Presentation Helper (http://www.presentationhelper.co.uk/)
Provides information about how to prepare for a presentation. The site has downloadable PowerPoint templates and sound clips.

Library Staff Support (http://www.librarysupportstaff.com/presentations.html)
Includes a variety of tutorials on creating PowerPoint presentations, screen captures, and video captures.

Free Management Library (http://www.managementhelp.org/commskls/presntng/basics.htm)
Read an article on basic presentation skills.

Slide Share (http://www.slideshare.net/)
Upload a your presentation on share slides to share with the class.  

Windows Movie Maker (http://www.microsoft.com/windowsxp/downloads/updates/moviemaker2.mspx)
Download movie maker for free and then use a search engine to find and type “movie maker presentations” for  a plethora of ideas on how to make an online presentation with movie maker.
12 Steps to Better Presentations