https://snowdrift.coop is an in-progress fundraising platform for public goods (...

https://snowdrift.coop is an in-progress fundraising platform for public goods (particularly free/libre/open software and cultural works) based specifically on addressing the cooperation needed to solve the snowdrift dilemma…

https://wiki.snowdrift.coop/about/snowdrift-dilemma has more specifically and https://wiki.snowdrift.coop/about covers the concepts for the whole project.