It also offers an "authority" and a rank. The authority number is the number of inlinks to a blog (that is, the number of links from other blogs to the blog you are reading). The rank is calculated based on your authority rating. The higher the authority the closer the blog is to the top and the smaller the rank. So, a rank of "1" is a top-authority blog, if you will.
Technorati's front page also provides headlines of "rising stories" in the blogosphere that are interesting to peruse in their own right.
Another useful source for finding blogs is Google's blog search. In addition to being able to search the blogs indexed by Google, it also provides on its front page top stories on the blogs or on Web pages that are inlinked from other blogs.