  No one else has explained GPS better than this site has. I strongly recommend this site to all of you who would love to learn what GPS is and how it works. A word of caution, once you start your journey to learn GPS here, it would take no less than an hour. So please spare some time before even you click this or bookmark it for future reference. [Resrouce-Type: Technology Insight, Category: IS/GPS, Level: IMD/ ADV, XRating: 5] 
