Streetmap

Online maps with detailed streetmaps of London. Search by postcode, place name, London streetname or grid reference.
http://www.streetmap.co.uk/

UK Multimap

Online maps of the UK, down to street level. Search by street name, postcode or placename. Based on O/S data.
http://uk.multimap.com/

UK Contrail Pictures

Aircraft contrail images, detailing how different patterns and effects can be formed.
http://www.geocities.com/milo702000/index.html

Old Maps

Online Ordnance Survey maps of 1846-1899 covering England, Scotland and Wales at 1:10,560 scale.
http://www.old-maps.co.uk/

Skylibrary

A UK-based aerial photography company with a large archive of UK aerial photographs.
http://www.skylibrary.co.uk

UK Perspectives

A large concise collection of aerial photos of the UK
http://www.ukperspectives.com

United Kingdom

Map of the administrative divisions as they stood in 1988, from the Library of the University of Texas.
http://www.lib.utexas.edu/maps/europe/united_kingdom.gif

Celtic Shadows

Photographic tour of Northeast Scotland and England from a native's viewpoint.
http://www.celticshadows.co.uk/

AskMaps

Has index of streets and city monuments ready for printing.
http://www.askmaps.com/001/mm2.php

Map24

Full minor road and street level coverage for the whole of Great Britain. Enter a UK address to access maps. Zoom and roam features.
http://www.map24.co.uk/

Ordnance Survey

Britain's national mapping agency. Historical, touring, landline, superplan, GB, Landranger, Explorer, road and street maps.
http://www.ordnancesurvey.co.uk/

Your Old Maps Online

Scans of out of copyright maps and etchings, organised by country and county.
http://www.yourmapsonline.org.uk/

UK 360s

Panoramic photographs from around the British Isles by Craig Wilkinson.
http://www.uk360s.co.uk

Francis Frith Collection

Photographs of 7,000 towns and villages taken between 1860 and 1970. Available as prints and in book collections. Thumbnail views, watermarked enlargements and ordering details.
http://www.francisfrith.com/

Election Maps

Free constituency, county, borough and ward maps. Includes ability to select overlays required between the different types of administrative boundaries, and to determine which area a postcode resides in.
http://www.election-maps.co.uk/

Google Maps

Zoomable maps focused on an address or post code. Maps can be searched by business category. Also provides driving directions.
http://maps.google.co.uk/