1. Langelier, L., Wenger, E.: Work, Learning and Networked, Québec, CEFRIO (2005)
2. Center for Teaching Excellence (CTE), http://www.sc.edu/cte/cop/
3. Learning Network for Teachers (Learn-Nett), http://ute2.umh.ac.be/learn-nett/
4. ePrep, http://www.eprep.org/
5. Did@cTIC, http://www.unifr.ch/didactic/