CIA World Factbook: Palau - Features a map and brief descriptions of geography, economy, government, and people. - https://www.cia.gov/library/publications/the-world-factbook/geos/ps.html
World Travel Guide : Palau - Reliable information of population, statistics, telephone, international, codes, geography, language - http://www.travel-guide.com/data/plw/plw.asp
Infoplease: Palau - Very basic information on the land, its people, history and government. - http://www.infoplease.com/ipa/A0107866.html