Used the Bookmarks RSS feed to show how you can add a WebSlide RSS feed to a blog. I am not sure if I missed something but when I clicked on the WebSlide icon shown in the Groups bookmarks section it creates the webslide but I could not find the embed code.

So the steps I used involve:

* get the feed that you want (http://groups.diigo.com/rss/educators/bookmark)
* go to http://slides.diigo.com/ to decide what type of web slide you want to use
* add the RSS feed to the the WebSlides
* decide on how you want to display your WebSlide
* copy the embed code into your blog post or page