> Whether you consider that equivalent to selling your data is a separate question. You'll find a lot of disagreement here about it.
I can't remember previously seeing an argument that this is equivalent. Sharing one quality (in this case the ability to target users on Google's platform based on data Google has collected) does not make two things equivalent. Data passing between hands is obviously different than one entity providing an interface for another entity to utilise data without having it themselves, as in the former case you are now trusting both entities to safely store it which increases the chance of public disclosure (or private exposure that results in negative personal effects such as embarrassment and/or blackmail).
I can't remember previously seeing an argument that this is equivalent. Sharing one quality (in this case the ability to target users on Google's platform based on data Google has collected) does not make two things equivalent. Data passing between hands is obviously different than one entity providing an interface for another entity to utilise data without having it themselves, as in the former case you are now trusting both entities to safely store it which increases the chance of public disclosure (or private exposure that results in negative personal effects such as embarrassment and/or blackmail).
HurpaDurpaEdit: s/latter/former