| Any | 
| Web Map Service (WMS) http://www.opengeospatial.org/docs/01-068r2.pdf A standard for requesting images of maps | 
| Web Feature Service (WFS) https://portal.opengeospatial.org/files/?artifa... Standard for requesting geographic data. | 
| Styled Layer Description (SLD) http://www.opengeospatial.org/docs/02-070.pdf Standard rules in XML on how to 'style' spatial data in to a map | 
| KML http://www.keyhole.com/kml/kml_doc.html Google Earth's 'open' format for points | 
| SVG http://www.w3.org/Graphics/SVG/ An open vector graphic format developed by WC3 | 
| The Internet http://docs.codehaus.org/display/GEOS/Latest The internet is a useful distribution device | 
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