Google’s Webmaster Tools Dashboard now comes complete with a keyword significance chart graphing your keywords. They rank the keywords found on your site by count, and in their words should “reflect the subject matter of your site”.
The list displays only one word keyword phrases, and appears to go as low as three characters. It noticed BWI on this site without a problem. I’m just wondering why usability isn’t over design for this site.
The unfortunate part about this new feature is the fact that when you download the list in CSV format, numeric values are not show along with the keywords. It’s just a list of words, but at least they are prioritized order.