I am aware that people were able (and still able) to connect to bulletin boards and library catalogs via telnet, but was there such a thing as a "reference net" for general topics? If so, do any still exist?
[0] https://www.youtube.com/watch?v=vBRE-RzLg5M
https://books.google.com/books?id=jzwEAAAAMBAJ&lpg=PA39&ots=...
These services were relatively expensive, and I’m not sure how many users would have paid the per-minute or per-record charges just for access to text from a general-interest encyclopedia, which at that time, would have been available in print in nearly all libraries and in some classrooms and homes.
Dialog (https://dialog.com/) still exists, and public and academic libraries continue to offer their patrons access to a wide range of subscription-only reference databases.