Blogosphere Doubles Every 5.5 Months

Dave (head guy at Technorati) is back with his State of the Sphere entries. Snippets:
Blogosphere has grown in size 60 times compared to 3 years ago.
Half of new bloggers are posting 3 months later.
10% of blogs update weekly
9% of new blogs are spam – 60% of pings are spammy (and blocked by Technorati)
1.2 million new posts every day
Blogs are changing the trade magazine industry with blogs on gadgets, etc.