Ridiculously easy billing and recurring subscriptions for non-developers- and you don't need a merchant account or gateway.
In just a few minutes:
1) Define your product or subscription plan to create a "Buy Now" link.
2) Paste the link into a website or share it anywhere across your social graph.
3) Your single checkout page matches your branding and website.
4) People spread the word about your products and earn commissions for referrals.