Permission from author required to link to the IDKB. If citing this work in a publication or scholarly work, it should be referenced as: 

Dabbagh, N. (date retrieved). The Instructional Design Knowledge Base. Retrieved month, day, year from Nada Dabbagh's Homepage, George Mason University, Instructional Technology Program. Website: http://cehdclass.gmu.edu/ndabbagh/Resources/IDKB/index.htm

(Click on the phase of Instructional Design on which you are working to view a page on that topic.)