COMM 107 Chapter Notes - Chapter 4: United States Census Bureau, Internet Public Library, Usa.Gov
30 Oct 2017
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Document Summary
Search engine: an internet tool that computer generates indexes of web pages that match, or link with, keywords typed in a search window. Directory: an internet tool through which people edit indexes of web pages that match, or link with, keywords typed in a search window. The important difference between a search engine and a directory is that a directory has a person trained in library or information sciences choosing prospective sites based on the quality of the site. Search engines are more likely than directories to provide overly broad, often irrelevant sites. Metasearch engines: sends your keyword request to several search engines at once. They work best when your request is a relatively obscure one. When you want to narrow your search to about a dozen sites. Virtual libraries: search tool that combines internet technology and standard library techniques for cataloging and appraising information. Usually associated with colleges, universities, or organizations with strong reputations in information dissemination.
