I added this because after learning about each of the main theories of leadership I used this programcalled Edynco to help me remember the main points of each, add a summary of the main leadership theories as well as the limits and makes it easy to help review and refresh my memory it includes such leadership theories as Trait, Behaviour, Situation, Contingency, Transactive, Contribution style leadership and Situational.
I created a Jing Video to show the different leadership theories and their limits:
http://screencast.com/t/eHknDRmHFuA