An interesting harmonium website :http://harmonium.co.uk/
Another interesting harmonium website www.Harmoniumhire.co.uk
Cambridge Academy of Organ Studies -
Study days led by distinguished performers and scholars and an annual summer course.
www.cambridgeorganacademy.org
British Institute of Organ Studies (BIOS) http://www.bios.org.uk
The National Pipe Organ Register (NPOR) www.npor.org.uk
Royal College of Organists http://www.rco.org.uk
The IMSLP / Petrucci Music Library provides a large amount of out of copyright organ music - http://imslp.org/wiki/Main_Page
The ChoralWiki site provides a large number of organ accompaniments to choral music - http://www2.cpdl.org/wiki/index.php/Main_Page
Göteborg Organ Art Centre - www.goart.gu.se
The organlinks of het ORGEL http://www.hetorgel.nl/eindex.html
