The advantage is that control over what ads were very costly because the company bought ad space to be able to assign the ad text to say, what to say, how and when to send the news to anyone that can control and monitor, as expected as much. Another advantage is that can be used to communicate with the audience, both at the country level, or focused on certain subgroups in particular may be. And apart from that, though, the ads will have to invest a lot of money. But because of the reach of as many people's news. Therefore, the cost of access per person (cost per contact) is the lowest compared to other tools.
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