Sliderocket is a nifty online presentation software that has a Lite, or freeware version. The student who showed me this program really, really liked it, because it allowed him the opportunity to connect with the freeware library on Flickr, and gave him an enormous number of images to choose from to augment the presentation. The product ran on any computer, included his own pictures, and allowed the final object to be embedded into a blog. Pretty cool.
Have you used SlideRocket with your kids? If so, what have been your results?