This page covers all varieties of practices specifically designed to work with conflict - including Arbitration. Compassionate Listening, Conflict Transformation, Mediation, Negotiation, Nonviolent Communication, Process Worldwork, Samoan Circle, Transformative Mediation . . .
It is a holding space for anything which addresses such approaches collectively, or the general insights and guidelines of the field as a whole.
A good resource for written materials, links and organizations in this field is Conflict Resolution Information's "Third Side Gateway" http://www.crinfo.org/thirdside/