Antiochan Orthodox Musical Practice
- Modern history of the music used in the Antiochan Orthodox Church in America
- http://www.antiochian.org/music/

Divine Liturgies Music Project
- More than 1000 pages of Byzantine music transcribed into Western notation according to the style of chanting used on the Holy Mountain. Hymns are provided in Elizabethan English, Modern English, and Greek.
- http://stanthonysmonastery.org/music/Index.html

Liturgical Sheet Music in English
- Free arrangements of Russian Orthodox Church music available in .pdf format.
- http://music.russianorthodox-stl.org

Society of St. Romanos
- Dedicated to professional performance of Orthodox Church music. Russian, Greek, and Ukrainian musical traditions are included in the repertoire.
- http://www.societyromanos.org

Oh Pure Virgin
- Modern arrangement by composer Ioannidis Nikolaos. Includes audio file and Greek text.
- http://homoecumenicus.com/ioannidis_pure_virgin.htm

Choir of the Church of St. Prophet Elijah of Kiev
- The spiritual compositions, hymns, psalms, also Ukrainian and Russian folk songs in performance of the choir. Includes ordering information for CD.
- http://artmam.com/gift/cd/index.html

Pan-Orthodox Society for the Advancement of Liturgical Music
- PSALM is dedicated to the advancement of Orthodox Christian liturgical music and chant. Includes membership information and resources.
- http://www.orthodoxpsalm.org/

Sirin Ensemble
- Vocal ensemble performing early Russian Orthodox chants and spiritual verses. History of the ensemble, repertoire description, wav and mp3 files of Orthodox church and folk chants. [English/Russian]
- http://www.sirin.ru/

Troparia & Kontakia Index
- A complete calendar of eastern saints, with troparia and kondakia.
- http://users.netmatters.co.uk/davidbryant/C/TropKon/TP.htm

Psaltic Notes
- Introduction to Byzantine Music theory and practice by Fr. Constantine J. Terss. Beautiful site with many Psalms.
- http://users.forthnet.gr/ath/frc/

Ancient Hymns for Modern Times
- Hymns of Byzantine Chant by Katerina Sitaras Makiej, Presvytera, in English and Greek. Audio sample, ordering info on site. CDs and tapes include hymns from the Orthodox Christian worship services. Psalms and inspiring prayers set to music and chante
- http://www.ancienthymns.com

Musica Russica
- Source of Russian choral music. Provides descriptions, ratings, and sells many Russian Orthodox church music CDs. Also sells sheet music.
- http://www.musicarussica.com/

Hymns from the Liturgical Tradition
- Lots of QuickTime and RealAudio files.
- http://www.goarch.org/access/byzantinemusic/

Eastern Orthodox Liturgics at Liturgica.com
- Presents a description of liturgical worship in the Orthodox Church, with links to CDs and books for purchase.
- http://www.liturgica.com/html/litEOLit.jsp?hostname=liturgica

Byzwriter 1.0 Software
- A system for writing the Byzantine Music Notation created by Gezerlis G. Velissarios (PHD student, University of Athens, Greece.) Windows 95 and Word 6 or 7 (Greek Version) required.
- http://www.di.uoa.gr/~gbelis/

Monumenta Musicae Byzantinae, Copenhagen
- The MMB microfilm collection contains more than 680 items for use by scholars of Byzantine chant. Housed at the University of Copenhagen, Institute for Greek and Latin
- http://www.igl.ku.dk/MMB/Welcome.html