This site contains a reasonable amount of useful background infromation on searching including many links to a variety of search tools. http://www.searchtools.com/index.html - Notice the link to Perl based solutions

One of the more exotic search technologies is employed by Google and is known as PigeonRank. It employs a distributed multi-agent system to rank search results. The agents are widely available but do need to be trained!!

inman

In reply to Re: Searches by inman
in thread Searches by sulfericacid

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