http://www.attributor.com/
http://tinyurl.com/2ha5fo
TechCrunch: Attributor Launches Service to Track Copyright
Infringement Across the Web
Images & video are in beta.
I'm not exactly sure how it's going to work but if they have some free
web preview it might be useful (both for checking if something is a
copyvio, and seeing where your work from Commons has been used).
cheers,
Brianna
--
They've just been waiting in a mountain for the right moment:
http://modernthings.org/