Added 22 May, 2013
Wide swaths of national forests in the country of Chile have been devastated by wildfires. In response, one charity, Reforest Patagonia, is actively replanting trees using donations from people around the world. For a USD $4 donation, the charity will plant a tree in your name, and email you a link with its exact location in Google Maps. Of course, there is Facebook integration as well so your good deed can go viral.