a system of logical thought developed by the 19th-century mathematician George Boole. On the Web, Boolean searches can be used to develop search engine queries. Boolean searches can increase the accuracy of your results because they specify relationships between keywords or phrases. The most commonly used Boolean operators are: AND, OR, and NOT.

The three most commonly used Boolean operators are: AND, OR, and NOT. In Boolean searching, an "AND" operator between two words (for example, "apples AND oranges") tells the search engine to find documents that contain both of these words. An "OR" operator (for example, "pear OR apple") tells the search engin [..]

(v.) the act of saving a Web document for future access; typically, this is a function of your Web browser. (n.) a Web document that you save using your Web browser

A collection of information organized in such a way that a computer program can quickly retrieve specific pieces of data.

A directory, also known as a subject directory, refers to any collection of Web sites organized into such categories as health, history, sports, arts and entertainment, and travel. (Each directory has its own unique categories and links.)

the part of the URL that identifies and calls up the specific computer on the Web that stores the information you requested

short for electronic mail; mail that is instantaneously sent by your computer to anyone in the world with an e-mail account

the three-letter suffix that is part of a URL. For example, in the URL www.archives.gov, the extension is .gov. Other commonly used extensions include .com, .edu, and .org.

the main page of a Web site. The home page typically provides a table of contents or a site map for the rest of the site.

a nonlinear system of writing that allows users to access text and multimedia features through multiple pathways