What makes Slidesnack so great is the option to create a slideshow combined with an audio podcast.
1. You can start your slidecast right after publishing your slideshow by selecting Start a slidecast. Alternatively, you can select New Slidecast from the upper right side of the page. If you do the latter, choose the presentation you wish to use and continue.
2. Now you can start recording. Press the square button whenever you’re done, to save your recording. If you’re not happy with it, you can always record again. And there you go, you have a slideshow with an audio podcast.