SEO XRay Tool provides instant view of key website elements. See instantly while visiting any web page: title tag, meta-description, meta-keywords, with links to whois, and Blekko for link counts and information. SEO X-ray is part of the SEOBook.com Toolbar.
While viewing a website, simply hit the SEO x-ray button and a small window will pop up providing an instant view of the page title, keyword meta data, and page description meta data in a pop up box. In the box will also be three links to Blekko.com that will provide instant count of inbound links to the domain and lots of other SEO data. Blekko now charges $99.00 a month to see SEO data. They have a free trial, so you can see if you like the service, but I get that SEO data from other sources now. Outside the box the page will show all H-tag elements. Screenshot example below captured at www.elocalroofers.com

It does get a little glitchy with java script elements, but all you have to do, is click and drag the box away from the java script elements on the page that interfere with display.ajmalseotips.blogspot.com