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

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

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

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
   http://idrs.colorado.edu/

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 an
   http://www.amis.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.
   http://www.iaekm.org/