ACME Mapper is a high-precision general purpose mapping application, based on Google Maps with a additional functionality.
You can find information on how to use the application at http://mapper.acme.com/about.html.
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Acme Mapper
Good resource to locate addresses, place names, natural features and road names around the world, with exact coordinate precision. It offers information on relevant places near the selected point, and also provides a tool to measure distances on the map.
Although it uses Google Map images as a base layer, its search system is not dependent of the zoom level as Google’s is.