This guide describes, evaluates and explains how to locate information with search tools such as WebCrawler and HotBot that use automatic indexing software to efficiently and effectively discover, harvest and index Web pages. It directs the reader to the best tool for finding information needed without having to waste additional search time required by older methods. The manual provides: an introduction to search engines and chapters offering individual looks at the most widely known and used including WebCrawler, Lycos, Infoseek, OpenText, Altavista, Excite and HotBot; a general explanation of how all Web search tools create and search their indexes and databases; a discussion of the interface (the medium that allows the user to enter a query and then translates the query for a search engine); a history of automated Web searching, including an explanation of how robots discover resources on the Web and their limitations and depth-first versus breadth-first searching; and charts that summarize and compare search engine features enabling the reader to find the best one before beginning to search. Each description of a search engine contains information about who created it, the size of its database, the spiderbot or harvester it uses to retrieve information, how often it is updated, what is indexed, how this is determined and the step-by-step methods to find information with each. Additional chapters offer a comparison of the various search engines, a look at the economics of search engines and an annotated listing of meta-engines.