Definition of "BTW"

Last I heard, the books could not be copied in any part nor seen by non-licensees. BTW – Irma Biren has been promoted (she deserved it) and the new contact would be Francine Glick.

1981 June 14, harpo!ber, “Lion's Book”, in fa.unix-wizards‎ (Usenet), retrieved 2016-07-02, message-ID <anews.Aharpo.261>

BTW – By The Way

1989 May 8, Vince Perriello (Editor in Chief), “Volume 6, Number 19”, in FidoNews‎, archived from the original on 2005-01-18