couchtripper

Geolocation is the identification of your actual geographic location in the real world using information that your computer or cell phone/mobile phone sometimes unknowingly supplies.

The reason for this practise is - as it always is - money. Because there's money to be made if a company knows what your surfing habits are and how they can couple that knowledge to the place where you live or are at that moment in time. These companies can use targeted advertising to offer you free stuff or rebates in a shop near you.

One visit to a booby-trapped website could direct attackers to a person's home, a security expert has shown.
The attack, thought up by hacker Samy Kamkar, exploits shortcomings in many routers to find out a key identification number.
It uses this number and widely available net tools to find out where a router is located.
Demonstrating the attack, Mr Kamkar located one router to within nine metres of its real world position.