For some, pursuing further education is impractical or simply unaffordable. In such cases, having the option to study from wherever is convenient and without the burden of cost would be an invaluable gift. The Khan Academy is working to provide a solution and the Khan Academy API is helping to spread the wealth.
No need to send your users off to get embed code, the snippet of text needed to include videos and other rich media in a web page. All you need is the original URL to the content and Embed.ly returns the HTML you need, along with plenty of other useful meta-data. And it supports an impressive list of over 100 sites.