- ICPSR Data Archive This link opens in a new windowInter-University Consortium for Political and Social Research provides data, documentation and links to related literature, which can be searched and downloaded by member institutions.
- IPUMSCensus and survey data from around the world integrated across time and space.
- IPUMS InternationalCensus and survey data from around the world integrated across time and space.
- Michigan Survey of ConsumersThe Surveys of Consumers are conducted by the Survey Research Center at the University of Michigan. Founded in 1946
