Wais- Wide area information servers
A set of full-text databases containing information on hundreds of topics. When using Wais, you can use natural-language queries such as "I want information on Jerusalem". (See server.)

WAN- Wide Area Network
A large computer network made up of hundreds of computers spread out across a large geographical area, usually connected by telephone lines or satellite.

WebCrawler
A keyword-based search engine. (See search engine.)

Web page
A page saved on one of the Internet's Web sites that stores textual information, sounds, video, animation, etc. on a specific topic. (See WWW, Web site.)

Web site
A computer that stores Web pages and lets Internet users open, see, and download the information on the pages as desired. 
(See Web page, WWW.)

Web site address
The address of a Web site, consisting of the address of the site's server and its location on it.

White pages
A tool that lets you search for an E-Mail address according to name, country, etc.  One of the most well-known server is Four11. (See search engine, E-Mail.)

WWW- World Wide Web
A system which stores and arranges information in Web page format. (See browser, Web site, Web page.)