Although this government site is now defunct, this guide from the University of South Florida takes you to the current location of its contents. See in particular the GLOBUS & NTDB section.
U.S. International Trade Commission (ITC) Trade Database
Detailed data up to 10-digit Harmonized System or up to 5-digit SITC. Covers1989 to present.
U.S. International Trade Data from the Foreign Trade Division of the Census Bureau
National Income and Product Accounts (NIPA) Tables - Bureau of Economic Analysis (BEA)
Regional Economic Accounts (BEA)
Estimates of personal income and per capita personal income, Gross State Product, and state employment and income projections. Data at State, county, and metropolitan area level.