I was also astonished at how many ad profiling companies Ghostery revealed. It's not necessarily targeted advertising that people should be concerned about; it

I was also astonished at how many ad profiling companies Ghostery revealed. It's not necessarily targeted advertising that people should be concerned about; it's gradual profiling by companies that have the potential to affect insurance premiums, mortgage applications, and a whole host of other real-world interactions with corporations who profile using data sourced online. This article from 2010 in the WSJ is revealing; it hints at how companies have long been itching to use online data -- such as which articles you read -- to categorise populations into neat pigeonholes: http://online.wsj.com/article/SB10001424052748704648604575620750998072986.html http://online.wsj.com/article/SB1000142405274870464860457562...