The online communities map on my office cabinet

There’s a small change to the decor around my Quadrant House desk. Yes, [an updated version of the xkcd online communities map](http://xkcd.com/802/) is here. 
It’s a fascinating visualisation of the relative size (in activity) of the various online communities, and even a cursory glance at [the original](http://xkcd.com/256/) shows how quickly this change in this space…