Free Keyword Research Tools

I was visiting Dan Thies' revamped SEO Research Labs site and found a couple SEO tools he linked to that may help your efforts.

MoreGoogle Adds Features To Google Search Results

Andreas Pizsa has created an impressive, although unofficial, Google add-on that changes the way Google result pages appear to users who install it. The utility, called MoreGoogle, adds new features to Google SERPs in an effort to improve user experience.