I make YouTube videos for some of my items. Most of them are for items that I had on eBay when I was selling on there. Seeing how successful this is, I really should be making more of them.
I have some videos with thousands of views, the most being about 27,000 views. It seemed a shame not to throw my Etsy shop link on there. I put my Etsy link on most of my videos yesterday, and, according to Etsy Shop Stats, I'm already getting hits from YouTube.
Here's one of them, so you can see what I did to promote, with text right on the video:
http://www.youtube.com/watch?v=L_YokZHmmdc