Overview:Open Commons are digital commons. These are the contents that are a community freely and openly accessible and therefore major obstacles can be availed by all without. Concretely, so different content meant: Digitized music, images, photos, videos, data, literature, radio plays or software. Such digital goods can be infinitely divided. The special feature compared to similar goods is that they are not so much. By multiple use they can even be improved by users inside find errors and repair, add content, or use for new projects. That is also the reason that they are so interesting for municipalities, cities and whole societies as a commons.