Web Secretary is a user-friendly (see screen shot) Web page monitoring software. It not only detects changes based on content analysis (instead of date/time stamp or simple textual comparison), but also emails the changed page to you with the content highlighted. Web Secretary is written in Perl. It should be able to run on all Unix systems with the Perl Interpreter (and LWP module) installed. At present, it has only been tested on Linux. Web Secretary is covered under the open source, free GNU GPL.