Grant McCracken has posted his fantastic foreword to Interviewing Users.

This is a wonderful book. Steve can teach us how to improve our ability to penetrate other worlds and examine our assumptions. Ethnography has suffered terribly in the last few years. Lots of people claim to know it, but in fact the art and science of the method have been badly damaged by charlatans and snake oil salesmen. Let’s seize this book as an opportunity to start again. Let Steve Portigal be our inspired guide.