Early timesharing/BBS systems

There were probably a lot, but I remember "Call/370", which I think was one of the first commercial ones. == I have an Auerbach report on timesharing services which I'll try to dig up, which gives short company histories for many of the early commercial services. Most of the major computer companies were offering some service by the late 60's. Part of IBM's antitrust settlement with CDC was that CDC got IBM's service bureau operation. GE timsharing stuck around for a while. Tymeshare was one of the earliest independents, bootstrapping themselves and fixing tons of bugs in the GENIE code. I also forgot to mention HPs timeshared basic and 3000 systems, also from the very early 70s ( the 3000 being HP's 'real' timesharing machine, so they said)