Bullet points don't kill people...
via the CALI pre-law blog
links to a fantastic slideshared presentation about how to use PowerPoint without killing your audience (and shooting yourself in the foot in the process). I liked it so much I'm going to embed it here too, but do check out the comments at Lifehacker
for even more helpful tips--like using being stuck in a bad presentation to assess the way others react to it.
My favorite part? The example slides in Russian to make the point that you don't have to know the language to recognize a bad slide when you see it.