Online keyword popularity tool gives interesting results
I was testing the Web 2.0 technologies and I wrote a tool using Ajax and WebServices to get the popularity of any keyword in the web using the Google search engine results.

This can be very useful for webmasters to see the amount of competency who exists in the web for some keyword or phrase and perform a better SEO.
Also, it’s very interesting the results obtained for some words compared with others.
You can use it here: Keyword Popularity Tool
I’m working in a couple of other interesting tools related to Google SEO, the web and analysis about that… when I have time I’m gonna publish here…