Reference books are a good place to start...

Culturegrams: The Nations Around Us REF GT 150 .C85 2002 2 vols.
Summaries of unique customs, values, traditions and lifestyles of 110 countries.
International Business Etiquette: Europe  REF HF 5389.3.E87.S23 2004
Shares the practical do's and don'ts of interacting with individuals in all countries throughout Europe.
International Business Etiquette: Latin America  REF HF 5389.3.L3.S22 2000
Shares the practical do's and don'ts of interacting with individuals in all countries throughout Latin America.
International Business Information: How to Find It, How to Use It REF HF 54.5 .P33 1999
Junior Worldmark Encyclopedia of World Cultures  REF GN 307.J85.1999 9 vols.
Contains articles exploring the ways of life of over 290 cultures worldwide.
Kiss, Bow, or Shake Hands: How to do Business in Sixty Countries REF HF 5389 .M67 2006
Gives cultural overviews, behavior styles, negotiating techniques, protocol, and business practices of sixty countries.
Passport to the World series REF HD 58.7
Pocket guides to business, customs, and etiquette in the following countries: China, France, Germany, Hong Kong, India, Italy, Japan, Mexico, Spain, Thailand, United Kingdom, USA, and Vietnam.
World Trade Press Country Business Guides series REF HD 58.7
Each volume is a comprehensive review of a country's economy and business practices.  Series includes the following countries:  Argentina, Australia, Canada, China, Hong Kong, Japan, Korea, Mexico, Philippines, Singapore, Taiwan, and the USA.
 

To search for books...

Library catalog: UNICORN
        Suggested subject term: international business; business etiquette; name of country, i.e. China, Nigeria, etc.
        Suggested title search: Cultures of the World

Full text books online: eBooks

Online Encyclopedias

To search for articles...
Note - Off campus users should access using the A-Z database list

International Resources (CultureGrams, Culture Briefing, SIRS Country Profiles)
Business Databases (journal, magazine and newspaper articles)
Gale Database (journal, magazine and newspaper articles)
 

Internet sites...

http://www.executiveplanet.com 
Business Etiquette and Culture in  U.S. Top Trading Partner Nations

http://www.state.gov/r/pa/ei/pgn
Country Background Notes. Put out by the US Dept. of State. Includes detailed information on a country's people, history, government, political conditions, foreign relations, and economy.

http://www.ita.doc.gov
The International Trade Administration.  Regional and country profiles with very extensive industry coverage. Visit the "Trade Information Center" and check out the "country information" link.

http://globaledge.msu.edu/ibrd/ibrd.asp
International Business Resource Desk. Provides information on the business climate, news, history, political structure, economic landscape, and statistical data for 196 countries.

http://www.countryreports.org/info.htm
Extensive Country Profiles.

http://libweb.uncc.edu/ref-bus/vibehome.htm
VIBES: Virtual International Business and Economic Sources.  Good site for country specific information.

http://lcweb2.loc.gov/frd/cs/cshome.html
Library of Congress Country Studies.  History, society, and culture for 85 countries.

http://www.state.gov/www/about_state/business/com_guides/index.html
Country Commercial Guides from the US State Dept. Comprehensive look at countries' commercial environments. Includes good information on business travel.

http://travel.state.gov/travel/warnings.html
Includes Travel Warnings, Public Announcements, and Consular Information Sheets.