How will Facebook monetize Messenger? Why, ads, of course
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Facebook introduced this service for vendors, naming it Business for Messenger, and on the surface it is a pretty good experience - you can speak directly to someone and get real-time info about your order or inquiry in an informal chat session. The businesses, however, will be able to ping you back, the inside document shows, once you have initiated a chat session with them, and serve you messages that can quickly turn to spam or advertising, if Facebook is not careful to reign in the content.

We all know that it takes only one unbeatable promotion to get people to reply in the vast majority of the cases, though. We'll see how this attempt to monetize the Messenger's 800 million users pans out, but for now it seems that Facebook's ad-targeting approach is pretty subtle, so there's hope it won't turn into an endless spam feed.
source: TechCrunch
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