The Population Council confronts critical health and development issues-from stopping the spread of HIV to improving reproductive health and ensuring that young people lead full and productive lives. Through biomedical, social science, and public health research in 50 countries, we work with our partners to deliver solutions that lead to more effective policies, programs, and technologies that improve lives around the world. Established in 1952 and headquartered in New York, the Council is a nongovernmental, nonprofit organization governed by an international board of trustees. Partners BALIKA (Bangladeshi Association for Life Skills, Income, and Knowledge for Adolescents) is a unique collaboration between communities in rural Bangladesh, international NGOs, and the Dutch government. The Population Council (www.popcouncil.org) confronts critical health and development issues-from stopping the spread of HIV to improving reproductive health and ensuring that young people lead full and productive lives. Through biomedical, social science, and public health research in 50 countries, the Council works with partners to deliver solutions that lead to more effective policies, programs, and technologies that improve lives around the world. The Population Council conducts the world's largest body of research on programs to improve the lives of adolescent girls in the developing world. Population Services and Training Center (PSTC) (http://infosysbd.com/demo/pstc_final/ index.php/our-projects) is a national nongovernmental and not-for-profit organization working for the improvement of life status of poor and socially disadvantaged people by undertaking various programs and projects for the last 34 years in Bangladesh at the grassroots level. PSTC has extensive experience in the areas of health service delivery; child, adolescent and youth development; governance and rights; and poverty reduction and livelihoods. Centre for International Development Issues Nijmegen (CIDIN) (www.ru.nl/cidin) is a Netherlands-based interdisciplinary academic research institute that focuses on inequality, poverty, development, and empowerment. It is embedded in the Faculty of Social Sciences of Radboud University Nijmegen. In addition to teaching programs, the organization conducts research on a range of issues including migration, water management, gender, and sexual reproductive health and rights (SRHR). The PopDev Project: Impact of Reproductive Health Services in sub-Saharan Africa and the On Track with Gender initiative are collaborations with the Dutch Ministry of Foreign Affairs and Dutch development NGOs. CIDIN has built up considerable expertise on impact evaluation, covering development interventions implemented by both governmental and nongovernmental actors. mPower Social Enterprises (www.mpower-social.com) is a global social enterprise, headquartered in Bangladesh, harnessing the power of information and leveraging Information and Communication Technology (ICT) (mobile technologies in particular) to revolutionize the impact of deve...