Good advice, Rands. Every book I've written was vastly improved by the editors, and I'm continually astounded when people claim they don't need an editor.

Dossy:

There's no way blog comments will ever serve the purpose of editors. The fact is, your blog readers are most likely unqualified for the task. If your blog readers all happen to be editors, then I suppose they'd be qualified, but I can guarantee they'll never agree on anything.

It's easy to think readers are acting as editors - say "it's" when you mean "its" or "affect" when you mean "effect" and you'll probably get lots of corrections, some with a disturbing amount of anger. But nobody's looking at the overall structure, or the fact that your second paragraph is completely redundant, or the disagreement in verb tense, or the lack of consistency in how you refer to particular items...

I'm not saying blogs need editors, but you do have to put on your "editor hat" from time to time and try to improve things.