There are millions of videos up on YouTube, but thousands have also been removed, and not always with the owner’s permission. If any footage online can be accused of copyright violation, YouTube will take it down, whether or not the accusation was justified. YouTomb, a research project by the MIT Free Culture student group, tracks the top videos removed from the service for copyright violation, and retains the metadata about the videos so we, the public, can make our own decision about whether the removal was justified or not.
The videos cannot be viewed or downloaded at this time, but, at least, if you are the footage author you can see, who requested your video to be removed, and may be you can fight back, if you have substantial proof that accusation and removal is unreasonable.
Authors Web Site: http://youtomb.mit.edu/