Ooops - I should have checked before I sent the last message.  The file
name is  interest-groups.txt .
 
   By the way, there are really many lists of lists.  There are specialized
ones on various topics.   In conjunction with NEW-LIST that we host we've
had a file with some hints on just a few of the lists of lists and
further sources but it is very out of date by network standards.  If you
want a copy you can send   GET LISTSOF LISTS    (note the double plural)
to [log in to unmask]
 
   Marty