This is slightly off topic, I concede, but by some coincidence there's a been a "what is populism" discussion on a couple of economics- oriented blogs that I follow. I found this one the most interesting so far:
http://econospeak.blogspot.com/2007/12/further-thoughts-on-populism-with.html ---- Election-Methods mailing list - see http://electorama.com/em for list info
