I know we had a thread for this somewhere but I can't find it, so I thought I'd start another one.
I had the link for a great article emailed to me and I thought you guys might like to look at it too. It's about professional jealousy among writers and it's written by the hugely successful Jennifer Crusie at:
http://www.jennycrusie.com/essays/greenisnotyourcolor.php
Thought provoking stuff and a good read for writers at every stage of their careers.