Chances are, you’re on Facebook right now. About 1.7 billion people—almost a quarter of the world’s population—actively use the social media platform . And though it’s free, Facebook isn’t charity. It has a product, and that product is you and me. The company cleared a tidy $5.
http://www.wired.com/2016/06/facebooks-research-ethics-board-needs-stay-far-away-facebook/