Google doesn't have an ad-business, it is an ad-business.
You can't separate Google from its ad business. All of their major products exist in service of the ad business, search, inbox, even Chrome. If the services don't exist to help build a profile of you, they exist to help build a profile of web traffic and detect ad-fraud, or to simply shape the landscape into one that isn't hostile to google's ads.
You can't separate Google from its ad business. All of their major products exist in service of the ad business, search, inbox, even Chrome. If the services don't exist to help build a profile of you, they exist to help build a profile of web traffic and detect ad-fraud, or to simply shape the landscape into one that isn't hostile to google's ads.