- American Choral Directors Association ACDA
- Association of Canadian Choral Conductors ACCC
- Boychoir – Past, Present and Future Larry Ford et al
- Choir and Organ journal; England
- Choral Archives Christian Classics Etherial Library, Calvin College, Grand Rapids, MI USA
- The Choral Public Domain Library Raphael Ornes
- ChoralNet James Feiszli, S. Dakota School of Mines & Tech., USA
- Choristers Guild children’s and youth choirs; Garland, TX USA
- Europa Cantat – European Federation of Young Choirs Marktoberdorf, Germany
- Fasola shape note material; Keith Willard, U Minnesota, MN USA
- Friends of Cathedral Music London, England
- International Federation of Choral Music IFCM
- Lectionary Choral Anthem Project Washington, DC USA
- Musica International Database of Choral Music Starsbourg, France
- Pueri Cantores International: Federation of Young Singers
- Sacred Harp and Shape Note Music Resources Steven Sabol, Washington, D.C. USA