Check out my Recommended Reading page. Lots of great information from experts in the field and in the business of writing.
The newest addition:
“Debunking the Myths of Developmental Editing” by Tiffany Yates Martin, a blog posted on the Writers in the Storm: a blog about writing. A blog awarded by Writer’s Digest as one of the 101 Best Websites for Writers. She starts with the myth of “You always need to hire a developmental editor,” and goes from there. A must-read for all writers, in my opinion.
More links can be found here, on the Recommended Reading page.