After focusing primarily on anthropometric data and methods for the last 18 months, we are shifting to spotlight ethnographic methods. This is to reach a broader spectrum of design researchers who work on a range of product and design issues. We'll continue to cover anthropometric data and sources in an ongoing manner.
Applied ethnography may be defined as ethnographic field work done to bring the consumer's or customer's point of view to the design and development of a new product. Applied ethnography can also be used to improve existing products. - Liz Sanders, provides an excellent overview of ethnography in product design research that defines and differentiates it from other methods and provides some basic tools and guidelines.
To continue learning on your own, here is some excellent background reading/references on ethnography for design. Otherwise, stay tuned tune to the IDSA Human Factors site for forthcoming recommended content, case studies and methods.