Google has now started showing what it believes are the most significant for you website.
Here's what Google believes are the most important keywords for
SMTUSA.com
"The Keywords page lists the most significant keywords Google found when crawling your site. The significance of each keyword reflects how often it's found on your site's pages. Click each keyword to see a sampling of pages on which it appears."
Google goes on to recommend:
"If unexpected keywords, such as "Viagra", appear on this page, this could be a sign that your site has been hacked. "
It seems as if Google is giving you a nice easy way to determine if your site is really portraying it's self the way you intended.