I was just telling another user that YouTube is a great way to promote your content. It can be very viral in combination with the same keyword phrases that the content you are trying to promote uses.
Just provide good links in the description box to your content plus one that doubles back to the video it self, and maybe a link to another video or content on you site that coincides with the YouTube video.
Also provide links to it on Facebook, Twitter and Google plus.
Hope this helps