Stair Climbers

ConsumerSearch.com: Stair Steppers Product Reviews and Reports
Identifies which products reviewers like and dislike, where they agree or disagree, and why.
http://www.consumersearch.com/www/health_and_fitness/stair-steppers/

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.
http://www.epinions.com/haft_Aerobic_Exercise-Stair_Machines

Selecting and Effectively Using a Stair Stepper/Stair Climber
The American College of Sports Medicine's guide to purchasing and using stair steppers/climbers. [PDF]
http://www.acsm.org/AM/Template.cfm?Section=Brochures2&Template=/CM/ContentDisplay.cfm&ContentID=8107