I gave a demo of our intranet yesterday. I had a few slides of background material I wanted to cover first and then jump into the site for the rest of the presentation. So, I grabbed the S5 presentation template and created an HTML-based slideshow and linked to the intranet on the last slide. The beauty of this is that I didn’t have to do any awkward application switching between powerpoint and the browser. It really made the presentation much smoother by running the whole thing through the browser.