Most social networks own and monetize your social graph. It is almost never private once you have shared some of it and often leveraged to bring more people to the platform. In the early days of Facebook, during a pivotal era Mark Zuckerberg was obsessed with mapping the world “social graph”. In February 2010, Facebook acquired Octazen. Octazen was the industry leader in “Contact Importing”technology. They provided a “white-label” service (API) that allowed hundreds of other startups and soci...

Most social networks own and monetize your social graph. It is almost never private once you have shared some of it and often leveraged to bring more people to the platform. In the early days of Facebook, during a pivotal era Mark Zuckerberg was obsessed with mapping the world “social graph”. In February 2010, Facebook acquired Octazen. Octazen was the industry leader in “Contact Importing”technology. They provided a “white-label” service (API) that allowed hundreds of other startups and soci...