S5 is a slide show format based entirely on XHTML, CSS, and
have a printer-friendly version as well. The markup used for the
slides is very simple, highly semantic, and completely accessible.
Anyone with even a smidgen of familiarity with HTML or XHTML can
look at the markup and figure out how to adapt it to their
particular needs. Anyone familiar with CSS can create their own
slide show theme. It's totally simple, and it's totally
More details can be found at http://meyerweb.com/eric/tools/s5/
We have wrapped up the S5 project into an Umbraco package for easy creation of presentations.