The Roper Center for Public Opinion Research is a non-profit organization that maintains a data archive (1930s to the present) of public opinion polls conducted or sponsored by major polling, media, and public policy organizations such as Gallup, Roper, ABC, CBS, CNN, NBC, Pew Research Centers, New York Times, USA Today and Wall Street Journal. The iPOLL databank offers access to nearly half a million survey questions and answers asked in the US by more than 150 survey organizations.

When To Use: 

User when you need information gauging popular opinion on topics such as consumption, the economy, health, and recreation.