Location Based Services - MapPoint Location Server and Global Positioning System (GPS)
Mobile Positioning Techniques :: Chapter 17: Location-Based Services :: Part Four: Beyond Enterprise Data :: Mobile and wireless design essentials :: Mobile devices :: eTutorials.org
Overview Background Current constellation status Constellation performance GPS modernization Summary. - ppt download
GitHub - radd/rest-service-gps: REST service for sharing and following GPS coordinates (part of the real-time tracking system)