Consumers
Determine all potential users of  information that will be generated by your site and inform/engage/involve them in the startup process.  These might include:
Government:
Especially Ministry of Health, Ministry of Education, Bureau of Statistics or Census, Prime Ministers' or President's Office of Poverty Alleviation.
Multi- and Bilateral Organizations:
Especially WHO, UNICEF, World Bank, UNDP, UNFPA and bilaterals supporting the health sector and poverty alleviation.
Academia:
Especially local University faculties of medicine, public health, demography, epidemiology and social sciences.
NGOs:
Especially those dedicated to health, nutrition, family planning, welfare and poverty alleviation.
Research Community:
Especially the National Institute for Health Research, any Commission for Science and Technology, any research NGOs or other research agencies.