I read this morning an excellent research article on using Web 2.0 technologies in higher education: "Students' Acceptance of Web 2.0 Technologies in Higher Education: Findings from a Survey in a Romanian University", Proceedings DEXA 2010 Workshops, IEEE Computer Society Press (Elvira Popescu, SPeL2010), which I recommend for its content, as well as for its valuable bibliography.
As further reading, I am especially tempted by number 7 in this bibliography: M. Homola and Z. Kubincova, "Taking Advantage of Web 2.0 in Organized Education (A Survey)", Proc. ICL 2009, pp. 741-752.
I was not aware of the wealth of literature and preoccupation regarding the use of Web 2.0 for learning and for research. Thank you, Elvira, for introducing me in this world!