I place VERY tempered confidence in statistics and have never been a huge fan of the Netcraft numbers as I think they are often used to make arguments that their predicate data does not support. 

Still, this is interesting.

NetCraft web server survey says …..

Microsoft continues to increase its web server market share, adding 2.6 million sites this month as Apache loses 991K hostnames.

Overallc

http://news.netcraft.com/archives/2007/08/06/august_2007_web_server_survey.html