Technorati: Blogosphere doubles every 5.5 months

From Technorati's David Sifry:

It's been 4 months since last October's State of the Blogosphere report, so it's time to update the numbers! For historical perspective, you can see earlier State of the Blogosphere reports from July 2005, from March 2005, and from October 2004.

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