BLOGOSPHERE GROWTH

David Sifry has updated the latest state of the Blogosphere as measured by Technorati. His numbers on Blogosphere growth in summary:

* Technorati now tracks over 27.2 Million blogs
* The blogosphere is doubling in size every 5 and a half months
* It is now over 60 times bigger than it was 3 years ago
* On average, a new weblog is created every second of every day
* 13.7 million bloggers are still posting 3 months after their blogs are created
* Spings (Spam Pings) can sometimes account for as much as 60% of the total daily pings Technorati receives
* Sophisticated spam management tools eliminate the spings and find that about 9% of new blogs are spam or machine generated
* Technorati tracks about 1.2 Million new blog posts each day, about 50,000 per hour
* Over 81 Million posts with tags since January 2005, increasing by 400,000 per day
* Blog Finder has over 850,000 blogs, and over 2,500 popular categories have attracted a critical mass of topical bloggers.

Sifry's post has nice charts and other details. (Via Joi Ito)