Fortune 1000 Companies Web Server

Recently, readers of the Web 2.0 blog learned that Web 2.0 is built on Linux . The method of counting and sampling the Web 2.0 servers caused quite a heated discussion in the comments to the topic, but there is no doubt that such a trend exists.
Today I would like to bring to your attention a study conducted by Port 80 Software .
The purpose of the study: to find out which web servers use Fortune 1000 companies for their Internet sites. A standard HTTP response header from the company's server is being studied. Based on it, the web server that served the request is determined.
The study is conducted annually; therefore, in addition to current indicators, trends in this issue can be assessed.
Last at the time of this writing, the study was conducted in August 2006. So, what did they do?

IIS Overall includes all versions of IIS (4.0, 5.0, 6.0), Apache - all versions of Apache . More detailed statistics on server versions are on the research page .
There you can follow the trends in this sample from 2003 to 2006.

The last thing worth noting: Port 80 Software earns its bread and butter extensions for IIS. What does this mean? You decide. I only dare to note that the result of any research depends largely on the task.