Roper Center for Public Opinion Research was created in 1947.
Public Opinion Research was created in 1976.
American Association for Public Opinion Research was created in 1947.
World Association for Public Opinion Research was created in 1947.
Public Opinion Quarterly was created in 1937.
The Russian Public Opinion Herald was created in 2003.
Watertown Public Opinion was created on 1887-03-27.
Center for Public Integrity was created in 1990.
Center for the Public Domain was created in 1999.
Center for Public Leadership was created in 2000.
Public Health Research Institute was created in 1942.
Institute for Public Policy Research was created in 1988.
Public Religion Research Institute was created in 2009.