Just come across information about a collaborative competition being co-ordinated by 'Changemakers', who say of themselves:
Changemakers is an initiative of Ashoka: Innovators for the Public that focuses on the rapidly growing world of social innovation. It provides solutions and resources needed to help everyone become a changemaker and presents compelling stories that explore the fundamental principles of successful social innovation around the world.
The competition is entitled : Entrepreneuring Peace On-the-ground innovations for managing conflict
A matrix of peace building has been set up as the entries (158 to date) have been coming in and voting for three prize winners will be possible online from 31 January to 14 February. The matrix itself makes interesting reading, with much food for thought about how peace can be built.