Professional Miniature Golf Association - The PMGA is for miniature golf lovers-both on a professional and an intimate level. Tournaments, profiles, and a directory of courses around the U.S.A.
The Putting Penguin - Unofficial reviews of miniature golf courses around the world and a tournaments list.
British Minigolf Association - Official site of the UK's governing body for mini golf sport including adventure golf and crazy golf. Includes free advice on crazy golf and minigolf course design and construction.