Other
Awesome Backgrounds: Awesome Power Point Tutorials
These nine, free PowerPoint tutorials are for the more "advanced" user. They include lessons on link different PowerPoint presentations together, getting the best from bitmap graphics for "On-screen" PowerPoint presentations, text...
Wikimedia
Wikipedia: Microsoft Power Point
This site from the Encyclopedia Wikipedia offers an extensive definition of the presentation software, Microsoft PowerPoint. Includes information on its history, concept, criticism, features, links, and more.