The music is appropriate for the context of the video. You give background knowledge along with current ways to use WebQuest. I like the transitions you use to each slide and the way you have separated your content into sections. The content is useful. You explain WebQuests, give examples to help convey your points, and explain how to present information to students.
The use of screencast complements the information presented in the video.
Is there a written version of this video so that people could refer to that as well? It would be nice to have that information there to complement the video. Also if you could have a picture of the author at the beginning, that would a way to the participants to connect to the author.