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We're in the middle of an exciting transition as social media and the mainstream begin to overlap in all sorts of interesting ways: this underlines our belief that social media isn't some marketing fad, but rather a fundamental change to the way we consume and interact with content. We've been covering this transition for four years, from the rise of social networking to the birth of the "social media" movement as people began to use these tools of personal connection to pass content around the web.
The fact that CNN is paying close attention to social media's rise - including the addition of far more social interaction on its site - is surely another step forward.