You should look into PLATO, as I now am (despite having heard of a fractional form of it due to software offered by TI for my first home computer, the TI-99/4A that I received in 1982). Amazing social network tech, not to mention computer learning which was it's core focus, in the '60s and '70s out of the mid-west. I am reading an excellent book on the history, "The Friendly Orange Glow."