Cooperative Association for Internet Data Analysis - CAIDA collects, monitors, analyzes, and visualizes several forms of Internet traffic data concerning network topology, workload characterization, performance, routing, and multicast behavior.
ICT statistics - Statistics extracted from the ITU World Telecommunication Indicators Database, concerning the spread of information and communication technologies in over 200 economies worldwide
Internet Demographics Directory - Directory of Internet demographics, user surveys, backbone/ISP reviews and Internet topology. Entries categorised and ranked.
Internet Domain Survey - Attempts to discover every host on the Internet by doing a complete search of the Domain Name System. Statistics available for free and commercially.
Netcraft Web Server Survey - A monthly updated survey of web server software usage on computers connected to the Internet. Also surveys most popular websites, and top level domains.
Netvalley - IT history, reports, statistics and ranks.
Nielsen//NetRatings - Information on Website usage, internet access, and advertising data.
Security Space - Monthly published research reports covering issues like web server market share, popularity of web sites, and web authoring tools.
StatMetrix - Subscription service that provides monthly research reports and newsletters for global web activity, search engine use, web browser market share, operating systems, connection speeds, and mobile web trends.
WebHosting.Info - Provides statistics and research data about the Web services industry. Tracks over 35,000 Web hosting companies worldwide.
Zooknic Internet Geography Project - Data, maps and analysis on the geographic distribution of Internet domain names by city, region, state, and country.
NEC Study - Predicts competition and diversity on the web. (April 15, 2002)
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