Last month (Sept 2013) at the GIS-Pro Conference in Providence, RI I gave a lightning talk (five minutes, 20 slides that advance every 15 seconds). The goal was to provide those in the geospatial industry an overview what they needed to know about Massive Open Online Courses (MOOCs). I thought it went great and URISA videotaped it and published it on YouTube. It's below.
You can find all the talks (well, except one) on this channel.