123Plaza.com: Information includes business and national news, weather, government, arts, culture and other categories.
Acción Puertorriqueña y Amigos: Comprehensive guide with general information and links.
Ah! Puerto Rico: Portal with news, education, sports, arts, business directories, and tourism.
Boricuas on the Net: Guide with news section, sports, entertainment, events, calendar, and other information about Puerto Ricans.
Escape Artist: Information includes art, music, history, culture, government, travel and other sections.
Latinworld: Puerto Rico: General and specific information guide organized by subject.
PuertoRicans.com: Information about the municipalities, music and entertainment, education, sports, media, tourism, history, and the Latino community.
PuertoRicoWOW: Comprehensive information about the Island, including government, business directories, news, restaurants and entertainment.
US Library of Congress - Portals to the World: Puerto Rico: Annotated directory of selected online resources.
WEPA - Puerto Rico: Complete directory for information, including a search engine, for everything in or about this Island.
Wikipedia - Puerto Rico: Hyperlinked encyclopedia article covers the country's history, government and politics, geography, economy, demographics, language and culture.