As an educator it is so frustrating to know of so many tools available to you, only to find out you can not access them. Are you in a school where YouTube is blocked? I am. Even though there are so many GOOD videos out there, there are just as many POOR ones. But educators, here's a solution to your problem. www.safeshare.tv
At Safeshare, you can convert YouTube videos into downloadable video files, similar to tools like www.vixy.com and www.zamzar.com , BUT - you can edit the videos, get rid of all the surrounding ads and delete the comments. Try it out! Just always be sure to preview all videos first before showing to your students.
~