I once heard Guy Kawasaki, noted for his speaking prowess, claim that the only thing worse than a speaker that stunk was not knowing when they were going to be done stinking – I ran across this free handy little add on for PowerPoint, called the PowerPoint thermometer that adds a little time strip to the bottom of your presentation and allows you and your audience to monitor how far along you are in your presentation.

And while we’re on the subject of presentations, here’s a blog you should get to know – Presentation Zen.