2000 National Trade Estimate Report on Foreign Trade Barriers
Reports on trade barriers in more than 50 countries. These reports are based upon information compiled within USTR, the U.S. Departments of Commerce and Agriculture, and other USA Government agencies, and supplemented with information provided in response to a notice in the Federal Register, and by members of the private sector trade advisory committees and U.S. Embassies abroad.
http://www.ustr.gov/reports/nte/2000/contents.html

Coalition of Service Industries
Coalition of service industries aims to reduce barriers to services trade and ensure that U.S. economic policies reflect the importance of the service sector.
http://www.uscsi.org/
Market Access Sectoral and Trade Barriers Database
A Service provided by the European Commission that describes market barriers and other market blocking issues for 44 countries, 25 industrial sectors and 13 other measures
http://mkaccdb.eu.int/
U.S. Department of State - Office of Trade Policy and Programs
The Bureau of Economic and Business Affairs' Trade Policy and Programs Division (EB/TPP) advances economic prosperity by increasing trade through the opening of overseas markets and freeing the flow of goods, services, and capital.
http://www.state.gov/e/eb/tpp/
World Trade Organization
The WTO is the only international body dealing with the rules of trade between nations. At its heart are the WTO agreements, the legal ground-rules for international commerce and for trade policy. The agreements have three main objectives: to help trade flow as freely as possible, to achieve further liberalization gradually through negotiation, and to set up an impartial means of settling disputes.
http://www.wto.org/