Tracking Airport Status
This is a link from the NYTimes that shows an up to date visualization of the major airports in Europe along with their flight statuses. They can either be green (Only flights to or from affected areas canceled), yellow (Some flights operating), or red (All flights canceled). This type of color coordinating is a typical heuristic for signifying whether something is working (green), partially working (yellow), or not working at all (red). This graphic also links the users to the airports homepage as well to get even more information about a certain airport. The graphic is also updated in real time so the image you see today may not necessarily be the image you see tomorrow, but from here on out it looks like all the airports will remain green.