I did a video showing the geographical spread over time of authorities buying stuff through the EU public procurement system. We managed to hijack all the contracts some time ago and the addresses of the authorities and the winning contractors have now all been geocoded. You can also explore the data on the TEDBot website.

The animation starts in january 2003 and ends at the end of 2007. You can actually see the EU expansion happening in May 2004 with dots spreading east. 10 14 day intervals are shown each second. The animation was generated with Processing.