L' INTELLIGENCE CYBER par Jean-Paul Pinte

Facebook is a great utility if you want to stay in touch with friends and family, share photos, and see what other people are up to in their lives.
It’s free to use, of course, but that doesn’t mean it comes without a price. If you’re using Facebook, you’re giving the company a ton of information about yourself which it is selling to advertisers in one form or another.

Read more: http://www.businessinsider.com/block-companies-tracking-you-on-facebook-2014-1#ixzz2tkjeuJJT