This article is from the Depression FAQ, by Cynthia Frazier with numerous contributions by others.
The following are places one might find help in Great Britain:
Depressives Associated PO Box 1022 London SE1 7QB
Depressives Anonymous 36 Chestnut Avenue Beverley Humberside HU17 9QU
MIND (National association for mental health) 22 Harley Street London W1N 2ED
To find a psychiatrist/ psychologist near you, call or write: Royal College of Psychiatrists 17 Belgrave Square London SW1X 8PG