While the growth rate of new blog creation previously showed a doubling of the numbers every six months or so, Technorati's Dave Sifry says that doubling from 35 million blogs to over 70 million blogs took roughly 320 days—just under a year. "This shouldn't be surprising, as we're dealing with the law of large numbers—it takes a lot more growth to double from 35 million blogs to 70 million (which took about 320 days) than when it doubled from 5 million to 10 million blogs (which took about 180 days)," he writes.About 120,000 new blogs are created every day.
Technorati data also indicates people are blogging less and less. A year ago the company recorded 1.3 million blog posts a day, in March of this year it was about 1.5 million a day. That's a small increase but not much considering that the amount of blogs has more than doubled in a year time.