Here are some links which provide more resources on topics relating to traditional Synagogues and their music:

United Synagogue – An umbrella organisation for Synagogues in the UK

European Cantors Association – An organisation set up to preserve and develop traditional synagogue music in European orthodox communities

Neimah Singers – One of the leading Synagogue choirs worldwide, based mainly in St Johns Wood

London Jewish Male Choir – The L.J.M.C. continue to feature in many concerts providing a fresh angle on Jewish and Isreali Music

Shul Music – An invaluable resource to anyone studying cantorial music aimed at novices and experts alike. The site includes the entire “blue book” viewable online.