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What previous methods do you mean? As for data, I guess I can't really see it all, it's inside Facebook. But spending money on the wrong target groups seems to
by lordnacho 5y ago
What previous methods do you mean? As for data, I guess I can't really see it all, it's inside Facebook. But spending money on the wrong target groups seems to not work, according to my experience. So it does seem like FB collects useful data for targeting ads.