HubHip: Arts: Music: Instruments: Keyboard (1421)

International Association of Electronic Keyboard Manufacturers (Site) - The trade organization of companies that manufacture and sell keyboards. Articles, information, and links.
miniorgan.com (Site) - Online museum of lost organs and childish synthesizers such as the Stylophone (1968) and the Elektronik Orgel (1982), by makers including Mattel and Casio, with photos and audio.