This brief summarizes our findings from a review of potential data sources to examine school-to-work transitions by youth with disabilities (Wittenburg and Stapleton, 2000). Our objective was to identify data sources for future school-to-work analyses that contain longitudinal information on youth with disabilities. We conclude that the following data sources are most promising based on our selection criteria: Survey of Income and Program Participation (SIPP); National Longitudinal Study of Adolescent Health (Add Health); Rehabilitation Services Administration (RSA) 911 Database and RSA’s Longitudinal Study of Vocational Rehabilitation (VR); state administrative data (multiple states); National Educational Longitudinal Study of 1988 (NELS:88); National Longitudinal Transition Study of Special Education Students (NLTS); National Longitudinal Transition Study of Special Education Students-2 (NLTS-2); and National Longitudinal Survey of Youth: 1997 (NLSY:97).