From Life Together, some adapted blogging rules for Christians:
Hold their tongues, refusing to blog or comment uncharitably about a Christian brother or sister;
Cultivate the humility that comes from understanding that they, like Paul, are the greatest of sinners and can only blog in God’s sight by grace;
Read “long and patiently” so that they will understand their fellow Christian’s need;
Bear the burdens of their brothers and sisters in the Lord, both by preserving their freedom and by forgiving their sinful abuse of that freedom;
Blog God’s word to their fellow believers when they need to hear it;
Understand that Christian authority is characterized by service and does not call attention to the person who blogs.