We put all the workshops in the printed program, which means they better happen ;) More seriously, we have room for almost all the workshops so we decided to hold them all. Alex Osterwalder will do his workshop at his office (500m from the University) so that frees one room, and the other 3 workshops will meet at the cafeteria and find a room (there are plenty at the university).
I had to choose who gets what room very arbitrarily and with unfinished registrations. I tried to do it in the most logical way, i.e. the most registered participants the bigger the room. Sorry if you end up having a smaller room than you deserve.