Akvo (from the Esperanto word meaning “water”) is a non-profit foundation committed to bringing low-cost, sustainable water and sanitation technology and approaches to local communities. It's sort of like Open Architecture Network but with a more focused infrastructural concern.
In the same vein as OAN's open source ethos, Akvo maintains a wiki, naturally called Akvowiki. It's goal is “to improve water and sanitation projects through knowledge exchange on smart and affordable technical solutions and effective approaches.”
Additionally, Akvo helps projects get funding through partner organizations and through crowdfunding.
Go fund a project now!