Overview of the risks for Puerto Rico. Charts of risk levels for political and commercial risks for export transactions and direct investments
http://www.ducroire.be/WebDucDel/Website.nsf/AllWeb/Puerto+Rico+(United+States)?OpenDocument&Disp=1&Language=en

Links for Doing Business in Puerto_Rico.
http://dmoz.org/Regional/Caribbean/Puerto_Rico/Business_and_Economy/

Free access to online investment and privatization resources for Puerto Rico provided by the World Bank's Multilateral Investment Guarantee Agency (MIGA) division.
http://www.fdi.net/country/sub_index.cfm?countrynum=160

The Latin American Network Information Center annotated links and resources for Puerto Rico.
http://lanic.utexas.edu/la/cb/other/pr/

The Center for Disease Control information site for travelers to the following countries: Anguilla (U.K.), Antigua & Barbuda, Bahamas, Barbados, Bermuda (U.K.), Cayman Islands (U.K.), Cuba, Dominica, Dominican Republic, Grenada, Guadeloupe, Haiti, Jamaica, Martinique (France), Montserrat (U.K.), Netherlands Antilles, Puerto Rico (U.S.), St. Lucia, St. Vincent & the Grenadines, St. Kitts & Nevis, Trinidad & Tobago, Virgin Islands (U.S.), Virgin Islands (U.K.)
http://www.cdc.gov/travel/caribean.htm

The Canadian Department of Foreign Affairs and International Trade market reports and contact information for the following U.S. states: Alabama, Florida, Georgia, Mississippi, North Carolina, South Carolina, Tennessee, Puerto Rico and the U. S. Virgin Islands.
http://www.infoexport.gc.ca/ie-en/Office.jsp?oid=222

Business directory of Puerto Rico.
http://www.caribseek.com/cgi-bin/directory?type=sub&island=27&cat=4