The Daily Bob and Copyright Law

As a result of a little surfing this morning, I threw together this page about a very cool graphic artist, his son, who appears to be a student at Carnegie Mellon and who has a small software company in Oakland, and copyright law as applied to the Internet.

The page prompts the following question: The "C" inside a circle announces copyright protection. "R" inside a circle announces a federal trademark registration. We have other symbols and marks for protecting other sorts of intellectual property rights, including the Creative Commons badge -- . The Creative Commons project also offers a Dedicated to the Public Domain badge -- . Why don't we have a "Fair User" badge or mark?