A common challenge faces development organisations, from the highest policy-making circles to local, grassroots organisations: how to work with other groups to build stronger partnerships and achieve consensus on goals? This article describes the Net-Map Toolbox, a new tool which builds and expands upon existing social-networking approaches. The article highlights the experience of using the Toolbox with the White Volta Basin Board in Ghana, a multi-stakeholder organisation responsible for overseeing local water resources.