Because K-12 institutions routinely block YouTube, it can be difficult to show great educational examples of Second Life, as well as those wonderful tutorials by Torley and others.
However, I was just clued into TeacherTube. com as a purely educational alternative. In fact, Suffern Middle School (Ramapo project), CATE and English Village projects already have great posts that might really help communicate the educational potential of SL to others. Edutopia also has a featured article this month for reference.
TeacherTube also allows for support files, such as Word docs! Check it out!: