Nancy Fratti Music Boxes – Buy-sell-restoration for antique cylinder/disc boxes; restoration supplies; recordings; books; info.

Musical Box Society of Great Britain / Books – offering a number of important books.

Morris Museum – Musical Machines & Living Dolls: The Murtogh D. Guinness Collection.

Morphy Auctions – central Pennsylvania premier antique auction house.

Mechanical Music Press – Books, articles and recording about mechanical music.