Did you know that Google never, ever, throw anything away.
A classic example is the locations or maps application used in Android smartphone - you can see how much data they have on you by logging in here (using same account details from your phone) and clicking through the location history.
https://maps.google.com/locationhistory/b/0If you dont use Google maps then there will be nothing to see. However, if you use them a lot you might be surprised at what's there.
The level of accuracy is such that they actually tracked me through several rooms in my house and then showed when I went out to the shed in the back garden...
JF
