What is Technorati Authority and is it important?

I’m seeing the request for site ranks for Alexa, Technorati, Klout and Google all over.  Reviewers, what are your thoughts about these ranks and the best ways to get a good ranking?

I recently signed up for Technorati and have to verify my blog claim TVVSQ8CTGKTQ

What is Technorati Authority exactly?

“•Technorati Authority measures a site’s standing & influence in the blogosphere. With the October 2009 redesign of technorati.com, we’ve changed the Technorati Authority calculations to better reflect the continually changing attention of the blogosphere.

•We have also added a new measure of Technorati Authority, which is topical by content category, i.e., technology, movies, automotive, etc.”

Read more: http://technorati.com/what-is-technorati-authority/#ixzz1DlQd8ulx