For starters, information about Net Energy (Yield per Effort, EROI, EROEI) is located in the Net Energy Section. General Overview

Energy Economics and Fossil Fuels: How long do we have?

Background, Economics 101

• Classic Supply and Demand, WikiPedia, with simple line diagrams
• Classic Supply and Demand, dynamic graphics
• Classic Supply and Demand, various line diagrams
• Supply and Demand, serious mathematics