Big news from Google -- their regular Transparency Reports will now include information about content takedown requests!
This means that it's about to get a lot easier to see and talk about the costs of copyright restrictions. Some background: under U.S. law, Google can protect itself from infringement claims by promptly handling so-called "takedown requests". A takedown request is when a copyright owner or their agent asks Google to remove content from its servers (or, in the case of the search engine, from being included in search results) because continuing to offer the content would violate the owner's copyright, and continuing to link to it in search results could be considered contributory infringement.
But how often are such requests made? Who makes them? Unless you worked at Google or a similarly large information-gathering organization, you'd have no way of knowing.
Now Google's going to tell us. From their announcement: