What I'm calling "preparing for bad times" seems to be known by a host of different names depending on the subculture you come from. If you're an environmentalist you might call it sustainable living, whereas if you're right-wing you may just call it survivalism. If you visit the lefty blogosphere a lot you probably wouldn't refer to yourself as a "prepper" as this is pejorative in those circles, but if you adore Sharon Astyk and talk about homesteading and relocalization, you're golden. But all these groups are seeing a lot of the same things on the horizon.
Anyway, this very useful site compiles mp3 files on the topic of preparing... highly recommended!