Web Pages – Internet documents, or pages on a Web Site, formatted in a language called HTML, which can include text, graphics, animation, audio and video files.

Web Server – A web server is a computer permanently connected to the Internet that serves information, files, Web pages, and other services to any client (e.g., computer with browser) that logs onto it and requests them.

Web Site – Location for an organization’s presence on the World Wide Web. Usually it consists of a collection of Web Pages.

Weighted Average – A statistical quantity calculated by multiplying each value in a group by an assigned weight, summing these products and dividing the total by the sum of the weights .

Weighting – A weight is a numerical value assigned to each unit of the sample. Weighting is the process of multiplying the unit data by the unit weight and then summing these weighted values across all units of the sample.

Window – The period during which a network or other distributor has contractual rights to show or sell a program.

Wired Cable – The household is wired for cable, e.g. receives cable via a wire to the home from a cable headend located in the community. If a home is “wired” to receive cable channels on any TV set in the home, then the home is considered a “wired” cable home.

WWW – World Wide Web.