Melodeon.net discussion forum.
Concertina.net discussion forum
CGM Musical Services carries an extensive stock of new and used parts and accessories.
Learnfreereed.com an introduction to all types of concertinas and accordions
Irish-music.net for Traditional Irish Music CDs, festivals, musicians, summer schools, and much more . . .
Phoenix Folk Promoters of weekly classes, weekend workshops, concerts and folk club based at Ouseburn Farm in Byker, Newcastle upon Tyne.