Promise Registry
The worlds original, official repository of promises, integrated with Facebook. This one has been on the back-burner for a while.
Links: promiseregistry.net
The first iteration of this site was built a loooong time ago. My original intention was to integrate with Facebook so promises could be shared with friends who could report if they'd been broken.
Commercialisation included purchasing certificates of the promises, endorsed by the world's official promise registry.
Of course, there were also ways of publishing that promises had been broken, just to keep things interesting.
I'll get back to this one, one day...I promise!