UN Comtrade Trade Database

http://unstats.un.org/unsd/comtrade/default.aspx

This incredibly complex trade database has detailed product-by-product international trade statistics, as well as trade statistics by country pairs. It's free, but you pay in blood trying to figure out the user interface. Actually, in all fairness, it's easier to use than some of the other UN efforts and has cool data display tools (check out the "Tag Clouds" feature) which make us feel we are living in the e-future.

KEYWORDS: trade statistics