Using slideshare.net, you can create an online presentation, then embed that presentation here.
1) Create an account on slideshare.net, upload your presentation (supports MS Office, Open Office, Apple, PDF and much more) and provide the necessary details (title, description, tags, etc.). Be sure to make the slide show public.
2) Copy the 'embed' text from the presentation's page on slideshare.net:
3) Create your Document, Blog Post or Discussion thread on Medsphere.org.
4) Use the blue double right arrows in the editor (above) and select: Insert Raw HTML.
5) Place your cursor inside the Raw HTML area (gray) and paste the embed text.
After you have completed your Document, Blog Post or Discussion, publish it to view your presentation.
Here is an example slide presentation:

