During the 1990s, an increasing number of states have become interested in social indicators as basic tools of governance. Many states have been working aggressively to develop programs and initiatives that make systematic use of social indicators, and to develop the underlying data system to measure and track such indicators. This report reviews developments in six states: California, Florida, Massachusetts, Minnesota, Oregon, and Vermont. The report focuses on the underlying data systems and on the efforts to make the data accessible to a variety of users. Throughout, the focus is on social indicators of child and family well-being. Each state review includes: (1) a description of major programs which use social indicator data; (2) descriptions of the survey and administrative data sources used to measure and track social indicators; (3) an assessment of the strengths and weaknesses of the overall data system; (4) a list of existing sites and major publications reporting social indicator data; (5) a description of the training programs to educate users and staff in both the collection and proper use of social indicator data; and (6) a brief description of current challenges and future plans regarding the further development and use of social indicator data in the state. (SD)