If you do Powerpoint presentations I highly recommend this interesting and original post by Darren Barefoot:
• Respect the Narrative Arc.
• Tell Stories.
• Embrace Metaphors.
• Dialogue Starts on the Page.
• Slides are Your Costumes, Lighting and Set, Not Your Speech.
• Your Set Design Needs Soul.
• The Play’s As Long As It Needs To Be (or Not To Be).
• Surprise Your Audience.
• Begin In Media Res.
• Find the Funny.
Everything I Know About Presentations, I Learned in Theatre School
Dread Powerpoint presentations are finally starting to improve, I feel. They suck less than ever before.

