1974: my commune had a terminal+social media

 Lee Felsenstein made this possible. He just published a book about his life:

Me and My Big Ideas: Counterculture, Social Media, and the Future

Here is a great interview:

https://magazine.mindplex.ai/lee-felsenstein-who-started-the-digital-revolution-im-exaggerating-a-little-declares-the-golden-age-of-engineering/