Dave Sifry lays out the statistics once again, as usual supported by some interesting charts, & this time using boldface type to offset the critical insights. Here's the summary:

• Technorati is now tracking over 50 Million Blogs.
• The Blogosphere is over 100 times bigger than it was just 3 years ago.
• Today, the blogosphere is doubling in size every 200 days, or about once every 6 and a half months.
• From January 2004 until July 2006, the number of blogs that Technorati tracks has continued to double every 5-7 months.
• About 175,000 new weblogs were created each day, which means that on average, there are more than 2 blogs created each second of each day.
• About 8% of new blogs get past Technorati's filters, even if it is only for a few hours or days.
• About 70% of the pings Technorati receives are from known spam sources, but we drop them before we have to send out a spider to go and index the splog.
• Total posting volume of the blogosphere continues to rise, showing about 1.6 Million postings per day, or about 18.6 posts per second.
• This is about double the volume of about a year ago.
• The most prevalent times for English-language posting is between the hours of 10AM and 2PM Pacific time, with an additional spike at around 5PM Pacific time

Several interesting things here... including of course the continuing rate of growth, and the significant percentage of pings that are spam. Read the whole thing & groove on the charts!

Update: Kevin Burton checks the math & comes to some interesting conclusions re: index size and active blogs etc.

Filed In: technorati search blogs blogging,