Penguin Digital delivers “The 21 Steps” via Google Earth

Product Review: “The 21 Steps” by Charles Cumming (Penguin Digital)
by Christine Bush for EarthSatelliteMaps.com
Date: 2008-08-24
Source: http://wetellstories.co.uk/stories/week1/
KML, the XML-based language used by Google Earth, allows the geospatial data service to be extended in surprising ways. One example of its extensibility can be found in an interesting promotion in progress now by Penguin […]