I like the idea of a newsgroup.  That way when I go away for the weekend 
I don't have 250 new mail messages waiting for me.  I can easily browse 
a newgroup and look at the threads to see if I am interested.  I think 
that is a major reason why people join a list, get way too many messages 
and then decide to be removed after seeing how much traffic it 
generates.  

I don't know any of the technical reasons on why one is better than 
another or what is involved in administration....

I suppose a list prevents alot of SPAM and unwanted junk mail....

Chet
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Chet Douglas - CRD Consulting - Peripheral FW,SW,and Drivers
(541) 754 - 1817