American Council for Capital Formation
Americans for Fair Taxation
Americans for Tax Reform
Banneker Center for Economic Justice
Barber Plan
Better Way USA Plan
Bipartisan Commission on Entitlement and Tax Reform
Brookings Institution
California Taxpayers' Association
Campaign to Abolish the IRS Code
Cascade Policy Institute
Cato Institute
Center for Public Policy
Center on Budget and Policy Priorities
Citizens for an Alternative Tax System
Citizens for a Sound Economy
Citizens for Tax Justice
Concord Coalition
Council on Tax and Fiscal Policy
Democratic Leadership Council
Economic Policy Institute
Electronic Policy Network
European-American Tax Institute
Federal Tax Reform Network
Flat Tax Home Page
Help America
Henry George Foundation
Heritage Foundation
Institute for Policy Innovation
Joint Economic Committee
National Bureau of Economic Research
National Center for Policy Analysis
National Commission on Economic Growth and Tax Reform
National Federation of Independent Business
National Taxpayers Union
North American Tax Policy Academy
Office of Tax Policy Research (U. Michigan)
Oregon Taxpayers United
Progressive Policy Institute
Social Security Privatization
Tax Analysts Discussion Groups
Tax Foundation
Taxpol - Tax and Public Finance Policy
U.S. Treasury Department
World Directory of Think Tanks