Ever wondered who is behind removal of videos you just wanted to see, but was presented by message saying the video was removed due to some kind of TOS violation, YouTomb - a research project by MIT Free Culture can provide you with some valuable stats, YouTomb continually monitors more then 225051 videos on YouTube for copyright-related takedowns. Any information available in the metadata is retained, including who issued the complaint and how long the video was up before takedown. The goal of the project is to identify how YouTube recognizes potential copyright violations as well as to aggregate mistakes made by the algorithm.