This Educational Technology list was created on February 10th, 1989. That was just five years after I graduated high school. I didn't discover it until many years later. But, it was initially founded by a group of graduate students and faculty at Michigan State University, lead by Vickie Banks Gaynor, to further communication among studetns and professionals in the field of educational technology.
Some years later (I don't remember exactly when) it joined the H-NET Humanities and Social Sciences online list umbrella, through the original BitNet feed and it's still available via google groups (though I think it stopped indexing back in 2014)
I think it was in 2014 that this list got moved to H-NET 2.0. One would think -- a group of savvy eductational technolosts would have applauded such a move; but, it nearly ended this list. In fact, if it were not for Kathy-ann Daniel-Gitten stepping up to help moderate this list it probably would have ended.
If you are still on this list for any reasons (nostalgiac or otherwise) we would love to hear from you on our 29th birthday. With the move I've lost some of the query opportunties I used to have (or, simply haven't learned them with the new system) but, I can tell you that we still have 280 pages of subscribers. Each page has 11 subscribers so that is still over 3,000 subscribers.