ICPSR offers more than 500,000 digital files containing social science research data. Disciplines represented include political science, sociology, demography, economics, history, gerontology, criminal justice, public health, foreign policy, terrorism, health and medical care, early education, education, racial and ethnic minorities, psychology, law, substance abuse and mental health, and more.
IPUMS provides census and survey data from around the world integrated across time and space. IPUMS integration and documentation makes it easy to study change, conduct comparative research, merge information across data types, and analyze individuals within family and community contexts. Data and services available free of charge.
Indexes & abstracts the statistical content of selected U. S. & state government publications, business & association publications & intergovernmental publications. Abstracts may contain a link to the full- text of the table and/or a link to the agency's website where the full-text of the publication may be viewed & downloaded.