Peak Oil Resources

Colin Campbell and J. Laherrère: "The End of Cheap Oil" - article in Scientific American (1998)

Homepage for ASPO, the Association for the Study of Peak Oil and Gas

Link to the Hirsch Report, "PEAKING OF WORLD OIL PRODUCTION:
IMPACTS, MITIGATION, & RISK MANAGEMENT"
Robert L. Hirsch, SAIC, Project Leader,  co-authors, Roger Bezdek, MISI Robert Wendling, MISI (February 2005)

BP "Statistical Review of World Energy" (2008)

Energy Information Administration (EIA) "International Energy Outlook" (2007)

The Oil Drum is a very interesting, fairly technical blog about peak oil, natural gas, mining, etc.

Center for Transportation Analysis, Oak Ridge National Laboratory, "Transportation Energy Data Book", 25th ed. (2006)

Office of Planning, Budget Formulation and Analysis;  Energy Efficiency and Renewable Energy,
U.S. Department of Energy, "Buildings Energy Data Book" (2006)

A paper on peak fossil fuels and emissions scenarios.