If you are interested in learning more about writing for children, here are some links that I have found helpful:

The Society of Children's Book Writers & Illustrators
An international organization for writers and illustrators of children's publications.

SmartWriters
Includes a section on writing for children plus marketing news.

The Institute of Children's Literature
Offers a correspondence course for aspiring children's writers. The transcripts section includes interviews with authors and editors on a variety of topics. There is also a writing tips section that includes articles on various aspects of writing.

Children's Writing Resource Center
Articles, tips, and resources for children's writers.

The Purple Crayon
Harold Underdown's site includes an abundance of information about publishing and writing.

Writer's First Aid
Kristi Holl, author of the book Writer's First Aid, offers practical and inspirational advice about the writing life on her blog.

Education Writer
Author Laura Coulter post news about writing for the educational market on her blog.

Places to buy my books:

Enslow Publishers, Inc.

Or online booksellers such as amazon.com or Barnes & Noble.com