Sliderocket is a great presentation tool that lets users easily create, collaborate and share stunning media-rich presentations. It even provides ready made templates for you to use.
2- SlideSix
3- Vuvox
You can use Vuvox to instantly produce dynamic interactive panoramas with hot-spots. You can also upload and edit the presentations you have created .
4- Keynote
5- Prezi
Prezi is an awesome visualization tool. You can use it to visualize your ideas in interactive canvases, and import PowerPoint slides, images, videos , PDFs ect. Check out the video tutorial it has on its homepage to learn more about it.
6- Zoho Show
Zoho Show is an online presentation tool that helps you create and deliver presentations. It has several applications and features that makes creating presentations way simpler .