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Search Engines and How They Work
Web search engines do their job by storing information about many web pages, which they then retrieve from the html itself. These pages are retrieved by a Web crawler (sometimes also known as a spider) — an automated Web browser which follows every link on the site. The contents of each page are then examined [...]
Popular Video Search Engines
AltaVista Video Search had one of the first video search engines that offered easy accessible use. Is found on a direct link called “Video” off the main page above the text block.(Since 2 February 2009 this feature has not been available from Altavista.com) Blinkx was launched in 2004 and uses voice recognition and visual examination [...]

