If you want to write children's books, join the Society of Children's Bookwriters & Illustrators! They offer community, conferences, tips on craft, query and pitch samples and much more. www.scbwi.org
This free newsletter from Publisher's Weekly shares news about children's book publishing and highlights recent book deals. https://www.publishersweekly.com
Children's book authors, agents and publishing - all at your finger tips, thanks to Casey McCormick and Natalie Aguirre. http://www.literaryrambles.com
Read books about writing: Stephen King's On Writing; Anne Lamont's Bird by Bird; Natalie Goldberg's Writing Down the Bones; and Blake Snyder's Save the Cat.