European   country organisations 
NVSD Nederlandse vereniging van Square Dansers
EAASDC European Association of American Square Dance Clubs
ECTA European Callers & Teachers Association
Denmark Danish Association of American Square Dance Clubs
France Square Dance in France
Sweden Swedish Association of American Square Dance
United Kingdom British Association of American Square Dance Clubs
Switzerland Square Dancing in Switzerland     
Others
Squaredanceworld.com general information
SquareDancing.com general information for callers & dancers
Callerlab the international association of square dance callers
Ceder definities van calls op de website van Ceder
DOSADO.COM general information