SEO Chat
Lots of SEO tools and links, they have a popular frums where you can get some very good tips & tricks from the experts and novices alike.

SEO Guy
Very popular SEO forum where you can exchange ideas and learn from seo professionals.

Digital Point Forums
Digital Point forums like most of the forums above are an excellent way of learning the art of Search engine optimisation. You can ask the experts or other users and learn the Do's and Don'ts of SEO.

This is definately one of the best forums and places where you teach yourself the art of SEO or you can as the help of users.

Bruce Clay
A great introduction to Search Engine optimisation here. Bruce Clay's website is packed with all the latest seo information, ideal for beginners and also advanced users.

Search Engine Watch
Keep updated with all the latest search engines news with Search Engine Watch. Learn how to optimise your web pages effectively.

SEOptimism .com
Learn how to optimise your web pages for greater visibility.

The Warrior Forum

Probably the best online forum for internet marketing including search engine optimization, adsense, adwords, cpa and general online marketing. If you want to know how to make money online, then you really want to go here.