LINKS

Ambisonic.net

Ambisonic.net is maintained by Richard Elen, of Meridian Audio Ltd, who has a long association with Ambisonics.  There are many articles here.

Ambisonic FAQ

The long-established Ambisonic FAQ is maintained by Martin Leese.

Ambisonia - downloads of ambisonic material

Ambisonia is a site set up by Etienne Deleflie containing much practical and theoretical information about Ambisonics.  It also hosts torrents of ambisonic recordings which have been contributed by a number of people (including myself).

Wikipedia

There is an article on Ambisonics in Wikipedia.  It has been extensively updated recently, mainly by by Richard Elen and Martin Leese, and contains links to related articles.

Sursound - mailing list

The sursound mailing list is an active list discussing all aspects of surround sound.  Although at times it seems to be almost solely concerned with ambisonics, this is not its intention, and other surround techniques are discussed from time to time.

Innocent Ear

Innocent Ear contains lots of information about recording in stereo (and a bit about surround, but not ambisonics).  The author, Chris Burmajster is a recording engineer, and has a 'purist' approach which tallies somewhat with mine.