The Incorporated Association of Organists (IAO)

The IAO was set up to provide information, support, education and training for organists, choir trainers and organ enthusiasts.  It has over 5,000 members worldwide, and 90 affiliated individual organists' associations in the UK.  You can search for an association near you using their interactive map. The IAO publishes Organists' Review, a quarterly full-colour magazine, with a high reputation for both its content and presentation.  It's available in a range of formats, from a paper copy delivered by post, to digital editions for various devices.  Subscription options.