BookLikes is a book blogging site that has a book database (pulled from amazon and other partners), a personal blog, a personal shelving system, and a dashboard which functions somewhat like tumblr's dash does. You can import your book collection from other sites such as GoodReads. It's still relatively small (compared to say GR), but there is a small, but dedicated group of active members (including myself), who are always looking to make new friends.
Here's my blog, in case anyone would like to see what it looks like.
I also had an ulterior motive for posting about the site now. They've just started a series called "Follow Friday with book bloggers" in which a chosen BL member is given a list of interview questions to answer, and the BookLikes posts it on their own blog. Guess who the first person chosen to participate was? :D It was ME!!
Anyway, if any of y'all decide to join, please add me!