This is a personal list of Web sources of information that appeal to me. I do not claim that this list is either complete or even fair. You should develop your own ideas. Wikipedia is a place to start.

The obvious source for the decline in oil is, of course, the archives of theoildrum.com; it is only defunct in the sense that the contributors have moved on. Jean Laherrere  is my own main source, but his reports are widely scattered. But they do turn up in Web searches. You can find key posts by Jean Laherrere on the oildrum.com. 

My favorite follow-on source, following world and U.S. oil developments is Ron Patterson at peakoilbarrel.com; you can find links there to further active contributors. They often supply informative blog comments. Of the commenters, Dennis Coyne often does modelling. Another site that is following developments in world oil is crudeoilpeak.info by Matt Mushalik. Rune Likvern at fractional flow.com has been following  the production of oil in the Bakken. You can also find occasional posts on oil matters at bittooth.blogspot.com. 


For general resource issues, two sites of interest are resourceinsights.blogspot.com and richardheinberg.com. Links to the work of David Hughes and the Post Carbon Institute (postcarbon.org) can be found often at resilience.org.

On a larger scale, there is an excellent book, "Sustainable Energy Without the Hot Air" that can be found at  withouthotair.com.