Provides access to articles on public policy research and analysis from think tanks, university research programs, research organizations and publishers. Covers a wide range of topics from international trade to health care reform, from telecommunications regulation to terrorism.
This organization makes conference papers, pre-print journal articles, and working papers in the social sciences searchable and provides full text access to many of them. This is a good place to find very recent material.
Based in Philadelphia, the organization is "dedicated to producing the highest quality scholarship and nonpartisan policy analysis focused on crucial foreign policy and national security challenges facing the United States." It was founded in 1955 with support from the University of Pennsylvania.
The Lauder Institute at the University of Pennsylvania ranks think tanks by topic area and by region. See:
Top Defense and National Security Think Tanks, pp. 96-98, for important research centers around the world.