I would not hesitate to say I was addicted to the Internet in the first two years. It can be addictive, and things not taken in moderation have negative effects. But the alarmism around 'Facebook is changing our brains' strikes me as a kind of historical trick. Because we now know from brain science that everything changes our brains.
The web's democratic in one way and distinctly undemocratic in another way. And I think a lot of the confusion about the political ramifications have to do with that one word having so many meanings. So, it's democratic in that it quite literally delivers power to the people; it, it essentially opens up participation in the public's mind.