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. The different approaches of these interest-based services are distinct from Facebook, and they are powering the massive growth and engagement we are seeing in these new services.

via Beyond Facebook: The Rise Of Interest-Based Social Networks | TechCrunch.