Updated blog numbers from David Sifry

Posted by: Stephen Baker on January 18

I talked to Technorati founder David Sifry to update the ‘05 blogging numbers. Back when we wrote the cover story, there were some 9 million blogs, with about 40 thousand new ones popping up each day. Now, says Sifry, Technorati indexes 112 million blogs, with 120 thousand new ones appearing each day. And that’s not including spam blogs. They were barely on the horizon in spring of ‘05, and now they account for—get this—well over 99% of all the pings and updates pouring into Technorati’s servers.

Sifry’s take: “All healthy ecosystems have parasites.”

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Reader Comments

Mike Keliher

January 18, 2008 02:56 PM

When discussing the impact of newspapers, magazines, radio stations, cell phones, laptops, trade shows, etc. on business, does it matter how many of each of those things there are? We know there are piles and piles and piles of blog, and it's not going to stop growing any time soon.

So it's an interesting little tidbit, but does it matter?

Kevin Burton

January 18, 2008 03:05 PM

These numbers are a poor way to interpret these results. There *may* be 112M million total blogs but there are only a few million that post in a 60 day time period.

Our numbers show that only 2-4M blogs within a 60 day period have posted at least once post:

http://feedblog.org/2006/08/08/technoratis-numbers-are-wrong

Disclosure... I'm the CEO:

http://spinn3r.com

David Sifry

January 18, 2008 04:51 PM

To answer Kevin's question, about 11% of those blogs have posted in the last 60 days, making that about 13 million blogs, much more than Kevin's 2-4M estimate.

Dave

Joyce McKee

January 20, 2008 01:23 PM

It is good to know accurate numbers. I have always wondered about the number of abandoned blogs and this hints at the huge number.

dave

January 21, 2008 06:08 PM

Having read some, I'd say that 99% of said blogs are useless tripe, at best.

Heather Green

January 22, 2008 05:41 PM

Kevin is right. The live data is what counts. What I would like to see is Dave's 0data for the last 90 days. That's because the last data he provided us with information, in March 2007, it turned out that 15.5 million blogs were active in the last 90 days, or 21% of all blogs. I'll get Steve to email Dave.

http://www.businessweek.com/the_thread/blogspotting/archives/2007/04/blogging_growth.html

ManWare

January 26, 2008 04:26 PM

Ahh... excuse me... You have note about logo of Wikia Search?. It's looks like a fart.

about logo wikia

Maxon Pugovsky

February 4, 2008 04:00 AM

The T'rati index is not growing for a long time. The number 111-112 mln blogs is on their About page (http://technorati.com/about/) since September 2007.

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In Blogspotting Senior Writer Stephen Baker and Associate Editor Heather Green take a look at how cutting-edge technologies are changing business and society. Whether its blogs or wikis, data crunching or data targeting, technology’s advances are reshaping the world that we live in.

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