What facility will we have for contacting copyright holders for commercial use?

We do not anticipate having much facility for this at all. Basically all we intend is for it to be very clear who has posted specific content, with viable contact information present. We DO state that we need a clear mechanism so that if anyone believes there is content on the site that has been posted by someone who does NOT own clear copyright, they can contact the site’s administrators so that we can remove the content.