I\'ve never done it myself, and I\'ve never subscribed to a feed, but it seems that I\'m going to have to create one, so I\'m wondering. The only way that seems apparent to me i
An RSS Feed is just an XML Document that conforms to a specific schema.
Have a look here
What language are you working in? You can easily script the xml output based on some content in your application. You don't need to explicitly save the file to the file system.
It can just be created on the fly