Just so everyone knows, I do have a Facebook group for stereotypies where people can join up and post comments/questions for everyone to provide feedback on. I find it has been particularly helpful for those parents who have a new diagnosis or are finding the term after seeing the videos. I'm not particularly fond of Facebook, but I will allow that it has been very helpful for parents who are worried (like we all were/are at some point!)
You can find the group at http://www.facebook.com/groups/motorstereotypy/ (link in sidebar as well). We would be happy to have some medical professionals, medical students, and educators on board, so if you are inclined please join up.
All the best-