My father, a professor of communications, is convinced that Twitter is a tool for narcissists and exhibitionists. The little I knew of the medium seemed to support his theory. Then I joined the conversation. (…) Whether I’m sending a tweet in response to someone who has asked a question or retweeting someone’s positive feedback, I’m making a connection and building our community. And that’s the key. What Twitter enables us to do is listen, contribute, encourage and make connections. Take that, Dad.