Everyday, over a billion photos are posted on social media sites. Marketers are always trying to find ways to be able to use them to their advantage and now they can. Ditto, a photo analytic provider, turns insight into action by unlocking brand data hidden inside the billions of photos uploaded everyday. Their software scans photos for brands and analyzes the facial expressions of those photographed. That information is then used to create profiles that brands can use towards targeted advertising. Big names such as Coca-Cola, Budweiser, and Adidas are already taking advantage of the program. To learn more about Ditto and what privacy campaigners are saying it means for users, click here.