Due to my anger with earthhour.org.my on the other day..
I bump on to http://whois.domaintools.com/ [domaintools.com] ..

And somehow at the left menu.. it got “SEO Text Browser”..
When I click on it.. another iframe browser popup inside the page.. enter a address.. and puff.. it come up with a SEO text browser for the page.. and also the score beside the “go” button..
hmm.. and also got some info on how to optimize the SEO..
the reload button also cool.. try changing the blog themes and reload that SEO text .. it reflect the score immediately ..

how nice..

In the Optimization Notes ..

“Optimization Score : 95%” with  the old themes.. huh..~.. then decided to permanently reverted back to old one..until  I got my custom theme in place..

there are few others such as :

1. http://www.seo-browser.com
2. http://www.domaintools.com/seo-score/
3. http://blog.domaintools.com/2007/02/seo-score-explaining-googlebots-perspective/

p/s : Does SEO really matters to you,anyway ?