Taglined as "Druid perspectives on nature, culture, and the future of industrial society" this site is actually a key forum for discussion of 'long descent' scenarios for the future. Considerably darker in tone than the Transition Network, this blog features John Michael Greer’s analysis and commentary. An excerpt:

With the coming of Peak Oil and the beginning of long-term, irreversible declines in the availability of fossil fuels (along with many other resources), modern industrial civilization faces a wrenching series of unwelcome transitions. This comes as a surprise only for those who haven't been paying attention. More than thirty years ago, the Club of Rome's epochal study The Limits to Growth pointed out that unless something was done, a global economy based on fantasies of perpetual growth would collide disastrously with the hard limits of a finite planet sometime in the early twenty-first century. The early twenty-first century is here, nothing was done, and the consequences are arriving on schedule. The road that would have brought industrial society through a transformation to sustainability turned out to be the road not taken. The question that remains is what we can do with the limited time we have left.

Recommended reading for those days when you begin to suspect that switching to squirrely lightbulbs is not enough!