By Instrument

The American Musical Instrument Society - AMIS is an international organization founded in 1971 to promote better understanding of all aspects of the history, design, construction, restoration, and usage of musical instruments in all cultures and from all periods. Includes listings of journals and publications, events calendar, meetings, awards, and links.
www.amis.org/

American Pianists Association - General information and news on this association of pianists.
www.americanpianists.org/

American Viola Society - Basic information, and a listing of regional and state chapters.
www.americanviolasociety.org/

International Association of Electronic Keyboard Manufacturers - IAEKM comprises the global manufacturers of electronic keyboards and affiliated software and publications. Includes introductory keyboard articles, product listing, and links.
www.iaekm.org/

International Double Reed Society - IDRS is the worldwide organization of double reed (oboe and bassoon family) players, instrument manufacturers and enthusiasts. Includes stolen instrument registry, conference and competition information, archived IDRS email list server posts, and listings of their publications and journals.
idrs.colorado.edu/

International Society of Bassists - Forum, newsletter, articles, e-mail directory, and links on the bass.
www.isbworldoffice.com/