1. Harasim, L.: Shift Happens: Online Education as a new Paradigm in Learning. Internet and Higher Education 3(1) (2000)
2. SCORM: Best Practices Guide for Content Developers. Learning Systems Architecture Lab (2005),
http://www.lsal.cmu.edu/lsal/expertise/projects/
(retrieved September 9, 2006)
3. IEEE: Standard for Learning Object Metadata. Learning Technology Standards Committee (2003),
http://grouper.ieee.org/LTSC/wg12/
(retrieved August 15, 2006)
4. IMS: IMS Open Specifications for Interoperable Learning Technology (2003),
http://www.imsglobal.org/
(retrieved August 15, 2006)
5. Hill, J.R.: Overcoming obstacles and creating connections: Community building in Web-based learning environments. Journal of Computing in Higher Education 14(1), 67–86 (2002)