I am orphaning websec, here is the description: Web Secretary is a web page monitoring software. However, it goes beyond the normal functionalities offered by such software. Not only does it detect changes based on content analysis (instead of date/time stamp or simple textual comparison), it will email the changed page to you WITH THE NEW CONTENT HIGHLIGHTED!
It is a small but very useful package, which is unmaintained upstream. I have kept it inside debian, because users still request for small changes now and then. You will need a bit of perl knowledge to maintain it. Joop
