Comedian Don McMillan has a terrific routine about inappropriate use of PowerPoint.

It is not quite as good at this one created in 2000 by by Peter Norvig, the director of research at Google.

My thoughts:

• PowerPoint should be use to augment, not make your presentation.
• Use pictures and movie clips.
• If you need speaker notes, use index cards.
• Join Toastmasters. The only way to improve you public speaking it to speak in public.