Have you ever come across an ad on Facebook that seemed a little too “up your alley”? You wonder, “How did Facebook know I love to travel?” or “How did they know I was interested in toilet seat warmers?” Needless to say, this can cause some of us to worry.
You may not know this, but while you’re logged into Facebook, the site is able to track what other sites you visit. Even when you’re logged out, Facebook can see any site you visit that has a Facebook “like” button. Once Facebook gathers information on you, they list it in your ad preferences, which you can actually see.