One of my PhD students (Luís Simões) presented his work at the following conference:
SIMÕES, Luís; BORGES GOUVEIA, Luís (2008), “Web 2.0 and Higher Education: Pedagogical Implications”. Proceedings of the 4th International Barcelona Conference on Higher Education, Vol. 2. Knowledge technologies for social transformation. Barcelona: GUNI. Available at http://www.guni-rmies.net.
The presentation is available in slideshare: