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Acton Institute - Promotes a free society informed by religious faith and moral absolutes.

Alexis de Tocqueville Institution - A research foundation conducting, publishing and publicizing research on the promotion and perfection of economic liberty, political freedom, opportunity and democracy in the United States and around the world.

The Allegheny Institute for Public Policy - Pennsylvania-based Conservative think tank devoted to local issues.

The American Enterprise Institute for Public Policy Research - AEI is dedicated to preserving and strengthening the foundations of freedom--government, private enterprise, vital cultural and political institutions, and a strong foreign policy and national defense.

American Foreign Policy Council - Non-profit organization dedicated to bringing information to those who make or influence the foreign policy of the United States and to assisting world leaders, particularly in the former USSR and Asia, with building democracies and market economies.

Anderson Economic Group - Provides public policy analysis for private, public and government sectors.

Applied Information Resources - A non-profit, public policy research and community information organization dedicated to citizen education on public issues.

The Arab American Institute - Provides leadership training and strategies in electoral politics and policy issues that concern Arab Americans.

Aspen Institute - International nonprofit dedicated to fostering enlightened leadership and open-minded dialogue through seminars, policy programs, conferences and leadership development initiatives.

Association for the Study of Ethnicity and Nationalism (ASEN) - Based at the London School of Economics, ASEN is concerned with advancing the study of ethnicity and nationalism. Provides bulletin, lectures and seminar speaker profiles, membership info, and conference announcements.

Atlantic Institute for Market Studies - Canadian think tank.