|CGP (Catalog of U.S. Government Publications)
Indexes print and electronic publications of the U.S. government, the world's largest publisher. 1976 - present.
|CQ Researcher Online
CQ Researcher contains in-depth, non-biased coverage of political and social issues, with regular reports on topics in health, international affairs, education, the environment, technology, and the U.S. economy. 1991 - present..
Digital library of over 700 cross-searchable reference books in a wide variety of disciplines. A great starting point for your research that also leads you right to the library catalog and other databases.