Destination: The Free Copts State
My favorite place there is Father Abdel Massih Bassit Abulkheir's forum. Fr AbdelMassih is an apologetic who has a wonderful way of explaining so many misconceptions in the Christian faith.
The forum is predominantly in Arabic, but there is an English forum which is really picking up speed.
I have been having an absolute ball over there, sharing ideas and participating in lively discussions.
Worth a visit especially if you read and write Arabic.