SlideRocket for Education is a cloud-based presentation creation tool. It is currently offering free, full-featured accounts for students and teachers with an EDU email address. SlideRocket lets you embed videos from YouTube, add photos from Flickr, and record narration for your slides, all from within your web-browser. No additional software (except Adobe Flash) is required. Presentations are stored in the cloud so you can access them from anywhere. You can password protect presentations, view analytics for your presentations, collaborate with other SlideRocket users, and collect form/poll data from within your SlideRocket presentations.
Furthermore, since you are creating presentations online, it is easy to embed SlideRocket presentations on other websites (like Blackboard) or publish them on SlideRocket’s website so others can view them within their own web browser. Sharing and viewing PowerPoint or Keynote presentations online is often more difficult.
Check it out here: http://www.sliderocket.com/solutions/education_all.html