Great article, and i'm glad you enjoy contributing to the site, it has certainly helped myself as well
one of my previous employers put every new employee through a "consultancy and communication course"
i learned about something called the disc model
basically it explains how to identify different personality types and which words not to use to each type
for example a D type personality you use "absolutely, definatly" but never Maybe
you can spot a C type by the way they move when they avoid an advert on the pavement and then change your use of words to influence them
My favourites are the I category, they are influencers and usually salesmen... i've found that the word "if" comes into play with these people.. "i can get that done for you in 3 weeks IF you give me 3 more people", they like solutions not obstacles - anything to close a deal
It's a great soft skill in IT to be able to communicate based on the personality of the different people in your team.