> Except, small businesses can still advertise to their customers. They can still use all of the information Facebook knows about its users--like their gender, age, location, and interests, to show ads. If you're a small business, none of that changes. The only person that really stands to lose seems to be Facebook.

I'm not sure that is true: Facebook would argue that with tracking users interests are better understood. A small model railway business can advertise to people who aren't just members of facebook railway groups and visit railway pages on facebook but also those who are visiting model railway websites outside of facebook too (that have FB tracking pixels). When people are visiting websites reviewing a new engine and start clicking on that businesses adverts for the engine, FB will show the ad to more of people who have visited those webpages too, making the ad more cheaper as you're not competing with other ad purchasers.

[EDIT] I'll still be saying no to facebook tracking.