Everyone wants to know what their status is on the web. Do I have a great PageRank from Google? What's my status on Technorati? SeoQuake provides that data in a dashboard-style toolbar on the current web page.
On installation, the toolbar appears immediately. Actually, it took me by surprise because I was expecting a toolbar on the top where the other toolbars frolick and play. The transparent toolbar can become a little annoying, even in its shrunken form.
SeoQuake only displays on certain pages. I'm still trying to figure that one out. Is it because the web page isn't listed in their index?
Anyway, the toolbar, when expanded, gives you a quick at-a-glance view of your status on the web. The options available to you are enough to show where you need to focus your attention, whether it be Google, Yahoo, MSN, DMOZ, Rambler, Deli.cio.us, Digg, or Alexa. There are a couple other options that are useful to a point: an immediate whois on the current page, a robots.txt detection, and a way to view the source code of the current web page.
Another feature that stands out is the search results of your favorite search engine. SeoQuake attaches the same ranking details to the bottom of site listed in your search results. Nice to see how the competition is doing at a glance. ;-)
As I said before, the transparent toolbar may be more useful in the toolbar area as opposed to the browsing view, but shrinking it down allows you to move it so it doesn't interfere with your browsing.
Overall, I like the extension to glance at how everyone is rated in the blogosphere.