AMPFEA: A Meeting Place For Electronic Artists. Community for people having an interest in electronic art forms, especially music.
Australasian Computer Music Association: Forum for new compositions, information sharing, and research about music technology and computer music.
Carnegie Mellon Computer Music Group: Research in real-time control, acoustic signal processing, music synthesis, music understanding, and performance.
Columbia University Computer Music Center: Classes, events, facilities, projects, software, news.
Electroacoustic: Collection of sites offering informatics, composition, and articles using music technology.
Interactive Audio Special Interest Group: For developers of audio software, hardware, and content, to freely exchange ideas.
International Computer Music Association (ICMA): Individuals and institutions involved in the technical, creative, and performance aspects of computer music. For composers, software and hardware developers, researchers, and musicians.
Kaon: Non-profit organization dealing with experimental, concrete, electronic and environmental music.
MIDI Manufacturers Association: Develops Musical Instrument Digital Interface standards. MIDI is a very commonly used format.
Music Cognition Group: Research in music cognition, music representation, and music technology. (Formerly known as Music Mind Machine)
New Interfaces for Musical Expression: Community page for the annual international NIME conference.
SectionZ Electronic Music Community: Portal offering music searches by title, artist, genre, and mood. Forums, news, staff picks.
United Trackers: Non-profit organization of musicians supporting the Internet music scene.
University of Plymouth Computer Music Research: Research programs focus on Evolution, Interaction, Synthesis and Cognition.