I've been involved with the Ripple project and I think it would make a great addition to DonationCoder. You can read the basics at the online payment portal (https://ripplepay.com/
), and you can sign up for an account for free.
Ripple lets you use personal credit to make donations or other payments among each other. It can work with traditional currencies as well as other value units such as DonationCredits.
I believe that adding Ripple to DonationCoder would make it more fun and useful, and you can also expand your use of Ripple to other areas.
Give it a whirl, you can connect to anybody you already know, and if you want to test out a new connection or if you have any questions, you can contact me at [email redacted to avoid spam spiders; please send personal message via forum to contact or visit web page]