writes "Please sign the petition and support the proposed Public Domain Enhancement Act. See eldred.cc for details. 'This statute would require
American copyright owners to pay a very low fee (for example, $1) fifty years after a copyrighted work was published. If the owner pays the fee, the
copyright will continue for whatever duration Congress sets. But if the copyright is not worth even $1 to the owner, then we believe the work should pass into the public domain.'"
See the brief description of the Act
if you aren't familiar with what Eldred and Lessig are proposing.