What's the most simple way to accept monthly subscription fees?
mootothemax: If you want quick, easy and cheap, go with PayPal. They have a button generator tool that takes the hassle out of submitting html forms to them. There are plenty of libraries out there that will listen for their IPNs (instant payment notifications) so that you can update the user's subscription record on your site. And there are no start up costs, win! ;)That said, personally I'd start with PayPal, see if anyone gives you any money, and the moment users start paying switch to a proper merchant account and CC processor ;)