In the interest of sharing and hopefully shortening the learning curve for someone else here are the instructions for posting presentations onto your blog.

 

1. Register with SlideShare.  The site appears unaccessible a good bit so try again later if it fails.

2. Once registered upload your slide deck.  This failed a couple of times with me but you shoud be able to see the status under my-slideshow.

3. Once its uploaded, look to the right hand side of the screen where you will see some code for wordpress. 

4. Copy and paste this into your blog entry and hey presto (hopefully) the slide deck appears similar to YouTube videos.