Is there a way to generate alert for certain keywords on a certain webpage?
I want to do two things, both are for totally different purposes:
1. I want to generate alerts based on keywords and be sent to my email based on the content on craigslist.org. Earlier there were subscriptions, which has been suspended. Is there a way.
2. Is there a way to keep a watch on a certain webpage, and get an email alert whenever the content on the webpage changes. Say, I am watching the course webpage of a Professor, and I want to get an alert whenever he changes that (puts notes etc.) then I want to get an alert.
Technically, it may require a cron-job on some server which also has the mail-server to send alerts. And some sort of comparison program based on threshold would do.
Since this is such a common need, I am wondering if someone has already done it.
Thanks.




