I haven't used Creative Commons as much as I should but I love the concept as it eliminates any unintentional infringement on the web.
This may be somewhat of a "no-brainer" however; I will however off up for consideration, the theory that CC it is only a benefit for the aforementioned group and may not seriously deter any infringement by anyone who had no intention of using proper channels to acquire media.....
what do you think?
