Check out Reading Zone, an informative and fun new site for children, teachers, and grownups.
Reading Zone is designed for those three types of readers, and the grownups' page is particularly good. It shares book news, book lists, and favorites for adults interested in children's literature and/or reading to their children. For children, there are competitions and ideas for further reading after Harry Potter or Alex Rider.
According to Publishing News, Reading Zone is "the brainchild of The Bookseller’s Children’s Editor Caroline Horn."