I found this at hotca.org. These instructions highlighted in blue font are not only applicable to the clergy but also to members of the laity, for we represent Orthodox Christianity to all we meet as our words can enlighten people or turn them away from Christ.
http://hotca.org/component/content/arti ... the-clergy
In their electronic communications clergymen:
1. Shall not use improper or profane expressions in any way;
Shall not use improper allusions or comment favorably on provocative material presented in videos, pictures, documents, or any other internet media;
Are not permitted to involve themselves in political issues, taking a position for or against political figures. It is permitted to comment on politicians’ specific acts or words from an ecclesiastical perspective. This, however, must be done by means of competent and theologically documented essays and not by the republication of the political opinions or comments of others or through commentaries of such articles found on other websites.
All clergymen are obliged to bear in mind at all times that they are called to give a good witness and to be an example for the laity. For this reason, they must act in accordance with their vocation, using the Internet principally as a ministry of good witness and confession.
Clergymen who violate these rules shall be punished, firstly with the suspension of their privilege to use such media. Clergymen that persist in disobedience to the Church’s hierarchy shall be judged in accordance with the canons of the Church. It is the responsibility of each Ruling Hierarch to provide further clarification of the above.