When someone takes the time to organize and annotate sites it certainly saves us time! Here is a great list of 100 top YouTube videos for educators. Check out this comprehensive list. The nice thing about YouTube videos is that if they are blocked in your district, you can easily embed them into your blog or wiki. Just find the embed code to the right of the video, highlight it and then go to your wiki or blog and select your widget and paste the code in. Frequently they will have a YouTube widget since it is such a popular medium.