This report contains case studies of five interagency collaborations that represent a variety of approaches to organizing and implementing school-community linkages. Within demographically different communities, the collaborations described ranged from localized efforts that concentrate social services at a single school site to county-wide collaboratives that coordinate and manage services across several agencies. Each case study describes the organization of the collaborative, the services provided, and its critical components. Also included is an analysis of barriers to collaboration, the collaborations' success, and challenges they face. (Author)