Search Engine Roundtable posted a nice list of useful SEO tools. These are some great ways to augment your web marketing. www.seroundtable.com

Easy SEO Guide – Step-by-Step Search Engine Optimization.
This Is A Detailed Step-by-Step Guide With Complete SEO Strategy. It Will Lead You Through The Entire Search Engine Optimization Process In Simple Steps. It Provides Valuable Information Along With Interactive Links And Tools, Examples And Worksheets.