Global+positioning+systems+(GPS),+navigation+systems+and+geotagging

__** Global Positioning Systems (GPS) **__
 * Title || Link || Summary || Provided by: ||
 * How The GPS works || media type="youtube" key="DsmvTzw3GP4" height="315" width="420" || This explains how the satellites work in terms of receiving and delivering data to GPS users. || Mohammed Selim ||
 * GPS over-reliance driving us towards catastrophe: experts || http://www.smh.com.au/technology/sci-tech/gps-overreliance-driving-us-toward-catastrophe-experts-20110311-1bqhl.html || This article talks about that the GPS can be unreliable at times and that it can be easily jammed by people. || Mohammed Selim ||