Aaron Wall of SEO Book fame http://www.seobook.com/ has a great SEO plug in for Firefox users. This free tool is pretty powerful and puts a lot of resources at your finger tips. Below are two screenshots of a Membership Management Houston search on Google. Without the plug in installed I get a normal search result. Below that is a search result with this plug in active(you can activate and deactivate by clicking on the graphic in the bottom of your browser). When the plug in is activate you are provided with a wealth of information. For instance you can get a quick view on keyword research by clicking on KW Research directly below the input box. You can also see a traffic estimator from Google on a term. For the results you have a slew of links below that can help you get a better idea of what a result offers.