It’s one of my pet peeves that there is so much unreliable information on the internet — regarding online marketing in particular. So people looking for good information may come across a less informed article and take that as the best advice. It doesn’t work for them and so they think that online marketing is rubbish.
SEOBook Forum (membership required)
Webmaster World
High Rankings Forum
SEO Refugee
Cre8asite Forum
Search Engine Roundtable
Search Engine Journal
Sphinn
Search Engine Land
Search Engine Watch
Search Engine Guide
SEO DoJo (membership)
UK SEO Forum
V7N Forum
BlackHat Forum ( yep!)
Wicked Fire
Small Business Trends
I’ve followed a number of these sites over the years and I learned much of what I know about SEO via Jill Whalen’s High Ranking Forum. I was really pleased to see Search Engine Journal on the list, since I’ve just started to contribute there (phew).