Existe una web que se dedica a recopilar todas aquellas autores cuyas obras pasan a ser de dominio publico. Como afirman en la propia p?na :
«is an open registry of artistic works that are in the public domain. It is currently focused on books and sound recordings EU countries are currently considering a term extension for sound recordings which would have a dramatic impact on the size of the public domain. In the future it will will expand to cover all types of cultural works which are covered by copyright».
Si quereis saber mas de este proyecto pinchar mas abajo
La web es http://www.publicdomainworks.net/
Espero que os sirva de algo.
Lolo