IBMMAIN??? erm.... what?

IBMMAIN? You mean this mailing-list thing? http://www.nnseek.com/e/bit.listserv.ibmmain/

That's not really anything like MySpace is it? It's a bit short-sighted to point at these new social networking sites like MySpace and Facebook and say "pah, email lists are already doing this".

That said, the "Destination Z" lot don't seem to have got the idea either... it's just another sales-pitch site. So, I wouldn't worry - you can go back to your emails now :-)