Earlier quoted context omitted.
Apple also makes most of it's money by selling phones, not user information...
>Apple also makes most of it's money by selling phones, not user information... Google is the advertiser. I'm surprised how often people make this mistake. They don't sell user data to other advertisers. This not only goes against their terms of service, but also makes no business sense. Why would they give up their best signal for targeted ads?
1) never sell that data at any time in the future (perhaps if they should suffer a bad year financially), and
2) that they will be able to retain control of that data (no leaks, no employees that abuse access, no attacks from other people interested in the data).
Without these criteria, saying anything about what Google "re4ally does" with their data is a best describing the past and maybe the present. Why does everybody act as if current business plans are some sort of Truth that we can rely on? Plans change, management changes - unless it's in writing on an actual contract, it's just wishful thinking.
Of course, this doesn't matter when talking about Google and their data. We already know they give data to the government because they are part of PRISM[1].
As for advertisers, the scenerios "Google gave customer data to an advertiser" and "Google did the targeting work for the advertiser as a (paid) service" differ only in minor details. The end result is the same. There numerous creative ways the data can be moved by proxy or as a service.
[1] https://upload.wikimedia.org/wikipedia/commons/c/c7/Prism_sl...