Bereiter, C., (2002). Education and Mind in the Knowledge Age.

Bryke, A.,S., Schneider, B. (2002). Trust in Schools: A Core Resource for Improvement, New York: The Russell Sage Foundation.

Csikszentmihalyi, M., (1990). Flow: The Psychology of Optimal Experience. New York: Harper and Row.

Dede, C. (1996). Emerging technologies and distributed learning. American Journal of Distance Education 10, 2, 4-36.

Granovetter, M., (1973). "The Strength of Weak Ties"; American Journal of Sociology, Vol. 78, No. 6., May 1973, pp 1360-1380.

Penuel, W.,R., & Riel, M. (2007). The new science of networks and the challenge of school change. Phi Delta Kappan. 88(8), 611-615

Portes, A., (1998). Social capital: Its origins and applications in modern sociology.Annual Review of Sociology, 24, 1–24.

Putnam, R., (1993). Making democracy work: Civic traditions in modern Italy.Princeton, NJ: Princeton University Press.

Riel, M. (2004a). Online learning circles. In the Encyclopedia of distributed learning. Sage Publishers 281-284.

Riel, M., (2004b) Electronic Learning Circles. In Ann Kovalchick & Kara Dawson (Eds.) An Encyclopedia of Educational Technology. Volume 2: 407-414.

Riel, M., and Polin, L., (2004). Learning Communities: Common Ground and Critical Differences in Designing Technical Support.

In S. Barab, R. Kling, & J. Gray (Eds.). Designing for Virtual Communities in the Service of Learning. Cambridge, MA: Cambridge University Press.

Ross, J., and Ross, W., (1982). Japanese Quality Circles and Productivity. Reston Publishing Company.

Scardamalia, M., (2002). Collective cognitive responsibility for the advancement of knowledge. In B. Smith (Ed.) Liberal education in a knowledge society (pp. 67-98). Chicago: Open Court.

Salomon, G., (1993). Distributed cognitions: Psychological and educational considerations. New York: Cambridge University Press.

Vygotsky, L. ,(1978). Mind in Society. London: Harvard University Press.