I don't know much about RSS feeds. Can you tell me what works for paysites? Any script in particular? What are users expecting as far feeds? What are the dos and don'ts? Any thread or websites with decent info?

It sounds like it's something that we must have on paysites as many webmasters are requesting paysites with RSS. Why?

Those may be dumb questions but i need to learn from webmasters and know what they want and what the traffic is looking for.