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Social media have transformed corporate communication practices: Tools such as Twitter and Facebook allow organizations to speak directly to and solicit responses from the public quickly and affordably. But the original intention of these media were to connect friends, not customers or employees; for businesses, accustomed to managing all aspects of communications (and muting dissent), social media can be an awkward fit.

As the Internet plays a larger role in governance, campaigns and activism, the debate continues about how social and digital media are changing politics. Ongoing research is addressing topics such as whether or not the Internet is leading to increased political polarization — the tendency of like-minded individuals to cluster even closer together in their habits and viewpoints.