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.
Larry Sanger, co-founder of Wikipedia, has launched a new web site designed to gather and organize educational videos for students ages 3 to 18. The site, WatchKnow.org, currently features more than 11,000 videos across 2,000 categories on subjects such as math, science, and history.