In order to accelerate neonatal mortality reduction , there is an urgent need to develop innovative solutions that are not only effective, but also more easily implementable and more readily scalable. An important component of this challenge, which has hitherto not been effectively measured and understood with respect to neonatal mortality, is the "embeddedness" of individuals within social networks. Hence, through a large-scale randomized controlled trial (RCT) in rural Honduras, we will deploy and assess social network targeting algorithms in order to maximize diffusion and adoption of the "Changing behaviors to improve neonatal, child, and maternal health using communication and social networks at the community level intervention (CBNH)". The CBNH intervention is a household-level intervention package that targets health behaviors surrounding neonatal and maternal health, and diarrhea and respiratory illness prevention and management implemented by the Inter-American Development Bank (IADB) and their partners.