Presentation slides of the academic paper. Mikhail Fominykh, Ekaterina Prasolova-Førland and Peter Leong: "Formal and Informal Collaborative Learning in 3D Virtual Campuses," in the 6th International Conference on Collaboration Technologies (CollabTech), Sapporo, Japan, August 27–29, 2012, Information Processing Society of Japan, ISBN: 978-4-915256-86-8 C3804, pp. 64–69.