Technorati Ranking relates to the number of sources that point to your blog relative to other blogs. The more sources referencing your blog, the higher the Technorati ranking. The Technorati Ranking for a blog is displaying in URL Search results, Blog search results, and is displayed in the account profile for all claimed blogs.
Technorati Authority is the number of blogs linking to a website in the last six months. The higher the number, the more Technorati Authority the blog has.
It is important to note that they measure the number of blogs, rather than the number of links. So, if a blog links to your blog many times, it still only count as +1 toward your authority. Of course, new links mean the +1 will last another 180 days.
Whether or not you intend to use the service as a bookmarking tool, the fact is, if you want more hits, you’d better network for some links and favorites.
Unbelievable, I have never signed up fr the service, so today I will.
The sign-up is painless. They simply want to know your name and whether or not you are human.
Once you sign up, they will ask you to claim your site. This is a good idea if you want to assure that your links all count. They will also ask to claim your open ID. Both of these items are optional.
What to do after you sign up
Visit the support forum.