This report produced by JISC last year may be of interest. The reports findings are perhaps not that unexpected; it would be good to hear what others think (especially in terms of the reports methodology).

"As part of its development, the Pre-Raphaelite Resource digitisation project recently commissioned an audience research study to consult users about whether the inclusion of Web 2.0 features on a resource of this type would be useful or important to the education community". http://digitisation.jiscinvolve.org/2008/07/07/is-academia-r...