- 
			          Should I Buy a Car's Factory Navigation System?
			           
			          Weighing the pros and cons of factory navigation and its alternatives, such as the smartphone.
			            http://www.edmunds.com/car-technology/should-i-buy-a-cars-factory-navigation-system.html
			         
			       
			        - 
			          Best Hiking GPS Apps 2015
			           
			          The best hiking GPS apps provide great navigation, mapping, tracking, and sharing capabilities. Read on to see which app best meets your needs.
			            http://gps.about.com/od/productreviews/tp/Best-Hiking-GPS-Apps-2015.htm
			         
			       
			        - 
			          The Best Free GPS Apps For Your iPhone - PCMag.com
			           
			          If you have an iPhone, you also have a handheld GPS. Here are some of the best free navigation apps we've tested, many of which have equally capable Android versions.
			            http://www.pcmag.com/article2/0,2817,2414409,00.asp
			         
			       
			        - 
			          We Tested 4 GPS Apps That Work Even When You're Offline
			           
			          To get a look at the market for offline GPS systems, we downloaded four apps that support offline maps, turned cellular data services off, and hit the road.
			            http://www.wired.com/2015/04/offline-gps-apps
			         
			       
			        - 
			          13 Best GPS App And Navigation App Options For Android
			           
			          These days most people use Google Maps or Apple Maps but are always curious what their navigation app options are. In this list, we'll show you the best.
			            http://www.androidauthority.com/best-gps-app-and-navigation-app-for-android-357870/
			         
			       
			        - 
			          How The iPhone Knows Where You Are
			           
			          As soon as you open Maps, your iPhone figures out where you are, right? Not exactly. Glenn Fleishman explains how Apple uses cell towers and Wi-Fi to speed up GPS fixes.
			            http://www.macworld.com/article/1159528/how_iphone_location_works.html
			         
			       
			        - 
			          Welcome to GPS.gov
			           
			          Public information about the U.S. Global Positioning System (GPS)
			            http://www.gps.gov
			         
			       
			        - 
			          GPS World
			           
			          Investigations of how the world is using GPS and navigation technology, the latest news, newest products, and more.
			            http://gpsworld.com
			         
			       
			        - 
			          Magellan GPS
			           
			          Magellan delivers innovative GPS technology for vehicle navigation, outdoor recreation, iphones, and GIS.
			            http://www.magellangps.com
			         
			       
			        - 
			          Garmin - United States
			           
			          Delivering innovative GPS technology across diverse markets, including aviation, marine, fitness, outdoor recreation, tracking and mobile apps.
			            http://www.garmin.com/en-US
			         
			       
			        - 
			          Global Positioning System - Wikipedia, the free encyclopedia
			           
			          The Global Positioning System is a space-based navigation system that provides location and time information in all weather conditions, anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites.
			            https://en.wikipedia.org/wiki/Global_Positioning_System