http://en.wikipedia.org/wiki/Distance_education

http://www.usdla.org/

http://www.distancelearning.org/

http://www.cnm.edu/depts/dl/index.php

http://dir.yahoo.com/Education/Distance_Learning/Colleges_and_Universities/

http://www.distancelearning.ufl.edu/

http://www.petersons.com/distancelearning/

http://www.pittcc.edu/distance-learning/index.html

http://www.elearners.com/resources/glossary.asp

http://www.kcdistancelearning.com/