Ah. Interesting. When I click on EMBED CODES at the top of this post, it takes me to a permalinked post inside the blog page. Try it and see how the URL at the top switches from the general to the specific.
General Blog Page: http://www.impactvirtual.com/digital-learning-sample
Specific Post URL: http://www.impactvirtual.com/digital-learning-sample/embed-codes