This site offers a wide variety of ways to find your next book. You can search by reading level or find out what's new in children's literature. You can take a reading inventory quiz to find out books recommended for your reading personality type. Just finished a great book? This site has a "read alikes" page that will help you find a book that is similar.
This site is a great resrouces when you are trying to determine the educational value of a particluar title. It rates each title for educational value, [positive messages and role models, violence, and language.