Digital Deli is one that doesn't get much love, for some reason. A bunch of contemporary essays, comics, and listicles about the PC revolution by the people involved. Available online here: https://www.atariarchives.org/deli/
In the same vein, Best of Creative Computing. It's astonishing (and depressing) to realize how many of today's issues were forseen, with little to no progress made. They also happen to be available online: https://www.atariarchives.org/bcc1/ (increment cc1 for additional volumes)
@thomasfuchs This is much earlier than the 70s but might be something you'd dig: "The Human Use of Human Beings - Cybernetics and Society" by Norbert Wiener. First published in 1950, but I found it really fascinating and surprisingly relevant still.