here's one list). Today, I learned about another place that teachers and students can find and watch documentaries online. DocumentaryZ offers hundreds of documentaries organized into two dozen categories. Many of the videos are served via YouTube, but some are not. If you're fortunate enough to work in a school that allows you to access YouTube, DocumentaryZ is worth bookmarking.
Applications for Education
If you're looking for a documentary to use in your classroom, take a look at DocumentaryZ. I do have one word of caution, the Health and Sexuality categories do include some topics that may not be appropriate for all students. Therefore, it would be best to use DocumentaryZ for your own searches rather than letting students search the site on their own.