YouTube

Last week, we wrote about a popular video clip involving Casey Heynes, an Australian student who retaliated after being bullied by 12-year-old Ritchard Gale. The video struck a chord with many across the globe and went viral, being viewed…

Sal Khan was a hedge fund manager tutoring his cousins through distance learning. He started making them instructional videos to reinforce their learning when he couldn't be there in person and after a few lessons, his cousins told him…