- Lynchburg, Virginia Chapter
- http://www.agohq.org/chapter/?handle=lynchburg
- Richmond, Virginia Chapter
- http://www.richmondago.org
- AGO National Special Events, Including: International Year of the Organ & Organ Spectular
- www.agohq.org/events/index.html
- AGO National
- www.agohq.org
- The Associated Pipe Organ Builders of America
- www.apoba.com
- Organ Clearing House
- www.organclearinghouse.com
- The Organ Historical Society
- www.organsociety.org
- The Encyclopedia of Organ Stops
- www.organstops.org
- Pipedreams
- www.pipedreams.org
- The Vermont Organ Academy
- www.vermontorganacademy.com
- Choir and Organ Magazine
- www.choirandorgan.com
- American Choral Directors Association (ACDA)
- www.acdaondtne.org
- The Hymn Society
- www.bu.edu/sth/hymn
- Chorus America
- www.chorusamerica.org
