Whichbook is a neat site at which you choose what content you would like in a book, and based on your selections, the site generates a list and description of books that may interest you.

According to the website, "instead of starting from the overwhelming choice of books available, whichbook.net starts from the reader, and enables each individual to build the elements of that elusive 'good read' we are all looking for but don't quite know how to define."

check it out.