There are several useful subscription databases (like CountryWatch and Marketline Business Information Center both accessible using your name and Banner ID) that provide information about economic data, cultural rules, business guidelines and more in other countries and cultures.
The World Bank also maintains some excellent resources to understand international business issues that can impact international business communications. The World Bank eLibrary (log in with your name and banner ID) includes working papers and economic/development reports on most regions. And the "Doing Business In" website is a critical resource for international business regulations and reforms. See the overall Doing Business report to compare doing business in 183 countries, or visit the individual country reports for specific information about the country of interest. Visit http://www.doingbusiness.org/ to explore regulatory data, statistics, and rankings.
There are also widely-recognized resources from the US government that can be very helpful in researching international information for business communication. These include cultural and statistical information. Remember that statistics can be a big help when writing a report or making a presentation. Consider resources like: