Election Information (US)

Pew is a nonpartisan American "fact tank" that provides information on social issues, public opinion, and demographic trends shaping the United States and the world. It conducts public opinion polling, demographic research, media content analysis, and other empirical social science research. Pew Research Center does not take explicit policy positions, and is a subsidiary of The Pew Charitable Trusts

An award-winning website that focuses on opinion poll analysis, politics, economics, and sports blogging. The website takes its name from the number of electors in the United States electoral college, A rival of the RealClear website. [Note: currently owned by ESPN.]

Includes polls from many sources as well as great news (aggregated and original) coverage of politics. Aims for ideological diversity. A rival of the 538 website.

Frequently cited by journalists, public officials and researchers, the independent Quinnipiac University Poll regularly surveys residents in Colorado, Connecticut, Florida, Iowa, New Jersey, New York, Ohio, Pennsylvania, Virginia and nationwide about political races, state and national elections, and issues of public concern, such as schools, taxes, transportation, municipal services and the environment.

Focus is more on historical polling information as Roper is a polling data repository of polls conducted by news, commercial, and academic organizations.

This professional association has created a useful page with resources about polls and understanding them.