Google Tools

Google's stated mission of relevancy to the end user and their slavish dedication to that end has produced an incredible array of tools that ANYONE can use in order to measure market's , results , and do an endless variety of research. Here is the short list of GOOGLE TOOLS that I use an an seo specialist. With a relativly small learning curve you too can use these tools.

Key Word Tool (used to measure traffic for various search terms and phrase's)

Adwords (for 5$ you can open your own adwords account which will give you access to a range of analytic tools)

And in no particular order without links you have
*webmaster tools
*conversion tracking
*ads diagnostic tool
*website optimizer
*campaign optimizer

and many many more. Goto Google and start poking around and you find a much larger variety and selection. The best part is most of these tools are free.