Raintree – A very readable account of the value of the rainforests and the threats to them. Includes a look at subsistence farming, which in many places could be replaced by Inga alley cropping, leaving more intact rainforest to be better used. “In fact, the latest statistics prove that rainforest land converted to cattle operations yields the landowner $60 per acre; if timber is harvested, the land is worth $400 per acre. However, if medicinal plants, fruits, nuts, rubber, chocolate, and other renewable and sustainable resources are harvested, the land will yield the landowner $2,400 per acre.” This is a commercial site. Clicking through the site shows what a wealth of products can be obtained from the rainforest.