Different media types have an important to play in blended learning. How they are used to is critical to how well they support learning. The selection of the appropriate media type for a particular situation is a key decision in developing learning resources. I have followed up this issue in a number of publications and presentations, for example:

Putting the visual back into learning materials.

University of Derby, Kedleston Road, October 19th. Presentation together with other materials presented Visually Enhanced Learning Materials.