Its often difficult to wade through the mass of energy literature, for a newcomer to the field. With oil levels at peak highs, everyone actively talking about non-conventional resources, the nuclear power dilemma, the global warming worries, carbon trading .... there's just so much verbiage out there, its simply daunting.
Chevron's Energyville is a nice and simple introduction to the tradeoffs from different energy sources. By asking you to manage a city's energy requirements and its resources traded against its environmental and social impact, the game forces you to think through choices policy makers grapple with. I also found the resultant comparison against other participants a pretty cool way of shaping thought.