Ancient Faith Ministries: https://www.ancientfaith.com

Orthodox Christian Network:  https://www.myocn.net

Antiochian Orthodox Christian Archdiocese of North America:  https://antiochian.org 

Greek Orthodox Archdiocese of America:  https://www.goarch.org

Orthodox Church in America:  https://www.oca.org

Saint Vladimir's Orthodox Theological Seminary: https://www.svots.edu

International Orthodox Christian Charities:  https://www.iocc.org

Orthodox Christian Mission Center:  https://www.ocmc.org

Orthodox Peace Fellowship:  https://www.incommunion.org

Orthodox Christian Prison Ministry: https://www.theocpm.org

Metropolitan Kallistos Ware:  Kallistos Ware (Author of The Orthodox Church) (goodreads.com)

Metropolitan Hilarion Alfeyev:  Amazon.com

Frederica Mathewes-Green:  https://www.blogs.ancientfaith.com/frederica