The proceedings contain 34 papers. The topics discussed include: social networks and knowledge construction promotion in e-learning contexts; collaborative online learning: a heterogeneous phenomenon; agent-based collaboration systems: a case study; the construction of knowledge through gaming. how to engage university students in the understanding of the historical developments of knowledge and scholarship via playing and networking; e-learning by doing with computational logic; open education and virtual communities: an experience; open source LMS and web 2.0 for supplementary teaching: an experience; a problematic teaching model for the implementation of e-learning formative pathways; a web-based learning tool for applied mathematics disciplines; laboratory door opens to non-formal learning communities. science centers as mediators; and virtual teams and preferential attachment for intrinsic motivation.