"The central bank stands at the forefront of the world’s hunt for new economic indicators, analyzing keyword counts for everything from aerobics classes to refrigerators -- reported by Google almost as soon as the queries take place -- to gauge consumer demand before official statistics are released. The Federal Reserve and the central banks of England, Italy, Spain and Chile have followed up with their own studies to see if search volumes track trends in the economies they oversee. "
Telegraph UK article
Big Brother is really watching. – Wes