iSpring Free

iSpring Free (http://ispringsolutions.com) is a free, downloadable add-on to PowerPoint (PC-only) that allows users to export narrated PowerPoint presentations as Flash for sharing online. Because of the small file size produced by iSpring, instructors can distribute course content easily and effectively to their students, and students can themselves develop and share voice-over presentations as part of their coursework. More feature-rich upgrades are available at a cost. The following image comes from the iSpring website: