A peer-reviewed "… curated collection of free and open online teaching, learning, and faculty development services contributed and used by an international educational community." Membership is free. 19 Categories of learning resources are described at : http://info.merlot.org/merlothelp/index.htm#merlot_collection.htm . They include case studies, audio-visual resources, simulations and tutorials.
(1) Case studies with Teaching Notes; (2) Simulations with Instructional Video and Teaching Video and Briefing Slides. (Access IS FREE to Teaching Notes, Teaching Videos and Briefing Slides, but requires registration and proof of faculty status.)