4 links
American Association of Public Opinion Resources
aapor.org
Provides guides, standards, definitions, recommended and condemned practices for public policy survey data collection.
EUGene Program
eugenesoftware.org
EUGene serves as a data management tool for creating data sets for use in the quantitative analysis of international relations; with the country-year, directed-dyad-year, and di…
Inter-University Consortium for Political and Social Research
icpsr.umich.edu
Provides access to an extensive collection of downloadable data. While some data is only available to individuals from member institutions, an extensive collection of criminal just…