These are the trends and challenges shaping online learning [Infographic]
Roger Riddell
In their survey of 675 senior administrators and UPCEA and NASPA member institutions, InsideTrack and both organizations first sought to find who was accountable for student success in online programs.

Learning Theory
Richard Millwood
Here is a graphical overview of HoTEL (Holistic Approach to Technology-Enhanced Learning), a depiction of the theories of several experts in the e-learning field, including Piaget, Vygotsky, Dewey, Millwood, and Montessori, among others.