From over at Design Interactions comes an intriguing look at the social network you could've had in the 1980s:
I can't work out whether this is something people are actually doing, or an art project. Maybe that's the point? Either way, the idea of colonising the abandoned analogue frequencies is cyberpunk in its truest spirit. I'm told that Walter Benjamin saw surrealism as finding a revolutionary potential in obsolete things, in modernity's detritus. This seems a good example.