I am an owner of a new and upcoming forum and I am wanting to start selling digital newsletters to my members for a monthly reaccuring fee. I have seen it done before where people sign up using their paypal accounts and are charged say $5 a month for a good informational newsletter regarding the niche of the site. I am not sure where to get started or what services I would need to use to do this type of thing. Can anyone explain how easy it is to do and where to start? Thanks