St. Tikhon's Orthodox Theological Seminary

Music on the OCA Website — Liturgical music downloads for parish use
ROCM — Russian Orthodox Church Music (in Russian and English)
PSALM — Pan-Orthodox Society for the Advancement of Liturgical Music
KLIROS — Moscow Orthodox Church Conductors' Courses (in Russian and English)
Notnyi Arkhiv — An archive of Liturgical music scores compiled by Boris Tarakanov
Orthodoxia — Library of Orthodox Church music scores (in Russian)
Podoben.com — English adaptations of Orthodox Liturgical music
Ivan Moody's List of Orthodox Resources on the Internet
St. Romanos the Melodist Society — Russian Orthodox music in the English Language
TRIO — Scores and Liturgical Texts (in Russian)
Octoechos (Osmoglasie)
Spirit of Orthodoxy Choir — Aleksei Shipovalnikov, Musical DIrector
Byzantine Chants — Audio files from GOA Website
Carpatho-Russian Chants