Valtonen, Teemu, Sari Havu-Nuutinen, Patrick Dillon, Sini Kontkanen, Mikko Vesisenaho, and Susanna Pöntinen. 2013. “Challenges With Social Software for Collaboration: Two Case Studies from Teacher Training”. Seminar.Net 9 (1). https://doi.org/10.7577/seminar.2391.