CIA World Factbook: American Samoa - Features a map and brief descriptions of geography, economy, government, and people. - https://www.cia.gov/library/publications/the-world-factbook/geos/aq.html
Infoplease: American Samoa - Statistics and information on the geography and people. - http://www.infoplease.com/ipa/A0113952.html
American Samoa - Brief information of culture and history. - http://www.samoa.co.uk/faasamoaintro.html