briansolis.com/2010/09/the-social-network-ecosystem-vs-egosystem/
Of all the social networks competing for our online persona and social graph, Twitter is special. The culture and self-governing rules of engagement shaped by the “me” in social media, create a personalized experience that looks and feels less like a “social” network and instead, creates an empowering information exchange. Twitter is at the heart of the Web’s evolving egosystem and its archetype is powerful and quite understated. For better or worse, Twitter introduces the notion of notion of popularity,...