I teach Powerpoint as part of Mercer University’s CSC125 class, and have studied presenting for a number of years as part of my teaching in various locales and situations.
I find it fascinating how the technology has changed over the years. granted, I’m a bit of a maverick – I selected Astound to use for presenting way back in 1998 because it was cross-platform and way ahead of Powerpoint in terms of animation and video playback. I’ve used one of the tools mentioned below for a couple of years, and am planning on checking out the other soon.
Both use the “freemium” model – accounts are free for basic functionality, and advanced features are available for a subscription.
Slideshare.net allows you to upload presentation files in several formats – Powerpoint, of course, but also Keynote. Others can easily view them and navigate through the presentation in a web browser. The coolest feature, though, is the “Screencast” – where you upload the presention into Slideshare.net, upload an mp3 file to a web-enabled location, and then use an intuitive interface to link the two together.
Here’s an example of quickie presentation I threw together for my Mercer class – I was out sick, but needed to go ahead and cover the material.
PREZI.com is something I just found this week. It allows easy creation of ZOOMING presentations, which are visually interesting (as long as they are designed well!).