• Disciples of Christ Home Page
• Association of Lutheran Church Musicians
• Fellowship of United Methodists in Music and Worship Arts
• Presbyterian Association of Musicians
• Association of Anglican Musicians
• National Association of Pastoral Musicians
• Hymn Society in the United States and Canada
• American Guild of Organists
• Handbell Musicians of America
• Choristers Guild
• National Association for Music Education (a division of Christian Board of Publication)
• LicenSing (copyright cleared music for churches)
• The Cyber Hymnal
• The Choral Public Domain Library
• Worship and Church Music
• Gracenote (CDDB music recognition database)
• Church Music Publishers Association
• CCLI (Christian Copyright Licensing International)
• Harry Fox Agency (for mechanical licensing)
• Comprehensive List of Hymns (Hymnary.org)
• Church Music Institute

Publishers, Distributors, Libraries

• Augsburg Fortress
• Cokesbury
• MorningStar Music Publishers
• Nazarene Publishing House (Lillenas)
• J&J Online (Jeffers)
• Pepper Music Network
• Music Publishers' Association
• Rene Clausen Music Company
• Roger Hellwege (DoC composer-digital resources)