"I did it. I finally used PowerPoint, that program-with-horns from the pit of Microsoft," Andrew confesses on his weblog. A funny posting in which he also quotes Wired:
PowerPoint's pushy style seeks to set up a speaker's dominance over the audience. The speaker, after all, is making power points with bullets to followers. Could any metaphor be worse? Voicemail menu systems? Billboards? Television? Stalin?
Agree with most of it. Up to now I've never used PowerPoint when teaching, for two reasons: it's pretty inflexible, you're more or less forced to stick to a chronological presentation; and it draws away attention from people to a screen.