Uma Krishnaswami, author of THE GRAND PLAN TO FIX EVERYTHING (Atheneum 2011), has an essay on gender in the world of children's books -- including some of my own views -- over at the Women Doing Literary Things blog.
Also, take a look at the interview Cyn posted yesterday of Elizabeth Law and Allen Zadoff. Of particular note are extensive discussions of revising a manuscript and selecting a cover with boy appeal.
Also, Elizabeth Law is giving away a 30 page manuscript critique. Go check it out!