CIA - The World Factbook: Cambodia - 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/cb.html
UK Foreign Office - Country Profiles: Cambodia - Overview of country's geography, history, politics, economy, international relations, travel and current affairs. - http://www.fco.gov.uk/servlet/Front?pagename=OpenMarket/Xcelerate/ShowPage&c=Page&cid=1007029394365&a=KCountryProfile&aid=1018965310423
US Library of Congress - Country Study: Cambodia - December 1987 country profile provides information about its historical setting, society and environment, economy, government and politics, and national security. - http://lcweb2.loc.gov/frd/cs/khtoc.html
NationMaster - Cambodia - Profile includes information for various aspects of the country, with a special emphasis on statistics and rankings. - http://www.nationmaster.com/country/cb
BBC News - Country Profile: Cambodia - Provides overview, key facts and events, timelines and leader profiles along with current news. - http://news.bbc.co.uk/1/hi/world/asia-pacific/country_profiles/1243892.stm
Wikipedia - Cambodia - Hyperlinked encyclopedia article covers the country's history, government and politics, geography, economy, demographics, language and culture. - http://en.wikipedia.org/wiki/Cambodia
US Department of State - Cambodia - Country portal offers a map and links to Background Notes, Country Study, the US embassy and the current ambassador, press releases, fact sheets, annual Human Rights Reports and other major reports including Industry Market Reports. - http://www.state.gov/p/eap/ci/cb/