A small program runs on your computer capturing information about all the servers you visit and how much data moves between each server and your computer. None of this information is made public or shared in any way, instead it's used to grow a little unique world - a kind of 'walk-in graph' of your network use. Uploads make hills and downloads valleys, their location determined by a coordinate system generated from numbers in the IP itself. Plants are also grown for each protocol type detected by the software; if you visit a website, an 'HTTP plant' is grown. If you share some files via eMule, an 'eMule plant' is grown etc.