Opera Learning Tracks - my very own website where you can purchase learning recordings I've made of over 650 roles in dozens of operas and several choral works. Orders taken for anything not already in the catalogue:
British Voice Association - I'm proud to be a member and have attended some of its excellent training courses:
Jaques Samuel Piano - I use the practice rooms most days and find them comfortable, convenient and very reasonably priced. They also sell some very nice pianos.
Pierard and Joel Music - music typesetting and arranging. Useful people for any musician to know.
Audio Engineering Society - I was until recently a member of this fine organisation and have presented papers at a couple of its international conventions:
Toccata Classics - run, along with Toccata Press, by my good friend Martin Anderson, who has done so much to promote neglected and forgotten music over the last 30 years:
Altarus Records - run by another old friend, alongside whom I learned most of what I know about making recordings many years ago: