WatchKnowLearn - Educational Videos

http://www.watchknow.org

Imagine hundreds of thousands of great short videos, and other media, explaining every topic taught to school kids. Imagine them rated and sorted into a giant Directory, making them simple to find. WatchKnow--as in, "You watch, you know"--is a non-profit online community devoted to this goal.  Launched in October 2009 after a year-long development period, WatchKnow is a wiki-style portal that gathers and organizes educational videos for students ages 3 to 18. An age filter slider allows you to easily focus your search. 

The Vision behind WatchKnowLearn is simple:
To provide a world-class, online domain on which educators can store, categorize, and rate the best, K – 12 educational videos on the Internet today. And to make this service FREE so teachers, parents and students everywhere may have access to those videos.

WatchKnowLearn has indexed approximately 50,000 educational videos, placing them into a directory of over 5,000 categories. The videos are available without any registration or fees to teachers in the classroom, as well as parents and students at home 24/7.