People post millions of videos, photos and messages to social networks every day. But once this content is uploaded, who actually owns it?   Social exchange service MyCube has created an infographic that raises the issue that all this content is owned by the networks rather than people who upload it.   The data visual shows just how much content is uploaded to social networks. For instance, last year 36 billion images were uploaded to Facebook, there were 25 billion messages sent on Twitter, and 35 hours of video was uploaded to Youtube every minute. All this is worth millions to the social networking sites. On Facebook alone, the amount of uploaded content is now worth over a billion dollars each year. As part of the new Protein OS, we will explore topics such as this in our in-depth Briefings section. For more information, click here for a preview of the complete range of apps and editorial services that will part of Protein OS.