CIA World Factbook: United Kingdom
Summary information about the country's geography, people, government, economy, communications, transportation, military and transnational issues. Includes a map.
Information of UK
History, government, weather, politics, education, employment, and music.
Information for newcomers to the UK, including advice on finding flats and jobs, plus a forum and other information.
US Department of State - United Kingdom
Country portal offers a map and links to Background Notes, the US embassy and the current ambassador, press releases, fact sheets, annual Human Rights Reports and other major reports including Industry Market Reports.
Wikipedia - United Kingdom
Hyperlinked encyclopaedia article covers the country's history, government and politics, geography, economy, demographics, language and culture.