What book to read next?

So, since I've finished my books, I need to find something else to read. Even though I barely get any time to read, I have to have a book to read at hand. I came across a site call goodreads (which I wrote about on my other site as well) that works as a social network of sorts for books. You can list the books you have read, the books that you want to read, get and give recommendations on books and chat with others on books and authors. I signed up for it yesterday, but have only added one of the books that I just finished reading. Let's see how useful I find the site.