Agent/Editor Blogs

Pub Rants
Alan Rinzler
Cheryl Klein
BookEnds LLC
Guide to Literary Agents (Chuck Sambuchino)

Author Websites (writing and publishing tips)

Cynthia Leitich-Smith 
Simon Rose
Nathan Bransford

Online Writing Workshops

Holly Lisle
Writer’s Digest University
Writers.com

Advice on Writing and Getting Published

The Purple Crayon
Holly Black
Children’s Book Insider
FictionAddiction.net
Preditors & Editors
Writer’s Digest

Writers’ Associations

Society of Children’s Book Writers and Editors
Canadian Authors Association
Canadian Society of Children’s Authors, Illustrators and Performers

Agents and Publishers

Query Tracker.net
Agent Query
Association of Authors’ Representatives
Publishers Marketplace
Colossal Directory of Children’s Publishers

Writing Forums

Absolute Write Water Cooler
Verla Kay’s Message Board for Children’s Writers and Illustrators