The Libraries have recently added the Social Explorer database. The database includes the entire US Decennial Census history from 1790 to 2010, all annual updates from the American Community Survey, the Religious Congregations and Membership Study from 1980 to 2000, and selected election and carbon emissions data. Users can customize, save, print, export and email maps and reports. The site is updated three times annually. Includes only state and county data through 1930. Includes tracts 1940 to present and block groups 1980 to present. Does not include STF 1 block level data.