anonymous (1026972) writes "From time to time you hear rumors about the "evil" Oil Corporations aquiring different technologies related to alternative energy and generally, any technology that may make the use of fossil fuels a thing of the past. So the question I am asking the Slashdot community is: What exactly are these technologies? What companies are buying these patents? And where do I start digging to research this to a further detail. Any links and locations are welcome. Also, I have been thinking about who makes decisions about whether to take action on a, to the oil companies potentionally dangerous technology. Who sits on top of the food chain? Who is the bigger fish, so to speak. Also, everyone who knows about any technologies that have/would have made any difference in our everyday life are welcome to comment."