Overview

On the Internet, a search engine is a coordinated set of programs that includes:

• A spider (also called a "crawler" or a "bot") that goes to every page or representative pages on every Web site that wants to be searchable and reads it, using hypertext links on each page to discover and read a site's other pages
• A program that creates a huge index (sometimes called a "catalog") from the pages that have been read
• A program that receives your search request, compares it to the entries in the index, and returns results to you

An alternative to using a search engine is to explore a structured directory of topics. Yahoo, which also lets you use its search engine, is the most widely-used directory on the Web. A number of Web portal sites offer both the search engine and directory approaches to finding information.

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• Search Engine Features

• Search Engines Lagging Behind Expansion of Internet

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• Searching the Web—a Kentucky Virtual Library Tutorial

• Guide To Web Search Engines

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• What Do You Do With Your Search Results

• How Do You Use Your Search Results

Try these search engines. Remember, they all have pros and cons. Use the one(s) you get used to.

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