Series of bi-partisan public opinion research polls produced jointly by the Tarrance Group and Lake Snell Perry and Associates.

Devoted to research about democracy and public opinion obtained through Deliberative Polling, a technique which combines deliberation in small group discussions with scientific random sampling to provide public consultation for public policy and for electoral issues.

The National Opinion Research Center (NORC) conducts survey research in the public interest for government agencies, educational institutions, private foundations, non-profit organizations, and private corporations.

PollingReport.com. A nonpartisan resource on trends in American public opinion.

A former Congressional Quarterly reporter illustrates current voting trends within the American electorate using maps, tables and text.

The NES produces high quality data on voting, public opinion, and political participation that serve the research needs of those concerned with understanding the theoretical and empirical foundations of mass politics in a democratic society.

Web site for the Pew Research Center, an opinion research group that studies attitudes toward the press, politics and public policy issues.

Roper Center is the largest library of public opinion data in the world. The Center's mission focuses on data preservation and access, education, and research on public opinion.