(…) some marketers argue that companies should win key opinion makers in their respective sphere of interest and confidently wait for the rest of the population to ‘tip’ and follow that lead. Network theorists would call these people ‘hubs’. Gladwell calls them ‘connectors, mavens and salesmen’.
[H. Copeland (2003) “Blogging’s unique advertising metrics: Passion and hubness” BlogTalks: European Conference on Weblogs Ed. Thomas N. Burg, Norderstedt: Books on Demand GmbH, p. 25]