Solutions to problems that are agreed upon voluntarily by the individuals involved

Articles

Why Those Who Value Liberty Should Rejoice: Elinor Ostrom's Nobel Prize, by Peter J. Boettke, The Freeman, Dec 2009
Discusses Elinor Ostrom's work and viewpoints
"The foundation of the social order of a free people is self-governance, not governmental authority and centralized power. Decentralized decision making that drills deep into the local social dilemmas real people face, that mobilizes incentives within a local rule structure, and that utilizes local knowledge is how the process of institutional development assures that self-governance is effective governance, enabling fallible human beings to reasonably manage scarce resources and the relationships among themselves."

Books

Community Technology
    by Karl Hess, Carol Moore (Introduction), 1979
Relates a five-year experiment in the Adam-Morgan neighborhood of Washington, D.C. where Hess and many others participated to make it as self-sufficient as possible