Brookings Institution - An independent research and policy institute with a left-liberal inclination, which seeks to improve the performance of American institutions, the effectiveness of government programs, and the quality of U.S. public policies.
Center for American Progress - A think tank offering policy proposals, talking points, events, news and columns. Weekly email newsletter Progress Report.
Center for Defense Information - An institute monitoring the military. CDI provides independent analysis in the form of research papers, educational videos, and free e-mail and print newsletters.
Center for Law and Social Policy - CLASP is a non-profit organization with expertise in both law and policy affecting the poor. Through education, policy research and advocacy, CLASP seeks to improve the economic security of low-income families with children and secure access for low-income persons.
Center for National Policy - CNP undertakes research and analysis to frame options and to formulate policy recommendations, focusing activities in economic analysis, equal opportunity, community studies and foreign policy.
Center Of Concern - The Center of Concern analyses issues from an ethical perspective based on Catholic Social Teaching,and promotes the good of the entire global community and the integrity of every individual.
Century Foundation - A research foundation that undertakes timely and critical analyses of major economic, political, and social institutions and issues
Economic Policy Institute - A nonpartisan think tank that seeks to broaden the public debate about strategies to achieve a prosperous and fair economy.
Institute for Policy Studies - An institute for progressive research and action to create a more responsible society built around the values of justice, nonviolence, sustainability, and decency.
Progressive Policy Institute - A public policy institute shaping the Third Way agenda with progressive legislative solutions.
Urban Institute - An institute investigating and analysing U.S. social and economic problems and issues, including the New Federalism, welfare and welfare-to-work, Medicare, and disabilities issues.
Worldwatch Institute - Analyzes interdisciplinary environmental data from around the world, providing information on how to build a sustainable society.