I have been doing research on good models of presentations, so that I can stop complaining about the abundance of boring nonprofit presentations and actually do something about the issue. During my research I found this great presentation on the story of stuff by Annie Leonard. Here is a description of this 20 minute presentation:
From its extraction through sale, use and disposal, all the stuff in our lives affects communities at home and abroad, yet most of this is hidden from view. The Story of Stuff is a 20-minute, fast-paced, fact-filled look at the underside of our production and consumption patterns. The Story of Stuff exposes the connections between a huge number of environmental and social issues, and calls us together to create a more sustainable and just world. It'll teach you something, it'll make you laugh, and it just may change the way you look at all the stuff in your life forever. The video can be found here.
What I love about this presentation is that it uses engaging visuals and a very conversational speaking style to bring an important message to the masses.