Ethnologue
Information on the languages spoken in São Tomé e Príncipe. Part of Ethnologue: Languages of the World http://www.ethnologue.com/show_country.asp?name=S%C3%A3o+Tom%C3%A9+e+Principe
FCO Country Profiles - Sao Tome and Principe
Notes on geography, history, politics, economy, international relations, travel, current affairs. http://www.fco.gov.uk/servlet/Front?pagename=OpenMarket/Xcelerate/ShowPage&c=Page&cid=1007029394365&a=KCountryProfile&aid=1019744986498
CIA Factbook - Sao Tome and Principe
Features map and brief descriptions of geography, economy, government, and people http://www.odci.gov/cia/publications/factbook/geos/tp.html