet” other with similar tastes, then LibraryThing may be for you. It is a service which catalogs your books and also adds some social networking features:
LibraryThing is an online service to help people catalog their books easily. You can access your catalog from anywhere—even on your mobile phone. Because everyone catalogs together, LibraryThing also connects people with the same books, comes up with suggestions for what to read next, and so forth.
There is a free account (up to 200 books) and paid accounts. If this is your thing, then check out LibraryThing!