Just Plain Folks  
   Organization of music industry professionals whose goals include the networking of members and the promotion of music worldwide. Includes a list of mentors, links and current member demographics.
   http://www.justplainfolks.org/

The Acoustic Performer's Guild  
   A non-profit organization dedicated to acoustic musicians and the creation and dissemination of unamplified, acoustic music. Basic membership and organization information.
   http://www.geocities.com/singing_string/

IFPI  
   International organization fighting music piracy and promoting fair market access and adequate copyright laws. Includes piracy news, market info, publications, and copyright FAQ.
   http://www.ifpi.org/

Acoustical Society of America  
   Contains meeting and membership information, a list of publications, and a number of natural and man-made sound samples in the .au format.
   http://asa.aip.org/

European Society for the Cognitive Sciences of Music  
   Events, newsletter and links.
   http://musicweb.hmt-hannover.de/escom/english/index.htm

The Children's Music Network  
   A nonprofit association that now has members across the United States and Canada, including teachers, performers, songwriters, radio hosts, and parents who care about the quality and content of children's music. Includes event calendar, the magic penny aw
   http://www.cmnonline.org/

Choristers Guild  
   An ecumenical organization of directors of children's and youth choirs and publisher of music and related materials. Includes information about events and scholarships.
   http://www.choristersguild.org/

Conductors Guild  
   Includes listing of activities and publications, and downloadable composer contract forms.
   http://www.conductorsguild.org/

NAMM: International Music Products Association  
   Members represent every aspect of musical instrument manufacturing and retailing. Site includes information about membership, and all the promoted activities.
   http://www.namm.com/

A Cappella Almanac  
   Official home of CASA - the Contemporary A Cappella Society of America. A comprehensive source for news and information related to all-vocal music. Also features events, groups, albums, tips and advice, reviews, classifieds, web directory, and song arrang
   http://www.casa.org/

Film Music Society  
   Devoted to the preservation of classic Hollywood movie and television scores. Includes information about many Hollywood composers and film scorers, and membership information.
   http://www.filmmusicsociety.org/

International Association of Music Information Centres  
   A world-wide network of organizations promoting new music, active in thirty-six countries. Each center is responsible for documenting and promoting the music of its own country or region. Includes basic association information.
   http://www.iamic.net/

National Association of Negro Musicians  
   The oldest organization dedicated to the preservation, encouragement and advocacy of all genres of the music of African-Americans in the world. Contains general association info, and links to info on many of the members.
   http://www.nanm.8m.com/

The IMA Web  
   The International Music Association. Features classical music and provides a community for the public, music lovers, and musicians.
   http://www.imusicassociation.com

Rock & Roll Library  
   Works to recognize the historical and cultural significance of popular music. Sponsorship information, newsletter signup, teacher resources, and gift shop.
   http://www.rocklibrary.com/

Electronic Music Defense and Education Fund (EM:DEF)  
   Provides legal assistance to members of the electronic dance music community prosecuted, targeted, or harassed by the government or police.
   http://www.emdef.org/