ANES produces high quality data from its own surveys on voting, public opinion, and political participation; see Data Center for downloads.

Firm-level survey of a representative sample of an economy's private sector from the World Bank..

The Standard Eurobarometer was established in 1974. Each survey consists of approximately 1000 face-to-face interviews per country. Reports are published twice yearly..

The European Social Survey (ESS) is an academically driven cross-national survey that has been conducted across Europe since 2001. Every two years, face-to-face interviews are conducted with newly selected, cross-sectional samples..

A large-scale, cross-national, and longitudinal survey research program on basic human values..

Longstanding survey about what Americans think and feel about various political issues.

national and international comparative surveys from the fields of social and political science research.

Compilation of Pew Research's public opinion surveys from around the world on a broad array of subjects ranging from people's lives to views about the current state of the world..

A continuous program of cross-national collaboration running annual surveys on topics important for the social sciences.

National study on the thinking and life experiences of Generation X..

Aggregates over 1 million Americans' responses to the 'Most Important Problem' question using survey data from 1939-2020..

exploring roboethics questions in the domain of self-driving vehicles, care robots, and lethal autonomous weapons systems, see its unique archive of public opinion polls..

Track key national, political, economic and demographic trends over time..

British opinion polls database from 1943-today, from Mark Pack..

A large online database of public opinion polls..

A nonprofit, nonpartisan organization dedicated to conducting independent research at the intersection of religion, culture, and public policy..

More than public opinion surveys, but public opinion surveys are biggest category of religious data.

Public opinion surveys from U.S. and around the world..

Open source software that harvests social media data and web resources from Twitter, Tumblr, Flickr, and Sina Weibo. It empowers researchers, faculty, students, and archivists to define and create collections of data..

Examines public attitudes toward freedom of speech, press, religion and the rights of assembly and petition..

Programs for the documentation and Web-based analysis of survey data, including ANES and GSS..

Understanding Society is the largest longitudinal household panel study of its kind and provides vital evidence on life changes and stability. See data and documentation..

The WVS consists of nationally representative surveys conducted in almost 100 countries which contain almost 90 percent of the world.