Here are some links to choral resources on the Web.
Scottish Music Centre (information on Scottish performers, composers and concerts)
Gerontius (including searchable directories of uk choirs and choral concerts)
British Choirs on the Net (list of British choral websites)
Choral Net (“the Internet Center for Choral Music”)
Choral Public Domain Library (choral music in the public domain)
The Cyberbass Project (including free MIDI files to help you learn your part; Chichester Psalms here)
Vocalist.org.uk (for singers, vocalists, singing teachers and students of voice)