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.