A customisable form of copyright license will soon be available internationally through the Creative Commons, a non-profit organisation based in the US. The organisation already offers US artists a way build their own copyright agreement.

Each custom-made license is also designed to incorporate an identifying piece of code that can be stored on a central database operated by the Creative Commons. This tag should make it simple for other artists to search for a piece of music or video that they can legally incorporate in their own work.

The latest Creative Commons initiative is to create versions of the licenses for the UK, Japan, Brazil, Finland and Norway by the end of 2003.
More here.