http://www.macnn.com/articles/02/09/30/simon.1.0b2/
Simon 1.0b2 checks web/FTP sites for changes
updated 02:15 pm EDT, Mon September 30, 2002
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Simon 1.0b2 is a Mac OS X only application that checks web and FTP sites at a desired frequency and determines when they change or go down. The introductory version is now available as a free download.
