The right word may be effective, but no word was ever as effective as a rightly timed pause. - Mark Twain
Sandra Grauschopf, the Contests Guide at about.com, led me to a good extension called SeoQuake. SeoQuake is a search engine optimization tool that is a browser plug-in. The site features a version for both Firefox and Explorer. The download is free, but there is a request for donations. Mike Muise at Dropthemike has a good review of the software and some related SEO advice.
The plug-in is an excellent tool to analyze your website's search engine optimization potential in one place – your browser. It also allows analysis of other sites pulled up in your browser. The developers that put SeoQuake together have four other SEO projects that they have developed. I have not had the opportunity to test out the other projects, but MoneyQuake is a plug-in that displays your website's earning statistics right in your browser and is next on my list to check out.