If you haven't heard about it yet, then here is something fantastic for bibliophiles. Do you have a catalog of books that sit on your shelf for you to admire? Would you like to share your library with others, but without loaning them out? http://www.librarything.com
You can arrange your books on a virtual shelf and connect with people who read the same things as you or you can keep it private. You can get recommendations based on your interest. The first 200 books are free! It's great.