WatchKnow

Website: watchknow.org

WatchKnow is a non-profit community started by Dr. Larry Sanger, co-creator of Wikipedia. It is a collection of more than 18,000 videos and other media, explaining every topic taught to school kids. They are rated and sorted into a giant directory, making them simple to find. Virtually every school subject can be reinforced with videos from this site.

WatchKnow is founded on the belief that if you watch something, you know it. Videos have been collected from a variety of sources. Some are closed captioned or open captioned. This is a wonderful tool to be used at home or in schools.