Brian Moura's Home Page  
   Features lists of multi-channel SADC releases, both current and forthcoming.
   http://ourworld.compuserve.com/homepages/bmoura/

High Fidelity Review  
   DVD-Audio and SACD news and reviews.
   http://www.highfidelityreview.com/

Quadraphonic: The Surround Sound of the Seventies  
   Includes history and information about the different formats, equipment, and encodings.
   http://www.geocities.com/quadaudio/

QuadraphonicQuad  
   Information about multichannel sound, including quadraphonic, DVD-A, and SACD. Features a forum, and label histories with discographies.
   http://www.quadraphonicquad.com/

SurroundMusic.net  
   Features news and reviews of recordings.
   http://www.surroundmusic.net/

Tab Patterson's Quadraphonic Sound Site  
   Information about quad formats, featuring information about transfering quad records to CD-R.
   http://hometown.aol.com/matrixquad/about.htm

Surround Sound Discography  
   Listings of surround sound recordings in many recording formats and encoding systems.
   http://members.cox.net/surround/