It'll be launching in literally a week or two... it's very simple to integrate and comes with it's own Wordpress plugin (and instructions to integrate your own CMS).
What advice do people have about this per article payment space; I have a load of ideas I want to try so maybe while Google concentrate on ads I'll be able to look at various optional payment models.
Initially I want to just charge a flat 5% + whatever Stripe fees you use to top up your wallet, but I'm concerned I'll get a lot of noise/scaling issues if I don't charge a monthly fee? Thoughts?