Other
Abraham Maslow: A Current List of Books and Articles
The ultimate Maslow reference. Complete bibliographical lists of books, personal letters, articles, historical archives, etc. Great starting place for research on the man and his work.
Sophia Learning
Sophia: Maslow's Hierarchy of Needs: Lesson 2
At the end of this tutorial, the learner will understand the concept of Maslow's hierarchy of needs. It is 2 of 4 in the series titled "Maslow's Hierarchy of Needs."
Other
The Skeptic's Dictionary: Est and Werner Erhard
Werner Erhard's EST, the Erhard Seminar Training is part of the human potential movement and is an an example of what psychologists call a "large group awareness training program."