I remember reading a while back about Net Epic and if I recall correctly it was a community driven response to mass dislike of the previous (pre Epic-Armageddon) official version of Epic from GW.  I've been looking around and can't find much more to explain it.  I'm downloading the rulebook right now, but what I really want to know is not so much what the rules are.
I want to know what makes Net Epic different currently from say Epic Armageddon and why some folks may prefer to play it.
I found this army builder: 
http://traitor-legion.appspot.com/In it, the only list for Necrons I can find is under "NetEpic".  So if I want to play Necrons, I need to use the NetEpic rules?  Kinda confused here.
I don't need anyone to spoon feed me answers though, just an idea of what to search for, posts or a link somewhere.
Thanks.