mikejuk writes: Six degrees of separation is the, already well established, idea that any individual is connected to any other via six network nodes. New research has discovered that the average between Facebook users is just three and a half: "We know that people are more connected today than ever before. Over the past five years, the global Facebook community has more than doubled in size. Today we're announcing that during that same time period, the degrees of separation between a typical pair of Facebook users has continued to decrease to 3.57 degrees, down from 3.74 degrees in 2011. This is a significant reflection of how closely connected the world has become." This may all be true and Facebook makes us better connected, but it leaves the question of the quality of the connections open. Are Facebook friends anything like real friends?