It may raise hackles to think that U.S. intelligence officials might be monitoring your telephone and Internet communications, but for most of us it’s only the marketers who are really interested in our everyday online activities. And with many billions of dollars at stake, companies are increasingly turning to more sophisticated techniques to identify potential clients and deliver relevant advertising.
Many Internet advertisers rely on cookies, digital code stored on your browser. Some websites place multiple cookies when you visit, allowing them to track some of your activity over time (you can see who is tracking you by installing an application such as Ghostery or Abine’s “DoNotTrackMe”).
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