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More and more development projects are using group or community approaches to disseminate technology and resources. It is believed that using such an approach will provide a safety net as well as social control to ensure the sustainability of the technology and resource. However, little is known of the exact process and social networks that are mobilized and used in using such an approach. Particular attention is devoted in the paper to gender differences and the concept of social capital for analyzing social networks. Cases and the analysis were drawn from Heifer Project International's efforts to disseminate improved goat breeds through a village group process in Tanzania. An examination of these case studies shows that internal processes are crucial in understanding technology transfer. In all groups, a person's social capital did determine whether a member got a goat, and a person's ability to access and manage information also played an important role. Of all the groups, the most successful and sustainable had a history of interaction and were involved within several projects in which the members met each other in different arenas.

One Health concepts and ideas are some of the oldest in the health discipline, yet they have not become main stream. Recent discussions of the need for One Health approaches require some reflection on how to present a case for greater investments. The paper approaches this problem from the perspective of the control and management of resources for health in general. It poses the following questions, (1) where do we need extra resources for One Health, (2) where can we save resources through a One Health approach and (3) who has control of the resources that do exist for One Health? In answering these questions three broad areas are explored, (1) The management and resources allocated for diseases, (2) The isolation of parts of the society that require human and animal health services and (3) The use of resources and skills that are easily transferable between human and animal health.The paper concludes that One Health approaches are applicable in many scenarios. However, the costs of getting people from different disciplines to work together in order to achieve a true One Health approach can be large. To generate tangible benefits requires careful management of specialist skills, knowledge and equipment, which can only be achieved by a greater openness of the human and animal health disciplines. Without this openness, policy makers will continue to doubt the real value of One Health. In summary the future success of One Health is about people working in the research, education and provision of health systems around the world embracing and managing change more effectively.