WAssociation of International Olympic Winter Sports FederationsWInternational Ski FederationWItalian Winter Sports FederationWJoint Service Mountain Training CentreWNational Ski PatrolWNew England Lost Ski Areas ProjectWNorwegian Ski FederationWProfessional Ski Instructors of America & American Association of Snowboard InstructorsWSki Association of SloveniaWSki BumsWSki schoolWSkiStarWU.S. Ski & Snowboard