Today I took some time to watch this recommended presentation on TeacherTube:
How to make a Power Point presentation without breaking the law

It’s really worth while watching this 45 minute presentation on how to make great Power Point presentations. Lots of interesting things on presentation, design, fonts, animation, sources etc. and also interesting information on copyright issues. It was a presentation at the eTech Ohio 2008 conference by Alvin Trusty, a professor at Findley university.