Jay Jamison writes on Techcrunch: "Interest-based social networks have a markedly different focus and approach than Facebook.
The Pinterest, Thumb and Foodspottings of the world enable users to focus and organize around their interests first, whereas Facebook focuses on a user’s personal relationships.
Facebook offers us a social utility to deepen social connectivity with our existing social graphs, while these new interest-based social networks enable users to express their interests in new, engaging ways and offer authentic, high value connectivity with new people we don’t already know.
So if interest-based social networks focus first on an individual’s interest graph and Facebook centers on an individual’s social graph, which service will be the winner?
Humans are inherently social creatures, and we define ourselves both by the people we know and our interests. We make decisions about where to eat, what to buy, where to visit, etc. based on a complex matrix of social relationships, past experiences, location, long standing interests and future goals. Today’s platforms approach our lives from different angles but both are integral to how we define ourselves and interact with the world around us."