New and more complex partnerships linking donors, governments, community-based organizations, NGOs, business, and other intermediaries are emerging to address the governance natural resources in developing countries. Yet while these sustainability partnerships are able to draw on substantial resources and attract high expectations, we do not know whether and why they have delivered better outcomes. In this book, scholars from a range of disciplines analyze the governance of sustainability in three key natural resource sectors in Tanzania - forestry, wildlife and coastal resources - to establish what organizational structures work best. Using innovative methodological approaches, the contributors examine the emergence, structure and evolution of sustainability partnerships and the broader social networks in which they are embedded.