UK Discovered.com

Information for newcomers to the UK, including advice on finding flats and jobs, plus a forum and other information.
http://www.ukdiscovered.com/

CIA World Factbook: United Kingdom

Summary information about the country's geography, people, government, economy, communications, transportation, military and transnational issues. Includes a map.
http://www.cia.gov/cia/publications/factbook/geos/uk.html

Wikipedia - Wikiportal: United Kingdom

Extensive encyclopedia entry includes information and links to many topics including government, politics, geography, economics, demographics and culture.
http://en.wikipedia.org/wiki/Wikipedia:Wikiportal/United_Kingdom

US Library of Congress - Portals to the World: United Kingdom

Annotated directory of selected internet resources covering a broad range of subjects.
http://www.loc.gov/rr/international/main/uk/unitedkingdom.html