Sony stepped into all sorts of trouble with thier copy protection scheme on CDs. Although they claim the damage is minimal, the folks over at Doxpara Research claim otherwise. Since Sony’s scheme calls home, the Doxpara folks figured there would an entry in DNS servers around the world showing the call home. Doing an analysis, they’ve identified 568,200 nameservers have been witnessed a phone back home to Sony’s servers.
The interesting part about this is that mapped it! There’s also a Europe and Japan. The site specifies how they mapped the data.
GIS turns up in all sorts of interesting places!