Larry Lessig talks about future enhancements to the CC license including CC+, On what exactly happened Saturday night (Lessig Blog):
"CC+: This protocol enables a simple click through ability to get rights or permissions beyond those provided by a CC license. So, e.g., a Flickr photo licensed under a BY-NC license could have a simple click through to some agent to provide commercial rights for that photo. We announced with a bunch of partners already. But really key was:This is very cool.
Yahoo announced it was baking CC 'into the system' of Yahoo, making it possible for any Yahoo service to offer content using the CC infrastructure."
I first talked about this in September of 2006, Proposal: Creative Commons 50/50 License. Andy Carvin enhanced my idea and blogged about it the next day, A New Idea: A Creative Commons RevShare License.