I have been developing a website for a while now gaining returning visitors that like my content. I had been planning for a while now to make a membership section that members will have to pay to sign up. Basically I am just going to be posting a premium more in depth version of the content that I am already providing. I would like to have it set up so that I get paid monthly via paypal and have it be integrated into my current blog without having to change much around. Does anyone know of a wordpress plugin that you can do this with?