Big data is fueled by an army of secret agents.
Everything you click on, hover over, buy, sell, or view is now being tracked by 1000s of companies. Your presence on social media is also being tracked and analyzed. The reason – your data feeds the online ad industry which clocks in at $30 billion + per year.
All this tracking is invisible. Like ghosts in the machine, a silent army of cookies, trackers, sensors, beacons, and widgets is recording your doings across the web. To see who they are, download apps like Ghostery or DoNotTrackMe. And for a guided tour, attend the short lecture below: