Wired Magazine has an interesting article on the use of GPS by Amazonian tribes to help survey the Amazon.  The organization Amazon Conservation Team is helping to protect tribal lands by providing equipment, training and funds to help map out tribal lands in an effort to protect them from exploitation by developers, loggers and other such interests.  The article profiles Wutu, a member of the Trio tribe who says “I make maps because I don’t want the companies to come — when they come, maybe the water will be dirty.” 

• With the Help of GPS, Amazonian Tribes Reclaim the Rain Forest ~ Wired Magazine