its one of those things that swallows the fly before the bird catches them
More seriously,Spiders are a form of search engine, and "spidering" a Web site allows you to pull information from other Web sites into your Web site. You tell the spider what keywords to look for, and it searches for them on the Internet and pulls the related information into your site, eliminating the need to cut and paste. The type of spider software you purchase depends on what you want the spider to find for you. There are email, fax and data spiders
HTH
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