This video from TEDx features a presentation from Doug Johnson of Blue Skunk Blog fame amongst other forums and spaces. In this presentation, the topic is:

Entertainment vs. Engagement: Why it's Imperative Educators Know the Difference

Description: When asked a defining characteristic of the "Net" Generation, teachers often cite the need for today's students to be constantly entertained. This talk will argue that there are significant differences between activities that are entertaining and those that are engaging, and what today's student demands is engagement.