Before Snapchat, Instagram or Facebook, the Polaroid SX-70 as social network, envisioned by Edwin H. Land:

“It turns out that buried within us–God knows beneath how many pregenital and Freudian and Calvinistic strata–there is a latent interest in each other; there is tenderness, curiosity, excitement, affection, companionability and humor; it turns out, in this cold world where man grows distant from man, and even lovers can reach each other only briefly, that we have a yen for and a primordial competence for a quiet good-humored delight in each other; we have a prehistoric tribal competence for a non-physical, non-emotional, non-sexual satisfaction in being partners in the lonely exploration of a once-empty planet.”

http://theliteratelens.com/2012/12/27/brilliance-sex-hubris-the-story-of-polaroid/