Associations
- Association of Church Musicians in Philadelphia
- National Association of Pastoral Musicians
- The American Guild of Organists — National
- The American Guild of Organists — Philadelphia Chapter
- The American Guild of Organists –Delaware Chapter
- The American Guild of Organists – Southwest Jersey Chapter
- Church Music Association of America
Music Sites
- Choral Public Domain Library
- Guide to Singing the Propers in English–A Resource for Entrance and Communion Antiphons
- IMSLP – Petrucci Music Library
- ICEL Chants
- Hymnary.org: a comprehensive index of hymns and hymnal
Music Publishing Companies
- GIA
- Morningstar Music
- Oregon Catholic Press
- World Library Publications (now a division of GIA)