Josh Constine writing about Facebook Exchange, a new way to show users ads:
For example a travel site could serve ads about a flight to Hawaii to someone who almost bought a flight on their site. Advertisers might pay big premiums for highly-accurate targeting. Users will be able to opt out of Facebook Exchange via third-party demand-side platforms, but they can’t opt out of the program completely from within the social network.
So this program is opt-out only, but the user can only opt-out from each advertiser by clicking a little
x when they see the ad? What could go wrong?
One thing that Constine also notes is that this also a good way to show ads for things that are currently happening, like TV programs about to air. This is all really neat from an advertising and technology stand point, but this sounds like a horrible thing for users. It’s like you need to actively monitor what you do, or you may begin to see ads for that crap everywhere.