The John Maxwell Company
Stephen R. Covey
Wharton Center for Leadership and Change Management
Dale Carnegie Training
The Leadership Challenge
The Ken Blanchard Company
Harvard Kennedy School - Center for Public Leadership
Inside Out Perspective
Leadership Tools for Leadership Development
Leader to Leader Journal
Society for Organizational Learning
Secrets of Success - Free Dale Carnegie app
The Leadership Challenge - This is a free version of the app. There is paid version as well with additional features.
iLeadership - Paid interactive app includes a free copy of the ebook, Leadership Connections.
Mind Mapping & Planning Apps
MindMeister - Free version allows you to create three maps, save them to the cloud and access at the mindmeister website.
SuperMind+ - This is a free version of the app. There paid versions with additional features.
Magical iPad HD - This is a full featured paid app that includes note taking and mind mapping. There is a free iPhone version.
iMindMap HD - This is a limited free app with a number of paid upgrades available.