An Introduction to Keyword Research Using Free Tools

To know more about some useful tools and techniques in keyword research projects http://www.seomoz.org/ugc/the-beginners ... free-tools
A Dedicated Room for Testing, Experimenting, Listing & Discussing Internet Marketing Innovation
http://www.wyselabs.com/marketinglab/
http://www.wyselabs.com/marketinglab/viewtopic.php?f=16&t=3531