The rise of these new interest based social networks does not really threaten Facebook, in fact, they are more likely to benefit Facebook. Specifically, Facebook has evolved itself brilliantly into not only an end user application drawing near to 1 billion accounts but also a robust, powerful platform other apps can leverage in order to drive more users to their services.
Pinterest, Instagram, Fab, and many others have adopted Facebook’s Timeline API for precisely the reason of wanting to raise awareness of their services and drive more users to their sites. As these new services grow, more content gets pumped back to Facebook, Facebook’s platform gets more robust. Wash, rinse, repeat… Facebook’s positive feedback loop gains more momentum, and becomes more powerful.
Source : TechCrunch
