A blog you should know about: http://bookiewoogie.blogspot.com/
The Bookie Woogie blog is one of the most clued in reviewers of children's lit around. Why is that? Because the reviews are done by actual children (with some assistance from their illustrator father.) Isaac, Gracie, Lily and Elijah (assisted by Aaron Zenz) post conversational reviews that give some fantastic insight into what kids really like in their books.
If you create stories or illustrations for children I highly recommend their site.
Also check out Chicken Nugget Lemon Tooty for some fantastic art created by these kids. Super creative and fun stuff there. Honestly it's one of my very favorite blogs.