Map Tools - Tools for plotting latitude, longitude and UTM coordinates on many different scales of topographic maps. - http://www.maptools.com/
Global Positioning System (GPS) Resources - Large collection of information/education resources and links, from Iowa State University. - http://www.edu-observatory.org/gps/gps.html
ATI Global Positioning System (GPS) Technology course - Thomas Logsdon has designed this 4-day GPS Technology short course for engineers, scientists, technicians, and managers who are involved in the design, management and applications of the Global Positioning System. - http://www.aticourses.com/gps_technology.htm