I have received valuable support and advice through the Society of Children’s Book Writers and Illustrators, and you might see if there is a chapter in your area. Other helpful resources include the latest edition of the Children’s Writer’s & Illustrator’s Market, available at many bookstores, and the websites of Cynthia Leitich Smith and Harold Underdown. Also, writing organizations like The Writers’ League of Texas, GrubStreet, and Loft offer terrific classes on the craft and business of writing.