Can Facebook stay on top by copying another network?

Twitter's president of global revenue, Adam Bain, is the impetus behind Facebook's decision to use hashtags to organize users' content, experts say. Bain's vision for hashtag-based ad sales put Twitter on track to top $1 billion in revenue next year, and Facebook may also make a truckload of money by mimicking Bain's innovation. "So long as Facebook is willing to clone or acquire the best rival innovations, it should be able to continue growing its revenue even as it improves its utility to new and existing users,"

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