Coverage: Varies; mostly 1998 to present.
Updated: Monthly or quarterly. Provides extensive U.S. and world trade statistics. Includes exports and imports data of U.S. states, customs districts, and individual ports, as well as the EU (1998 to present), Canada (2002 to present), China (2003 to present), Taiwan, Japan (1998 to present), and 184 UN countries. Also includes the Kompass database of 2.8 million companies. From the World Institute for Strategic Economic Research.