You can bet big bro and others are using data you have never even know was being collected. One auto insurance company is now suggesting you plug a monitor into your cars data port for 30 days. Then send it to them with a recording of your driving habits and they base your payments on the factors monitored. Just one example of many, ever wonder why your TV sat. box must be hooked to a phone line even if you do not download extra programs? The TV sat company collects all your viewing habits and sells and trades this info as demographics and marketing info. It goes on and on and on.
Here is link to insurance co. and the recording device ...
Progressive Snapshot hardware details revealed - SlashGear