Find Country Commerical Guides and Market Research Reports. Search by country, industry, region or keyword. Some reports require registration (free).
Trade Data & Analysis (export.gov)
Trade data can help companies identify the best countries to target their exporting efforts. Companies can gauge the size of the market for their product as well as develop a price strategy to become competitive.
The Doing Business Project provides objective measures of business regulations and their enforcement across 183 economies and selected cities at the subnational and regional level.
NationMaster -- aggregates statistics from many web sources; single best source of statistics on any country.
StateMaster -- aggregates statistics from all US States.
Data.gov -- Best single location for most government statistics; aggregates at the location level, not the spreadsheet level, in most cases.