Here's a link about feedback on flexible learning from the Access and Equity in Online Learning bibliography:

Students' Feedback on Flexible Learning

One example of the first-rate links contained in the biblio from "Down Under," which yielded more valuable links.

One in particular . . .

The Critical Place of Information Literacy in the Trend Towards Flexible Delivery in Higher Education Contexts

. . . struck me as especially pertinent.

Participants need to be able to connect before inclination to join the discussion becomes an issue.