Too many sub forums as it is.
If I had to redo it I would cull:
Adding value - Split it into Renovations and another for Developments (granny flats can go in here)
Property Management - Cover this is property investment other
Innovative techniques - covered in property investment other or Developments
Buying and selling process - covered in property investment other
Property market economics - covered in property investment other
info resources - covered in property investment other