Creative Commons Plugin for Wordpress
Firasd has made a CC plugin for wordpress, that let the user choice a CC license for his posts. You can read more and download it on:
http://firasd.org/studio/wp/wp-cc/
http://www.firasd.org/weblog/2005/01/10/introducing-wp-cc
and
http://www.lessig.org/blog/archives/002386.shtml
