Karin Glasemann and Jan Ainali presenting CommonsDB at Wikimania.
The CommonsDB presented current status (slides) and held a workshop with the participants focusing on generic usefulness on image similarity who managed to come up with some good ideas.
Wikimedia Commons copyright management
In the second feasibility study of the CommonsDB project the Institute for Information Law in Amsterdam has summarized the process Wikimedia Commons uses for copyright management. It is possibly the most comprehensive description of that process, collecting information from numerous policies and pages on Commons, and might be useful if someone would like an easy but thorough explanation. It has also been parallel published onwiki to enable even further improvement by the community.