Allison, It's interesting that many of our students are tech-savvy and accustomed to electronic and social media connections in their personal lives. Yet even well intentioned media use in the classroom can miss the mark, which just goes to show there has to be something meaningful, beneficial and pertinent to the students study in order to keep their attention. As for YouTube, I try to keep these segments under two minutes. After that, attention begins to drift. Longer segments are best left to professionally produced topics (DVD or video delivery for instance). Barry Westling