American Carpatho-Russian Diocese of America – Located in Johnstown, PA.
Orthodox Christian Information Center
Orthodox Resources portal – Links to more than 25 Orthodox-related web resources
Orthodox Spirituality (Greek Orthodox Archdiocese of North America)
Orthodox Traditions of Spirituality
Greek Orthodox Archdiocese of America
Russian Orthodox Church (Rússkaya Pravoslávnaya Tsérkov), also known as the Moscow Patriarchate (site in Russian but can use Google Translator to get the gist of the page)
The Office of External Church Relations does maintain an English language page