George Siemens at the University of Manitoba suggests 3 stages of using technology in university level courses. They are;
Augmented (use of blogs,wikis,podcasts,email,webCT & discussion forums to extend in-classroom participation) Classes are still held face to face at this stage.
Blended (use of alternative presentation and collaborative technologies) Here he suggests online sessions replace some, but not all face to face sessions
Online (entirely delivered online, using LMS or a combination of tools to evaluate, collaborate, converse & present)
The challenge is finding ways to support learners in moving from one stage to the next.