The Wall of Opportunities is the big LCD screen in the hallway of TS53 positioned up-left when you enter. It allows you to share brief messages with whoever passes the hall way or sits in the lounge on level 1. Only organisations or people linked to SBE can have their message published on the Wall of Opportunities.
In the end, the WoO- editor decides what can be published on the wall and what not. So if you are in doubt, please contact him.