It will be interesting to see how advertisers take advantage of this data without alienating people. A lot of people don't mind seeing a targeted ad on Facebook since they have a relationship with them but would be disturbed to see a very target ad in another app. Target saw this when trying to deploy their targeting to pregnant women, they had to camouflage their pregnancy product coupons with other random ones as "some women react badly" [1].
Also article claims that Facebook isn't selling your data but aren't they really if advertisers are going to get to set a cookie for usual advertising accounting of reach and view caps? E.g. Buy campaign targeting users with qualities X,Y & Z and then set a cooking on users who saw the ads so now I know they are all X,Y & Z.
Either you just happen to see a lot of ads all over the web for bars and day trips in Thailand after you did a Facebook check-in at the airport saying you're on your way to Thailand
Or
The ads will be similar to what you see on FB, eg your friend Jonathan likes the new diet coke, why don't you try some, john? With the ad clearly outlined as not being part of the site with a "ad delivered by Facebook" disclaimer and clear FB styling.
Also article claims that Facebook isn't selling your data but aren't they really if advertisers are going to get to set a cookie for usual advertising accounting of reach and view caps? E.g. Buy campaign targeting users with qualities X,Y & Z and then set a cooking on users who saw the ads so now I know they are all X,Y & Z.
[1] http://www.nytimes.com/2012/02/19/magazine/shopping-habits.h...