These databases provide sociology-related statistics and data sets.
The NCJRS: National Criminal Justice Reference Service Abstracts Database indexes abstracts and full-text of journal articles, conference papers, books, and federal, state and local government reports in the field of criminology and criminal justice. The full-text materials are available in both HTML and PDF. 1970-present.
The Historical Statistics of the United States (HSUS) Millennial Edition Online provides data on social, behavioral, humanistic, and natural sciences including history, economics, government, finance, sociology, demography, education, law, natural resources, climate, religion, international migration, and trade - quantitative facts of American history. Data is available in HTML, PDF, and Excel.
Polling the Nations is an online database of public opinion polls containing the full text of 500,000+ questions and responses, from 14,000+ surveys, conducted from 1986 through the present in the United States and more than 100 other countries around the world. Limited to simultaneous users.