Ecumenical Patriarchate of Constantinople

Greek Orthodox Archdiocese of Thyateira and Great Britain    

Introduction to the Orthodox Church

Guide to Church Etiquette

Orthodox Christian Information Centre

Orthodox News

Orthowiki (online encyclopedia)

Calendar of the Lives of the Saints

Daily Lives of the Saints

Ancient Faith Radio

The Orthodox Fellowship of Saint John the Baptist  

International Orthodox Christian Charities 

Friends of Mount Athos
Greek Orthodox Youth of Great Britain 
Saint George Orthodox Information Service