In their "About us" section this is what hey have to say:
"Technorati is currently tracking 83.5 million blogs
Technorati is the recognized authority on what's happening on the World Live Web, right now. The Live Web is the dynamic and always-updating portion of the Web. We search, surface, and organize blogs and the other forms of independent, user-generated content (photos, videos, voting, etc.) increasingly referred to as “citizen media.”
But it all started with blogs. A blog, or weblog, is a regularly updated journal published on the web. Some blogs are intended for a small audience; others vie for readership with national newspapers. Blogs are influential, personal, or both, and they reflect as many topics and opinions as there are people writing them.
Blogs are powerful because they allow millions of people to easily publish and share their ideas, and millions more to read and respond. They engage the writer and reader in an open conversation, and are shifting the Internet paradigm as we know it.
On the World Live Web, bloggers frequently link to and comment on other blogs, creating the type of immediate connection one would have in a conversation. Technorati tracks these links, and thus the relative relevance of blogs, photos, videos etc. We rapidly index tens of thousands of updates every hour, and so we monitor these live communities and the conversations they foster.
The World Live Web is incredibly active, and according to Technorati data, there are over 175,000 new blogs (that’s just blogs) every day. Bloggers update their blogs regularly to the tune of over 1.6 million posts per day, or over 18 updates a second.
Technorati. Who's saying what. Right now."
Way cool. YOu should check them out.Technorati Profile