mapblast.com:: Find maps in the uk and europe by postal code, place name, or address.
multimap: Find streetmaps in the uk and europe by postal code or place name and plan routes.
StreetMap: Find streetmaps and city plans in the uk and europe by postal code or place name.
Up My Street: Includes links to road maps but this site provides lots of local information based on postal codes such as council tax rates, house prices, school catchments etc.
