UW Libraries' Database has Extensive Information on U.S. Public Opinion Surveys
A half a million questions and answers from public opinion surveys in the U.S. since 1935 are now available in iPoll, a UW-restricted database available through UW Libraries. All major U.S. polling organizations are included in these archives of the Roper Center for Public Opinion Research at the University of Connecticut. The iPoll link is about halfway down the page.
http://www.lib.washington.edu/types/databases/i.html |