You'll find everything here about speaking: PowerPoint tips, humor power, presentation Zen, you name it! It's all the top speaking news. And if you are moderating, please read these comprehensive tips.
More helpful resources:
How to get Tweetable Moments from your Presentations
Five Reasons for Speakers to use Twitter and How to do it
SpeakerClock app - a must for presenters!
8 Tips for Successful Speaking
Legal Responsibilities for Association Program Speakers