Search Engines

A search program and data display from Internet sites. The program scans accessible Internet sites, filters extraneous data, and retrieves relevant information (Information Retrieval).

Complex algorithms operate the search engine, and sort according to a variety of criteria.

There are thousands of search engines in the world—some are general and some specialize in various fields and/or countries. The most significant search engines in the world are Google, Yahoo!, and MSN.