YouTube would be my go to site for finding videos for use in the classroom but it does have its limitations. When you find a good educational video that you want to share with your students you get frustrated because of the ad's and other features around it. I have provided some resources to assist with youtube videos and some alternatives. The following is a list of free video resources that I hope you can use and find useful.
Clipping is a handy way to collect important slides you want to go back to later.