active sites directory

Active Sites Directory is a free directory which covers a large variety of sites organized by category. Browse thousands of web sites that are more focused on one particular aspect of Science, Social Sciences, Geography, Geographic Information Systems, Software, Coordinate Conversion with just the click of your mouse.

» CoordTrans - Convert geographic coordinates between UTM, WGS84, NAD83, NAD27 and other national grids.

» Decimaldegrees - Investigation of and experimentation with various GIS technologies, and the Internet. Latitude, longitude conversion and geocoding tools.

» SeisSoft - Producers of projection and datum transform software.

» ZipMath - World database with latitude and longitude coordinates. Includes formula for calculating the distance between any two world cities.

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