Thanks to Arpit Ranka for this wonderful link.
Think Mental Models: http://thinkmentalmodels.com
This website, inspired by the work of Charles Munger, provides over 100 checklists that can be brought consciously to mind to aid the thinking process.
Each model is described by at least one distinguished user. Examples include Warren Buffett, Richard Feynman, Robert Rubin and Peter Drucker, among others.