- SlideShare is sometimes called the "YouTube of presentations," and its free version includes unlimited sharing of presentations and Zipcast meetings, simple web-based meetings that don't allow downloads. (You can share your presentations using the SlideShare app on The Eloquent Woman on Facebook.) Premium versions let you share slides privately and more.
- Scribd also lets you upload presentations (browse some Scribd presentations here), and allows users to share or "readcast" them across social networks, print them, or view them on mobile devices.
- Prezi uses a zoom feature rather than a linear approach to advancing your slides (handy if you want at some point to have all your slides in thumbnail size on the screen so you can go back to a particular one) and it includes sharing. You can invite someone to view or edit your slides, or publish them widely. Prezi includes an iPad version and you can "Prezify" slides from PowerPoint or Keynote.
- Present.me says it's the easiest way to upload and record your presentation. You upload the slides, then use your webcam to record yourself giving the presentation, a nice video adjunct that's shown side-by-side with your slides. It's an easy way to make a video of yourself speaking--something conference organizers want to see when they're considering you as a speaker.
- PowerPoint Radio is a feature of PowerPoint 2010 that lets you watch live broadcasts of slide presentations or broadcast your own by sending a link to anyone you want; they'll see a synchronized view of your presentation in their web browsers.Your audience doesn't need PowerPoint to watch the broadcast, but you'll need a Windows Live ID to do this. Here are the instructions. PowerPoint also uses slide libraries to help you share slides in more routine ways.
- 280slides, now in a beta test, lets you create or load presentations and makes it easy to publish them to SlideShare, create linking and embedding codes, email presentations and more. Its presentation-building tools also make it easy to search for movies and other content you can embed in the slides.
- SlideBoom lets you publish slides for free, with premium options to share them privately with clients or colleagues. It also includes PowerPoint templates and other tools for building presentations.
Related post: 7 reasons to convert your slide deck to video--and how to do it