Perhaps the premiere site for the determination of the peaking process as it unfolds. interviews concerning peak oil related issues

Earth Spirit Earth Crash: Healing Ourselves and a Dying Planet (Source Material on Ecosystem Destruction & Collapse, Loss of Biodiversity, Endangered Species & Extinction, Global Warming & Climate Change, Pollution, Over-population)

Association for the Study of Peak Oil

Oil Analytics

Technocracy: a "scientific rational" approach to society's dependence on energy

Mission: assemble, study, and disseminate global oil supply data

A collection of expertise on the Peaking of Oil, in memory of M. King Hubbert.

Famous and extensive site on the Peaking of Oil: from the perspective of Scientific Materialism, leading to utter despair.