facebook is useing you

this article is about how people check what you like and post ads and deals on your facebook page so that the person that made  facebook can make momey. also they talk about how they most ads to make people buy gthings from them and for the company to make money.it also states that if you like something on facebook or on yor email they can avertize on that page and on the other pages that you go to. i think that it's wrong for feacebook to sale your information to tother company just to make money.the company that do that should be served with a law suit because that is an invation of priveises . i also think that the computor company should serve them wit a law suit as well because they are messing up thir computer