Provides statistics (frequencies rates) from questions in public opinion polls from academic, commercial and media survey organizations since 1935. Cross-tabulations possible on some questions results.
The Roper Center for Public Opinion Research is one of the world's leading archives of social science data, specializing in data from surveys of public opinion back to the 1930s. A comprehensive source for US nationwide public opinion data from academic, commercial, and media survey organizations.
This resource provide access to older polls as well as a few current ones. It has a pretty nifty online analysis tool that will allow you to combine variables.
The Odum Institute maintains one of the oldest archives of polling data in the United States and is the exclusive repository for Louis Harris public opinion data. The Odum Institute Dataverse Network provides access to all of the data collections curated by the Odum Institute and from other scholars. The site allows access to downloadable data and allows researchers to do online analysis as well as sub-setting of large data sets.