Search Engine Optimization Community

SEO forum recommended by Sergey Brin
In case you don't know it, Sergey Brin is one of the two founders of Google.

SEO Newsletter
An excellent free newsletter with over 100,000 subscribers. It is also quite entertaining. 

SEO News
Subscribe to receive daily or weekly SEO news. Good way to stay tuned to the SEO world.

SEO Articles
One of the largest collection of SEO resources on the Internet.

Web Marketing Information
Below is a list of sites that we find to be of good quality.

• Marketing Sherpa
• SearchEngineWatch.com
• WebProNews.com
• Marketing Profs
• SitePoint.com
• Marketing Wonk
• MarketingExperiments.com
• Excess Voice, also review
• Wikipedia Info on SEO
• Google Info on SEO 

SEO Consultants in Canada
A comprehensive directory of SEO consultants in Canada by province.

SEO Companies
Directory of top Search Engine Optimization companies.

SEO and Internet Marketing Consulting Firms
Internet Marketing consulting firms from the ODP directory:

• Business > Marketing and Advertising > Internet Marketing > Consulting

Seo-Today.com
Directory of everything related to SEO.

People interested in SEO by city (worldwide)
Social networks of people interested in SEO or providing SEO services