Along with the ICPSR database (see the Online Gateways to Data Sources box), try these databases for public opinion data.
Sage Data, formerly Data Planet Statistical Datasets, provides access to data from billions of licensed and public domain datasets. Users can scan the contents of the collection, select subjects and variables of interest, and view data in side-by-side tables and charts. All of the data have been standardized and structured, and are described with up to 37 fields of metadata, including a controlled vocabulary.
Provides comprehensive access to international financial statistics, balance of payments statistics, direction of trade statistics, and government finance statistics databases. View and download predefined reports or build your own.