Incredible. There is an Anti Powerpoint Party! Awesome. The worst is a PowerPoint presentation via phone conference with 15 people. You know for sure that at least half of the participants are doing something else besides that, which leads to awkward situations: "oh, ähm, hum, … Can you please repeat that again?"
There are tons of presentations on how not to use Powerpoint on slideshare and how to rather use it. And yes there's a flipchart aswell, why not use that occasionally and when the audience is not too big?
Nevertheless neat things can be made with PowerPoint when used correctly. Just have a look.
Death by Powerpoint
You Suck At PowerPoint!
Stop Killing Students With PowerPoint
Don't Be A PowerPoint Felon
Some good points… this is the bonus