Allied
'K' Troop Royal New South Wales Lancers, 12th Battalion ANZAC, 13th Battalion Blackwatch, 1st Infantry Division 28th Infantry Company E, 26th "Yankee" Division, 45th Company 3rd Battalion 5th Marines, 5th Battalion Australian Imperial Force - AIF, Irish Guards 1914-1919, Legion Russe Home Page, Major J. F Thomas Riding Troop
Central Powers
8 Kurassier Regiment, 8.Kompagnie, Infanterie - Regiment Nr. 459, Füsilier-Regiment 73, Infantry Regiment 63, K.u.K Infantry Regiment No.63, The Second Bavarian Light Cavalry
F.R.O.G. - Flanders Reenacting Organization Group
Flemish group organises activities for Belgian, English, US, German, and Dutch reenactors for each period of history including World War One. Encourages the participation of women in these events. Calendar, photo gallery, links. Based in Europe.
Great War Historical Society
Reenactment group with Allied and Central Powers units. Events schedule, photo gallery, chat room. Western USA.
Old Rhinebeck Aerodrome Home Page
Museum of flying antique aircraft circa 1900-1940, with regular airshows including demonstrations of World War One aircraft and replicas. Eastern USA.
Peter's Great War Reenacting
Links to organizations, vendors and historical information; German uniforms and equipment information and pictures; articles, events, book recommendations.
The Great War Association
Committed to honoring those who served in World War One. Allied units, Central Powers units, events schedule, articles, photo gallery. Eastern USA.
The Saint Louis Escadrille
Non-profit organization dedicated to preserving World War One aviation. Events schedule, articles on members' aircraft. USA.
Western Front Association, US Branch
Dedicated to perpetuating the memory of those who fought on both sides. Organizes living history events. Chapters, news, events, resources. USA.