Stop43 is a UK-based digital rights group that lobbies on behalf of photographers for the preservation of their copyrights. They ran a viral campaign in 2010 to oppose a change in British law that would have removed copyright protection from orphaned works. The campaign was successful.
In 2011 they proposed offering an “e-Bay-style trading marketplace for images” Unlike some alternative registration programs, images would be registered and marked at no charge to the image producer.
References
Stop43 Wikipedia(Text) CC BY-SA