List of search engines
This is a list of search engines, including web search engines, selection-based search engines, metasearch engines, desktop search tools, and web portals and vertical market websites that have a search facility for online databases. For a list of search engine software, see List of enterprise search vendors.
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General:
Academic materials only:
Desktop search engines listed on a light purple background are no longer in active development.
Search engines dedicated to a specific kind of information
These search engines work across the .
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