ICPSR Inter-University Consortium for Political and Social Research
The Inter-university Consortium for Political and Social Research (ICPSR), an international organization of colleges and universities which provide access to the world's largest archive of computerized social science data in the areas of political science, sociology, demography, economics, history, education, gerontology, criminal justice, public health, foreign policy, and law occurring in over 130 countries. Special archives on health and medical care, education, aging, criminal justice and substance abuse and mental health available. Most codebooks freely available. To download data, click on "downloads" link of study and sign in to ICPSR account.