Classical Dressage Forums: Sylvia Loch offers classical dressage discussion forums on subjects from the basic to advanced.
ClassicalDressage.com: Discussion group open to philosophical as well as technical discussion on the art of classical dressage.
DressageIT: Discussion board on the sport of dressage: competitions and events, training, gear, feeding. Relax after the event in Tailgate Talk.
Flickr: Dressage: Share photos with others who enjoy the sport of dressage.
Flickr: Dressage Horses: Group to share photos. Dressage horses, dressage show photos, dressage moves, dressage horses at play.
Ultimate Dressage: Dressage related bulletin boards.
Yahoo: Classical Dressage Discussion Group: An international forum for the discussion of topics related to the training, history, and culture of classical dressage. Philosophical as well as technical discussion welcome and encouraged.
Yahoo: Natural Classic: A group for those who wish to discuss and explore a horsemanship based on the principles of classical dressage combined with those taught by masters such as Tom Dorrance and those who earnestly seek to emulate him.