Roper iPoll (can also accessed through CLIO)
A collection of data, largely public opinion, that is part of a public data archive maintained by the University of North Carolina.
The Pew Research Center for the People & the Press is an independent, non-partisan public opinion research organization, which provides national, international and trans-national surveys covering attitudes toward politics, the press and public policy issues. All data files are listed under the "DATASETS" tab
A public archive of statewide polls of New Jersey residents conducted by Eagleton in conjunction with the newspaper, the Star Ledger.
A commercial index to question-level results
Gallup Poll Social Series (GPSS)