Ads in Messenger could be Facebook's next big thing

Facebook is reportedly planning a massive new business initiative that could eventually drive billions of dollars in advertising revenue. During the first half of this year, the company plans to sell ads within its Messenger application, which has 800 million monthly active users (MAU), according to TechCrunch. Such a move wouldn't be the first time Facebook sold ads outside of its core social networking app, but it would represent the largest audience (outside of the Facebook app's user ba