Web Usage Statistics and Demographics

Browsers and Servers

BrowserWatch - IWorld collection of material on browser usage, plug-ins, news and rumors.
The Netcraft Web Server Survey - monthly survey of Web Server software usage on Internet connected computers.
Web Compare - the web server comparison chart which compare features of web servers. There are also links to other sites which have web server benchmark studies.

CyberAtlas - CyberAtlas is the reference desk for Web marketers that provides readers with valuable statistics and Web marketing information.
Graphics and Visualization Usability Center WWW User Surveys - largest and oldest source of user demographic and growth statistics on the Web. It offers a variety of charts and numbers on Web growth.
Internet Society Internet connectivity charts and graphs - contains slides, tables, gifs that portray use and growth of the Internet.

Digital Business - tracks the growth of e-commerce as well as provides advice for businesses considering creating a presence on the Web.
The Internet Index - collection of interesting and odd facts and statistics about the Internet and related activities.
Network Wizards Internet Domain Survey - the Domain Survey attempts to discover every host on the Internet by doing a complete search of the Domain Name System.
Search Engine Watch - contains information on the number of documents on the Web, how they are indexed, how search engines work, comparisons of search engines, recent news about changes in search engine, website design with search engines in mind and much more.
Submit It! - Submit It! makes it easy to submit your URLs to a variety of WWW catalogs so people from around the world will be able to find your page.