And you've heard of Google Analytics, the dashboard for website usage statistics.

WSJ: Spying on Your Buying | Marvels

Ann Robinson, of price comparison website Uswitch said some customers could ration their energy usage as a result.

BBC: Scottish Power to raise gas and electricity prices

The Highland Liftshare website has been launched as part of Transition Black Isle's Million Miles car usage reduction project.

BBC: Caley Thistle and County fans encouraged to car share