YouTube: The undisputed king of all video sites. Whilst all the others are great and offer you a little more safety in regards to content, pretty much all the great content from those sites can also be found here in most cases.
TED-Ed: From a site that’s long been known for big ideas, you’ll find TED-Ed, videos specifically designed to act as highly engaging and fun lessons.
TeacherTube: This YouTube for teachers is an amazing resource for finding educationally-focused videos to share with your classroom. You can find videos uploaded by other teachers or share your own.
Edutopia: An awesome place to find learning ideas and resources, Edutopia has videos, blogs, and more, all sorted into grade levels.
YouTube EDU: A YouTube channel just for education, you can find primary and secondary education, university-level videos, and even lifelong learning.
Classroom Clips: Classroom Clips offers media for educators and students alike, including video and audio in a browseable format.
neoK12: Find science videos and more for school kids in K-12 on neoK12.
OV Guide: Find education videos on this site, featuring author readings and instructional videos.
CosmoLearning: This free educational website has videos in 36 different academic subjects.
Google Educational Videos: Cool Cat Teacher offers this excellent tutorial for finding the best of Google’s educational videos.
Brightstorm: On Brightstorm, students can find homework help in math and science, even test prep, too.
Explore.org: Explore.org shares live animal cams, films, educational channels, and more for your classroom to explore.
UWTV: Offered by the University of Washington, UWTV has videos in the arts, K-12, social sciences, health, and more.
Videolectures.net: With Videolectures.net, you’ll get access to browseable lectures designed for the exchange of ideas and knowledge, offering videos in architecture, business, technology, and many more categories.
Zane Education: Zane Education offers resources for visual learning, including the very popular on demand subtitled videos.
Backpack TV: In this educational video library, you’ll find a special interest in math, science, and other academic subjects.
MentorMob: Featuring learning playlists, MentorMob is a great place to find lessons you want to teach.
Disney Educational Productions: This resource from Disney is a great place to find videos for students at the K-12 level.