Search Engine

"Search engine" redirects here. For other uses, see Search engine (disambiguation).

A Web search engine is a

search engine designed to search for information on the World

Wide Web. Information may consist of web pages, images, information and other types

of files. Some search engines also mine data available in newsbooks, databases, or open

directories. Unlike Web directories, which are maintained by human editors, search

engines operate algorithmically or are a mixture of algorithmic and human input.