I recently read a very interesting post on how marketing folks can use a theory of exclusion to attract people. The post (by Seth Godin on his blog) is at http://sethgodin.typepad.com/seths_blog/2007/12/exclusion.html

Incidentally, just a few days ago when I was thinking about different perspectives of business, I started to realize that a lot of nearly every direction or aspect of business can be directed to human psychology. Seth’s post is an example of applying this to marketing, but same goes in stock markets, economics, finance management, leading teams and so on. Infact, wherever you have human interaction, you have the psychology in play. Infact, on this realization, I have been keen to study some material on applied psychology - not the typical dry-bone psychology theories (I dont dis-respect those but just that they are not my cup of tea!) - but the pieces like above are very interesting and are of great importance in getting insights to how situations can be dealt with in business.