RevealJS
Created by HolisticWare
Make fancy presentations easily with nothing more than HTML
The package allows you to turn the HTML content of a page into slides of a presentation that can be viewed right on your website. Based on RevealJS HTML Presentation Framework.
When preparing a presentation, you can create nested slides, which can be viewed by pressing the up and down buttons, along with the slides in the regular slideshow flow - from left to right, or right to left.