The Blogging Iceberg makes for interesting reading.

Blogs are updated much less often than generally thought. Active blogs were updated on average every 14 days. Only 106,579 of the hosted blogs were updated on average at least once a week. Fewer than 50,000 were updated daily. Wow, as few as that? Perhaps ten million was an overbid. ;-)

Also, it turns out that I'm very much in the minority demographically speaking - I'm male (44%) and over thirty (7.6%).

The survey upon which this is based seems only to include hosted blogs. I'm sure that the vast majority of blogs are hosted, but I would imagine that techie blogs would be far more likely to do their own hosting. Tech bloggers are overwhelmingly male (in number, if not in temperament ;-).

Via Rebecca Blood.