SEAMUS On-Line  
   Organization dedicated to electro-acoustic music. They maintain a database of performance, grant, and teaching opportunities for electro-acoustic artists.
   http://seamus.lsu.edu/

Mechanical Music Digest  
   Mailing list that discusses mechanical musical instruments. Of interest to experimental music fans are the threads on Conlon Nancarrow and others.
   http://mmd.foxtail.com/index.html

Calendar for New Music  
   New York City listing of avant-garde, experimental jazz, and new music events.
   http://www.soundart.org/

Electronic Music Foundation  
   Information and materials relating to the history and current practice of electronic music. This organization also hosts an experimental music calendar.
   http://www.emf.org/index.html

Vorgon Massive  
   Long Island experimental music collective site, maintained by Droog.
   http://www.geocities.com/vorgonmassive/

Doubling Buzz Directory  
   A directory of free music by Bad Music Revolution and related experimental music artists.
   http://solon.dareios.tripod.com/

SoundList  
   Website and email list for announcements of experimental music, free improvisation and sound art events in the Toronto area.
   http://audiolab.uwaterloo.ca/~soundlst/index.html

Lampo  
   A Chicago-based nonprofit organization that presents experimental music and intermedia events. With current schedule, past events archive and mailing list.
   http://www.lampo.org/

SoniCabal  
   A freeform collective of Seattle-area rule bending musicians and sound manipulators. With performance calendar, pictures, member profiles, and links.
   http://www.sonicabal.com/

Experimental Sound Studio  
   A non-profit organization founded in 1986 for the production and promotion of innovative approaches to the sonic arts.
   http://www.expsoundstudio.org/