I've linked to this Youtube clip before, but it bears repeating. My students are starting presentations this week for my Financial Strategy course. Since learning how to effectively present material is one of the things they should get out of the class, I point them to a couple of sites. One is Presentation Zen, which should be a must-read fo all undergraduate (and graduate) students. Here's another, titled "Life After Death By PowerPoint." It hits most of the high (and low) points in a pretty memorable (and humorous) manner:
If you have any others, let me know.