Welcome to using Search Engines on the Internet InfoGuide where you will learn the best ways to find and evaluate information on the Web.
Search Engines: The Big Four:
Although there are many search engines, most are directly owned by or based on the indexing of the four major search engines listed below. Each of these search engines are full featured and would be good places to start a research project on the web.
Directory or Subject Guide Search Engines:
This type of search engine differs from the ones listed above in that instead of a computer program analyzing a site and giving you what it thinks you want, these search engines are based on humans evaluating and categorizing websites. Although you will usually have a smaller result list for your search, the sites found are usually high quality.
|Internet Public Library||www.ipl.org|
|The Open Directory Project||www.dmoz.org|
Question / Answer Search Engines:
Some search engines cut right to the chase and instead of giving you a list of sites, they give you an answer to a question. Although Wikipedia isn’t a search engine in the traditional sense, it’s comprehensive coverage makes it equivalent. However, please note that although comprehensive, Wikipedia is not an authoritative source since all entries are anonymous. It can be used for general reference, but not as a source for a college level research project.
Searching the Deep Web:
Even though traditional search engines index millions of sites, this is only a small fraction of the total web. Sometimes called the “Deep Web” or “Invisible Web” these sites cannot be seen by the indexing tools of traditional search engines and you need special tools to search them.
For more search engines, visit http://www.thesearchenginelist.com/.