I found this article today via the crystalclear list I follow: http://www.infoq.com/articles/agile-kanban-boards
Several of the described information radiators will already be familiar if you’ve been following agile. The most novel – one I have no choice but to love – is the “Smiley Calendar” 😉 Seriously, getting feedback on team morale this way seems like a great idea; it gives team members who don’t like to complain a way to quietly raise a flag when morale starts to suffer. Have any of you used one?