The question about web 2.0 being common among students is of course of interest. With this question Martin Ebner and Walther Nagler deal in:
Ebner, M. & Nagler, W. (2010). Has Web2.0 Reached the Educated Top?. InProceedings of World Conference on Educational Multimedia, Hypermedia and Telecommunications 2010 (pp. 4001-4010). Chesapeake, VA: AACE.