Depth-first search, when you’re browsing the net,
Is a way to get sidetracked. You set
Out to read, so you think,
But you follow each link
And you’ve not found an end to it yet. — Jim In Roses
search : computer software used to search data (such as text or a database) for specified information; also a site on the World Wide Web that uses such software to locate key words in other sites — Webster See also OneLook
Search engine is a computer program to find answers to queries in a collection of information, which might be a library catalog or a database but is most commonly the World Wide Web. A Web search engine produces a list of “pages”—computer files listed on the Web—that contain the terms in a query. — Encyclopædia Britannica
The Google Graveyard: Remembering Three Dead Search Engines: Hey Google, Whatever Happened to Ask Jeeves, Dogpile and AltaVista? (J. Conditt, Engadget)
Search Engine History: From 1945 to Google Today (Aaron Wall, Search Engine History)
Here are links to pages about closely related subjects.
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