Well actually you can as you could with the now defunct Feedmagic service that I evangelised 3 years ago as something that would be killed off by Google and the growing popularity of RSS sharing with Google Reader.
Google Reader still:-
- Doesn’t support simple HTTP authentication so you can use RSS for private stuff
- Doesn’t provide a mechanism so content producers can restrict sharing stuff
This is important… if you want to provide premium content from a membership site in a form that is most accessible for your subscribers.
It is even important for anyone using stock photos with a contract/license limited to a certain number of views for which you are personally liable. If you allow people to share blog posts that contain stock photos, it is a significant financial risk… but I am not a lawyer.
But segmentation? Not unless every subscriber had a unique feed… Feed Magic had it

