1) "Google [...] doesn't give that data to those companies". What about selling that data? That's in line with what you call "being a middle man" I think.
2) "[they] have no incentive to do so". They have no incentive in trumpeting that they are doing it. But without having read their ToS, I'm sure they got that covered.
Of course this is pure speculation and I have exactly zero proof that this is the case. I would actually never have believed those claims 6 months ago, but today, I wouldn't be surprised.
So you admit not even having read the ToS, but now you're ready to believe that it happens, despite the fact that (for example) Google has a fairly straightforward privacy policy that enumerates what they use data for: http://www.google.com/policies/privacy/
As the person who originally replied to you mentioned: it'd be political suicide for Google to provide the information they use for their own ad targeting to others, even for a fee, beyond users' explicit consent. It'd also be business suicide, given that it would allow people to cut Google out of the loop, rather than using Google as the advertising platform.
> 1) "Google [...] doesn't give that data to those companies". What about selling that data? That's in line with what you call "being a middle man" I think.
1) Nobody really actually wants to buy that data in the first place. Companies that buy ads just want to sell you shit, they really, really don't care about you in the slightest. Sorry, but your personal information by itself isn't actually worth a damn thing. Hell, if companies were willing to pay for my browsing history I'd sell it to them myself.
2) Why on earth would Google sell one of its advantages? If Google sold data Facebook or Microsoft would buy all of it in a snap and Google would be screwed.
2) "[they] have no incentive to do so". They have no incentive in trumpeting that they are doing it. But without having read their ToS, I'm sure they got that covered.
Of course this is pure speculation and I have exactly zero proof that this is the case. I would actually never have believed those claims 6 months ago, but today, I wouldn't be surprised.