"Not long ago, TechNewsWorld published a story describing
divergent conclusions reached by two recent studies of Web server
market share.
"One, the latest in an ongoing series conducted by UK-based
Netcraft, cast its net wide and surveyed a sample of more than 45
million Web sites. It concluded that open-source Apache controls
some 67 percent of that market, with Microsoft's Internet
Information Services (IIS) server a distant second at 20
percent.
"In San Diego, California, Port80 Software begged to differ.
According to Port80, 'Netcraft's focus on sampling as many sites as
possible introduces a systematic overrepresentation of servers that
are used to host high numbers of sites, including parked domains
(hostnames pointed to a physical server but not actively used as
Web sites) and sites of extremely variable quality and
traffic...'"
