And on a more serious tone, here's a link to The Nuts and Bolt's Guide to Writing Children's Books (by Linda Ashman) that came highly recommended. I want to check it out myself: http://www.lindaashman.com/newsletter.htm
P.S. Here's one more by Jon. Well worth the 14 minutes. He discusses boys for books and his organization, Guys Read. Anyone who wants to write for boys...it's worth the time to watch this.