To assess the Reclaiming Futures initiative's impact on agency relationships, social network questions were included in a series of expert informant surveys conducted bi-annually in each Reclaiming Futures community. Network analysis is a tool for investigating the complexity and strength of relationships and social interaction among individuals, groups, organizations, or states. The network analysis of Reclaiming Futures examined patterns of interaction among key agencies in eight communities working to implement system reform strategies and to improve services for drug-involved youthful offenders. Using measures such as network density, cohesion, and proximity, the analysis suggests that overall network strength increased in Reclaiming Futures communities.