Recent efforts by organizations like Coursera, edX, Udacity and Khan Academy have produced thousands of educational videos logging hundreds of millions of views in their attempt to make learning freely available to the masses. While the presentation style of the videos varies depending on the author, they all share a common drawback: videos are time-consuming to produce and cannot be easily modified after release.
With that in mind, we present VidWiki, an online platform to leverage the massive numbers of online students viewing videos to iteratively improve video presentation quality and content, similar to other crowdsourced information projects like Wikipedia. Through the platform, users annotate videos by overlaying content on top of the video, lifting the burden on the instructor to update and refine content.