3 ms·

Same can be said about personally-targeted advertising in general. Really, how more effective is it?

• usrusr 8y ago
  For exotic niche products, incredibly. On Facebook, you can advertise to golfers who don't subscribe to a golf magazine. This is new and valuable (to everybody except the publishers of golf magazines, who suddenly have to face competition in golf-specific ad-spending). But if you are selling washing detergents, even the tiniest premium for targeted over untargeted would be a waste.