Value or supply networks that interconnect diverse producers and customers around the world are a defining feature of the globalized economy. And, they are a major cause of the most pressing social and environmental imbalances in the world today. In response to these major problems, there are today an increasing number of pioneering efforts at cross-sector collaboration to try to better understand, manage and lead global supply systems.  But making such collaborative efforts effective is extremely difficult. It takes a willingness to talk with not just at one another. It takes people coming from very different backgrounds to learn how to see larger systems, and to understand the forces driving them and the alternative policies and practices needed for a sustainable future.  To advance collective capability in building partnerships for healthy value chains, WWF, SoL (Society for Org Learning), and several corporations and NGOs are forming a sustainable value chains learning community. The basic aim is to support leadership and develop robust methodologies that can be shared widely.