International Hapkido USA
– Under Master Kevin Sogor, 4th dan Hapkido. Official site of the International Hapkido USA school. Includes history, instructor profile, schedule, classes and related links. Based in Chicago, Illinois.
Beck Martial Arts
– Under Master David Beck, 6th dan Hapkido and 4th dan Taekwondo. Offers instruction in Hapkido, Taekwondo, Arnis with stress on self defense and self improvement. Includes training, an interesting frequently asked questions section and gallery. Based in Dallas Fort Worth, Texas.