| U.S. House of Representatives Internet Law Library Code of Federal Regulations |
| U.S. House Democratic Leadership Site for Tax Policy | |
| Flat Tax | |
| Government Finance Officer's Association | |
| Tax Cruncher Software Incorporated |
| U.S. Department of the Treasury | |
| Office of Management and Budget | |
| U.S. Department of Commerce | |
| U.S. Chamber of Commerce | |
| Resources for Economists |
| World Bank | |
| Institute for International Economics | |
| Valore International Finance - A Multilateral Strategy |
| Department of Health and Human Services Poverty Guidelines | |
| Center on Budget and Policy Priorities | |
| National Coalition for the Homeless | |
| U.S. Department of Housing and Urban Development |
| U.S. Department of Health and Human Services | |
| Health Policy Page from Idea Central | |
| Intergovernmental Health Policy Project | |
| Healthcare Policy and Legislation |
| U.S. Department of Transportation | |
| Federal Aviation Administration, Office of System Safety | |
| American Public Transit Association | |
| Transportation Research Forum | |
| Bureau of Transportation Statistics | |
| Transportation Policy Program |
| U.S. Department of Education | |
| Institue for Better Education Through Resource Technology - Principles of Democracy | |
| International Bureau of Education |
| Department of Energy | |
| U.S. Environmental Protection Agency | |
| EnviroLink | |
| Nature Conservancy | |
| National Parks and Conservation Association | |
| U.S. Department of Justice | |
| Crime-Free America | |
| U.S. Federal Courts Finder |
| U.S. Department of Agriculture | |
| National Agricultural Library | |
| Economic Research Service | |
| Center for Agricultural and Rural Development | |
| National Farmers Organization | |
| Society for Engineering in Agricultural, Food, and Biological Systems | |
| Federal Agriculture Organization |
| U.S. Department of Defense | |
| U.S. Agency for International Development | |
| United Nations Educational, Scientific, and Cultural Organization | |
| Foreign Policy |