Next Vista for Learning is a unique video sharing website because it focuses on sharing videos made by students to help other students (you will also find some videos made by teachers). One good example of this can be found in Emailing Your Teacher, With Captain Communicator. The short video features two students demonstrating how to write an email to a teacher. It’s cute and well worth 90 seconds of your time.
On a related note, the following video produced by a teacher and shared on YouTube outlines five email etiquette tips for students.