It would be a good idea to combine the list. Or at least for qam1 to be on Behbg79's list and vice versa...Bethbg79 be on qam1's list. That way if one pings the other can activate their list.
the way the ping works is that you make a list of people who have certain things in common, and whenever an appropriate post comes you paste your list in the To box and write the word "ping" in your reply. This will show up in everyone who is on the list's "pings" column in red as "new post to you". That way everyone is informed that a subject they are particularly interested in is being discussed.
You could just put everyone who came to the thread on your list! That wouldn't be nice though would it? But if they really want off they can just let you know.
qam, could you please add me to the Generation X'er ping list?