On Twitter and in the Workplace, It's Power to the Connectors - Rosabeth Moss Kanter - HarvardBusiness.org

In the World According to Twitter, giving away access to information rewards the giver by building followers. The more followers, the more information comes to the giver to distribute, which in turn builds more followers. The process cannot be commanded or controlled; followers opt in and out as they choose. The results are transparent and purely quantitative; network size is all that matters. Networks of this sort are self-organizing and democratic but without any collective interaction.