The Integrated Public Use Microdata Series (IPUMS), (
site) based at the University of Minnesota, is a group of projects for working with census data. One of these, IPUMS-International, "is a project dedicated to collecting and distributing census data from around the world. Its goals are to:
- Collect and preserve data and documentation
- Harmonize data
- Disseminate the data absolutely free!"
- Successful at masking personal information