St.Mary of Egypt Orthodox Church Library
- Library of Orthodox Christian texts, including St.Dionysios the Areopagite, St.John Chrysostom and extensive online version of the Ante-Nicene, Nicene, and Post-Nicene Fathers.
- http://stmaryofegypt.org/library.aspx

Eastern Orthodox Spirituality
- Writings and commentaries maintained by Fr Demetrios Serfes.
- http://www.serfes.org/orthodox/

Orthodoxy and Islam
- Holy Fathers about Islam, Articles of Contemporary Orthodox Authors, Orthodox Mission in Muslim World, Works of non-orthodox Missionaries, Testimonies of Muslims, who became Christians, Materials about History of Islam
- http://www.um-islam.nm.ru/indexeng.htm

Protopresbyter Alexander Schmemann
- A selection of writings, photos and memorials to Father Alexander Schmemann, the well known and widely respected former Dean of St.Vladimir's Seminary.
- http://www.schmemann.org/

Russian Orthodox Cathedral of St. John The Baptist
- Washington, D.C. Founded by St. John of Shanghai and San Francisco. Includes parish information, with articles and information on various topics.
- http://www.stjohndc.org/

Holy Trinity Orthodox School.
- School of Orthodox Theology, an extension of Holy Trinity Monastery, Jordanville. The school is managed by Bishop Alexander of the Russian Church Abroad. Has texts in Russian, English and Spanish
- http://www.holytrinitymission.org/

St. Vladimir's Russian Orthodox Library
- Articles and full-length books in English on Orthodox theology, spirituality, and prayer. Also features a collection of epistles from the Russian Orthodox Church Abroad.
- http://www.stvladimirs.ca/library/

Myriobiblos
- The online library of the Church of Greece.
- http://www.myriobiblos.gr/texts/english/index_en.html

Orthodox Research Institute
- A source of resources (biographies, encyclicals, homilies, and articles) on the Orthodox Church and the Orthodox Faith.
- http://www.orthodoxresearchinstitute.org/

GreekOrthodoxChurch.org
- Collection of articles and links.
- http://www.greekorthodoxchurch.org/

Orthodox Christian Booklets
- Articles available in both HTML and downloadable format on topics including faith and life, scripture, prayer and sacraments, saints, and theology.
- http://www.fatheralexander.org/

16th Century Lutheran and Orthodox Dialogue
- Examination of the relationship between Wittenberg and Constantinople during and after Luther's time, with special emphasis on the Augsburg Confession.
- http://www.stpaulsirvine.org/html/lutheran.htm

Catalogi Codicum Montis Athonis
- The Philotheou Monastery Project (Mount Athos Greek Manuscripts). Fascinating history and material from this a monastic library which has been intact since 1141.
- http://abacus.bates.edu/~rallison/

Christian Roman Empire
- Explains in detail the West's misconception of Christianity. Includes articles by Clifton Fox, Fr John Romanides, his emminence Met. Hierotheos Vlachos, and others.
- http://www.romanity.org/cont.htm