Locavores, locastores and locavolts have caught my attention lately - 3 strands of the "relocalisation" idea that tends to get a lot of attention in peak oil circles.

Another localisation oriented idea that gets less press attention is the concept of local currencies (or "locabucks" as I'm now dubbing them), an idea which has its roots in the Great Depression as a mechanism for escaping the liquidity trap - and thus might be relevant again in the not-too distant future if present trends continue.