RSS feeds? How to set up?

I love your plugin!

However – the is not much documentation for setting up “Use feed keys”. And I have noticed that several people have asked the same question(s).

How are these “feed keys” generated? Where are they located? Can GoogleReader still be used? If so, how?

Also – when I reset the “Use feed keys” sometimes it doesn’t “take”. The feeds are still accessible.

Thanks in advance,
Shep