Thank you Richard and Dennis for the helpful, practical tips. I have been trying to incorporate far more online video activities - especially for homework assignments - to "flip" the classes so students have to summarize and share the information. While my current materials work with more advanced students at high school and university levels, I'm keenly aware that I need to develop more materials for lower level students at younger ages. Your materials seem like good place to begin.
By the way, you might find this TED talk on "Behind China's Firewall" of interest that was released earlier today.
Michael Anti: Behind the Great Firewall of China | Video on TED.com
Combined with your information on alternatives to YouTube, China and the information race seem to be the hot topic of my morning.