Recently I found very useful service Page2RSS, which enables RSS subscriptions to the pages without RSS feature.
The service is very simple – there is only need to paste the Web page URL, and on the next service’s page there is the RSS url which is traceable with RSS readers.
The result on the reader shows is there any changes. Sometimes this does not work very well because sites use flash or use visitor’s counters, current time etc.
Cool. I like Feedity (http://www.feedity.com) better.