Journal Articles:
Ryan, R. M., & Deci, E. L. (2000). Self-determination theory and the facilitation of intrinsic motivation, social development, and well-being. American Psychologist, 55, 68–78.
This article is written by the two most pre-eminent researchers behind Self-Determination Theory, Dr.’s Richard Ryan and Edward Deci. In this article, they guide readers through the primary features of their theory, summarizing important findings and implications along the way. Though scholarly in focus, this article serves as a good starting point for learning about Self-Determination theory and is intended for all audiences, regardless of their prior exposure to the theory.
Gagne, M. & Deci, E. L. (2005). Self-determination theory and work motivation. Journal of Organizational Behavior, 26, 331-362.
This is a scholarly article focused on examining how Self-Determination Theory can be fruitfully applied to the work environment to better understand how motivation works in organizations. A very good article for those wishing to dig deeper into understanding the implications of Self-Determination Theory for the work-place.
Websites:
SDT main site - http://www.psych.rochester.edu/SDT/index.html
This is website is maintained by the primary theorists behind Self-Determination Theory and contains a variety of articles and resources relevant to the theory.