Eastern Orthodox

List of resources for use with Eastern Orthodox
  1. Universal Papal Jurisdiction in the First Seven Ecumenical Councils
  2. Papal Infallibility in the First Seven Ecumenical Councils
  3. Early Church Examples of Popes Deposing Faraway Bishops
  4. Eastern Fathers who Taught Original Sin (And Western Ones) 
  5. The Filioque in the Fathers of the Church
  6. Pope Honorius and Monothelitism
  7. This thread has some good contributions on the ecumenical councils and the popes crowning emperors 
  8. This thread has some good contributions on the repetition of Chrismation / Confirmation and indelible seals in the early Church 
  9. This thread has some good contributions on defending ancient Catholic devotions, e.g. the Sacred Heart