SlideShare is a popular website for hosting PowerPoint presentations, Keynote decks, PDFs and inforgraphics. You can even include YouTube videos in your slides.

SlideShare 3D

The SlideShare 3D tool will transform your presentations into beautiful 3D slideshows with cinema mode. The presentations are touch-enabled and understand pinch and swipe gestures.

Now Upload MP3 Files on SlideShare

Slideshare can now host you MP3 audio files that will play in sync with your PowerPoint (or Keynotes) slides. And uploading MP3 is free.

When Making a Live PowerPoint Presentation Using SlideShare

When you are delivering a live PowerPoint presentation using Slideshare, you could face problems if the network is slow or unavailable. To prevent this, rehearse the presentation so that a copy is stored in the browser cache.