Dr. Clare W. Graves website (maintained by Chris Cowan, Natasha Todorovic, and William R. Lee)
Additional Descriptions of Value Meme Levels
The Science Leading to SD Theory
Developmental Psychology (wikipedia entry)
How Psychology and Propaganda is used to Manipulate Groups and Memes
The Century of the Self (Part 1) a must see Documentary that chronicle’s the refinement of propaganda and group manipulation.