I recently created a set of short 1.5 minute or less narrated online tutorials describing how to search for clinical medicine information. The resources demonstrated are AccessMedicine, STAT!Ref, MD Consult databases and PubMed.
I made the tutorials as a supplement to a workshop that medical students attend, teaching them how to find reliable resources and how to properly cite them. The information they find is used to write up their answers to research questions they generated during their problem-based learning sessions.
You can access the tutorials at http://tinyurl.com/ucsfpbl
Having made a few online tutorials series, I've made sure to have a PDF summarizing the main points of the tutorials. This handout is accessible in the left menu of the webpage.