W3C-compliant : Following HTML standards set by the World Wide Web Consortium (W3C).

Web analytics: The study of visitor activity on an individual Web site.

Web history : The complete records of a user’s previous Google searches and the Web sites they’ve visited or bookmarked.

Web metrics : The measurement of what's happening on the Internet, such as the number and types of people online; the number of broadband versus dial-up connections, advertisers, and advertisements (shapes, sizes, level of annoyance); and all things related to the Internet as a whole.

Web ring : A collection of Web sites from around the Internet that join together through interlinking in a circular structure.

Web server : The combination of software and hardware that runs a Web site. A Web server receives each user request and “serves” back the requested pages to the user’s browser.

white list : A list of Web sites or agents (such as spiders) that are approved to enter a Web site.

widget : A piece of HTML code that can be embedded in a Web page and that a user can interact with.

wiki : A type of information site that contains all user-generated content, such as Wikipedia.

World Wide Web Consortium (W3C) : An international consortium where member organizations, a full-time staff, and the public work together to develop Web standards.