The Horn Book
This classic review magazine has outstanding articles as well as reviews.
Booklist Home Page
The review source from the American Library Association.
School Library Journal
Lots of articles, book reviews and great web links too.
National Education Association
This connects to the Professonial Library site for the NEA - providing both professional development books and videos - and some books can be downloaded
Welcome to Oyate
A source for Native American Materials
The Bulletin of the Center for Children's Books
From the University of Illinois.