Save Orphan Works

"Orphan works are — broadly speaking — any copyrighted works where the rights holder is hard to find. Because the cost of finding the owner is so high, creators can't build on orphan works, even when they'd be willing to pay to use them. In many cases the works were abandoned because they no longer produced any income. In most cases, rights holders, once found, are delighted to have their work used."

http://eldred.cc/