SoundList
- Website and email list for announcements of experimental music, free improvisation and sound art events in the Toronto area.
- https://listserv.yorku.ca/archives/soundlist.html

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/

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/

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/

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

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

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

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/