That's how we get to blackboard economics. These business models are related and interlinked. You can't separate them and still have a good model of reality. D

That's how we get to blackboard economics. These business models are related and interlinked. You can't separate them and still have a good model of reality. Data is constantly growing new uses, which can go from economically marginal to central very quickly. Data gathering just isn't something that is a distinct market all on its own. The same dataset could feasibly power an ad widget, recommendation playlist or whatever.