Access to archives of social science data, specializing in data from surveys of public opinion. Roper Center data range from the 1930s, when survey research was in its infancy, to the present. Most of the data are from the United States, but over 50 nations are represented.
Provides a historical record of baseball and provide educational, historical, and research information about baseball. Several areas of the sport including baseball records, statistics, and the business of baseball are covered on the site.