CIA - The World Factbook: Christmas Island - Features map and brief descriptions of the geography, people, government, economy, communications, transportation, military and transnational issues. - https://www.cia.gov/library/publications/the-world-factbook/geos/kt.html
NationMaster - Christmas Island - Profile includes information for various aspects of the country, with a special emphasis on statistics and rankings. - http://www.nationmaster.com/country/kt-christmas-island
World Statesmen - Christmas Island - Review of the country's history, politics, leaders and international organizations and treaties. Includes map, constitution, national anthem and pictures of historical flags. - http://www.worldstatesmen.org/Christmas_Island.html
Wikipedia - Christmas Island - Hyperlinked encyclopedia article covers the country's history, government and politics, geography, economy, demographics, language and culture. - http://en.wikipedia.org/wiki/Christmas_Island
Christmas Island Act 1958 - Full text of Australian legislation which established Australian sovereignty over Christmas Island. Last compilation: 2000. - http://scaletext.law.gov.au/html/histact/10/5479/top.htm