A set of mathematical rules that search engines use to rank the search results once a user has entered in a keyword (or keywords) when performing an online search. In other words, it is a method of ranking the Web site listings contained within its index.
To protect themselves from competitors (and to avoid telling Webmasters and SEO specialists how to take advantage of their technology so they do not spam the index) search engine companies generally do not divulge how their own algorithms work. As a result of this secrecy, enormous amounts of information have been written online in an attempt to figure out, for instance, Google's algorithms.
NetLingo Classification: Net Technology