If you often have PowerPoint presentations that you want to share, SlideShark is a clever and free iOS app that does the trick. I'm mostly a Keynote kind of guy, but many times I've used PowerPoint for presentations, and SlideShark lets me share with remote colleagues as if they were in the same room.
To get started, sign up for a free individual account. You get 100 MB of storage (a paid pro version is also available). You can upload a PowerPoint file from your iOS device, or any computer through a web portal. Then you email links to others and they can view your presentation on any device with a web browser.
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