WorldTradeLaw.net The free part of this website provides full texts of the WTO and NAFTA agreements; searchable GATT panel reports, WTO panel and appellate reports and arbitration decisions; and NAFTA Chapters 19 and 20 decisions and other NAFTA decisions, but not Chapter 11. Paid subscribers also get the editors' WTO Dispute Settlement Commentaries, the WTO Case Law Index to the Commentaries, and Subject-Matter Pages that list WTO disputes and GATT reports by major topics.
InterAm database, National Law Center for Inter-American Free Trade Covers trade and finance-related laws and regulations of a number of Central American and South American countries, and includes selected English translations. You may search the database for free, but access to full texts requires a subscription. The NYU Law Library has a subscription to the database.
WESTLAW (requires a password). Search for NAFTA in the Find a Database Wizard. NAFTA materials include leading books, the NAFTA text and NAFTA-AWARDS, selected decisions and awards beginning with 2000.
WESTLAW also has an International Trade tab (Add a tab--Topical) that you can add to your WESTLAW home page.
LexisNexis (requires a password). Go to Area of Law by Topic>More>International Trade, for a list of files containing the legal agreements, decisions, U.S. administrative law sources, and books and journals.