My university publishes a list of choice books that our specialized cooperative children's book center every year. It is created by librarians and contains the newest books that are available and that are of high quality. Unfortunately, to get the newest year's edition, you have to pay $10 if you're not in Wisconsin. But the past editions are available online through this link-- [url]http://www.education.wisc.edu/ccbc/books/choices.asp[/url]. You can find the past editions under the header "Past Editions of CCBC Choices" by clicking on the link "University of Wisconsin Digital Library". They have a lot of great books in there!
Hope this helps! Good luck in your quest.