Children's Literature Web Guide
http://www.ucalgary.ca/~dkbrown
The most comprehensive literature guide on the net on children's books

Carol Hurst Children's Literature Review
http://www.carolhurst.com/

Bookhive
http://www.bookhive.org/
Searchable, categorized database of children's literature. Includes publication information and reviews of each book listed. Allows readers to post comments.

Children's Book Reviews The Best Books...Picked by a KID!
http://users.erols.com/scholl/
This is a website written by a kid: by me, Adam. I've read all these books and I'd like to
recommend them to you. If you liked Harry Potter, you'll like these children's books, too. These have to be some of the best children's books ever written. 

Story Time Review
http://www.storytimereview.com/
Online guide to children’s books, including reviews, news, and summer reading ideas. With online ordering links.