As the saying goes: “if you aren’t being sold, you are the product.” Nowhere is this more true than on Facebook.
The social network boasts nearly two billion users, and offers a staggering amount of free content that keeps most of us engaged hours each day. And in the future, it’s looking to further that effort to keep us on-site even longer, or in other Facebook-owned properties like Messenger, Whatsapp, and Instagram.
The more time Facebook keeps users on the site, the more data it can collect on each of us. This data is what brings advertisers to the platform, and ultimately what puts dollars in Facebook’s coffers. This isn’t lost on Mark Zuckerberg. In order to increase our chances of interacting with ads — thus fueling advertiser demand that puts money in Facebook’s coffers — it has to be pretty damn good at places each of us into neat little boxes.
http://www.businessinsider.com/how-to-see-what-facebook-knows-about-you-in-your-ad-preferences-2017-4
