This is a light-hearted tutorial created by students in the master's degree program in Educational Technology Leadership at The George Washington University with fun graphics. Disclaimer aside, the site seems to have excellent content and a good bibliography with links to relevant other sites for more in depth information at pertinent points.
Viewers can quiz themselves on the content, answering questions about cases presented.
Took longer to load the animated graphics than I would prefer, but if one has the time, it may be a helpful orientation site.