eLearning encompasses a continuum of educational technology -- from the supplemental use of technology in the classroom, through a mix of face-to-face and online instruction, to fully online learning environments delivered to remote learners.
Supplemental
Technology used to complement traditional learning experiences (Carmen, online syllabi, Powerpoint presentations, video streaming, digital images, podcasts of lectures, course notes, library eReserves, etc.).
Blended
A mix of face-to-face and online learning experiences.
Distance Learning
Courses that exist solely online. Interaction may be synchronous (facilitated in real time) or asynchronous (self-paced).