This book presents the results of an extended study of service integration efforts in Colorado, Florida, Indiana, and Oregon, highlighting the nature of existing service integration and the potential of systemic reform efforts. The first part of the book examines the range and complexity of current service integration efforts, offers a definition of the term, and presents the study's rationale and purpose, its conceptual model, and an overview of service integration in the four states chosen for analysis. Part 2 examines the events and conditions outside specific service integration efforts that may influence their creation, development, and effectiveness. Part 3 examines the implementation of service integration efforts, investigating and discussing in detail the following six factors: (1) the individual or multiple fields to be integrated; (2) the most effective level (state or local) at which service integration can be accomplished; (3) different approaches to service integration; (4) financing; (5) leadership; and (6) private sector, consumer, and media involvement. Part 4 examines the results of service integration efforts focusing on systemic accomplishment and human outcomes. Part 5 synthesizes and integrates the results and discusses the implications for future service integration efforts. An appendix contains a detailed examination of the service integration efforts for each of the states under investigations and contacts in the four states. Contains 60 references. (AA)