Institute for Social Research at the University of Michigan
ICPSR (Inter-university Consortium for Political and Social Research) is an international consortium of over 750 academic and research institutions. It provides leadership and training for the social science research community. It maintains a data archive of more than 250,000 files of research in the social and behavioral sciences. It hosts 21 specialized collections of data in education, aging, criminal justice, substance abuse, terrorism, and other fields.