So, here’s a term that’s new to me:
Alistair.Cockburn.us | Information radiator: "Coined around 2000 while standing in a Thoughtworks office looking at all the paper on the walls around me, ‘information radiator’ refers to a publicly posted display that shows people walking by what is going on. Information radiators are best when they are big, very easy to see (e.g. not online, generally), and change often enough to be worth revisiting."
(Via this GitHub project, which I found by following a link from ADN@berg, which was retweeted by ADN@dalton )