The U.S. Department of Energy's Energy Information Administration home page is a great place to obtain data on usage, imports, global production, etc. for all types of energy resources.
The Oil Depletion Analysis Centre (ODAC) is an independent, British educational non-profit organization working to increase public understanding of the world's pending oil depletion.
Princeton's web site for: "Hubbert's Peak: The Impending World Oil Shortage" By Professor Kenneth S. Deffeyes.
This web site is called Hubbert's Peak is operated by an organization called Ecosystems.
"THE END OF CHEAP OIL" by Colin J. Campbell and Jean H. Laherrère, was originally published in Scientific American, March 1998.
"Die Off" is a site that discusses population crash scenarios and, especially the concept of "Peak Oil". It contains a large amount amount of information on the geological and economic aspects of Peak Oil.
To understand world energy
demand, you must realize that world
population is increasing rapidly (and the rate of increase is increasing
daily); people use energy (the U.S. uses 25% of the world's petroleum), and
world demand is increasing rapidly.