SAGE Reference Online and Gale Virtual Library contain several useful reference books that can be accessed online and will helpful in developing a basic understanding of a country's culture.
Examples of the books found in SAGE and Gale Virtual.
Consulting firms focusing in international activities will often publish reports that will contain useful information for understanding consumers and cultures in other countries.
Other useful organizations to consider include associations, think tanks, and foreign government websites.
Below are some example resources, but you should try others from similar resources (be sure to evalute the website for accuracy, currency, authority, and objectivity).