ConsumerSearch.com: Stair Steppers Product Reviews and Reports: Identifies which products reviewers like and dislike, where they agree or disagree, and why.
Epinions: Stair Climbers: Consumer-generated reviews, buying tips and advice, ratings, price information, and searchable in a variety of ways from price to product type.
Selecting and Effectively Using a Stair Stepper/Stair Climber: The American College of Sports Medicine's guide to purchasing and using stair steppers/climbers.