A few weeks ago, a physician asked me to find a slide-sharing website that he had heard about through word-of-mouth. I came up with Slideshare: www.slideshare.net .
I’ve just run across another: AuthorStream: www.authorstream.com . Like Slideshare, AuthorStream allows presenters to upload and share presentations. The site includes animated presentations and presentations with audio. However, downloading presentations is not currently supported.