Check out Perlfect Search. It's easy to use, fairly customizable and will save you a lot of development time. I had my first search engine up and running in just a few minutes with it. It's also available under the GNU license.

Perlfect isn't perfect, but it does allow you to either generate a search through static text files or spider a site to generate a search database for a dynamic site. It's very handy that way.

Cheers,
Ovid

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