I've been thinking about doing a PowerPoint links post for a long time. Communications is one of those skills that can really open new doors for you in business, and being able to communicate your ideas in a fresh way can make a big difference in your overall effectiveness. Here are some of my favorite PowerPoint for Mac and general presentation resources and posts from around the net. There are many more of course, but I picked these because the ideas behind most of them are a little different than your standard, X bullets per slide, X words per bullet, posts.

PowerPoint Articles and Tips at Mactopia
Here you'll find dozens of tips and techniques specific to PowerPoint 2004 for Mac. There's a lot of stuff here, so take some time to read through it.

Sociable Media
Cliff Atkinson is the author of Beyond Bullet Points. I love this book and Cliff has some unique ideas about how to create and present a compelling presentation. Be sure to check out the excellent articles that Cliff has posted at the site. (They're not as easy to find as they probably should be.)

From the product site: ProfCast is a versatile, powerful, yet very simple to use tool for recording lectures including PowerPoint and/or Keynote slides for creating enhanced podcasts. ProfCast is an excellent solution for capturing audio with your presentation for later use as video podcasts.

Presentation Zen
From the site: Garr Reynolds' blog on issues related to professional presentation design. Excellent presentation resource.

My Best Presentation Tricks
Solid presentation post by Chris Brogan at Lifehack.org.

Top 10 Best Presentations Ever
Once you have all the skills, check out the kinds of presentations that people talk about for years afterword.

Finally, a little history. PowerPoint for Mac has been around for a long, long time. Check out this episode of The Computer Chronicles from 1989. One of the more interesting things to note is how far along projection technology has come. Imagine how far ahead you had to plan to send your slides out to a service bureau before your presentation.