Background Notes on countries of the world from the U.S. Department of State. FirstGov (U.S. Government information gateway) FirstGov for Science ( gateway to authoritative selected science information provided by 10 U.S. Government agencies) GPO Access (U.S. Government information) International Trade Information (U.S. Dept. of Commerce) North American Industry Classification System (NAICS) Statistical Abstract of the United States is a collection of statistics on social and economic conditions in the United States compiled by the U.S. government. Stat-USA/Internet (business information; international trade information; includes the National Trade Data Bank) USATRADE Online (export and import information for U.S. commodities) Obtain login and password from reference librarian at Des Plaines Campus Library reference desk, 847-635-1644. Tax forms, instructions, publications, and notices (from the Internal Revenue Service)