Impure public goods are goods which only partially meet the criteria for public goods. > A common or collective good is a good that is freely accessible to all potential buyers. Commons can be provided by the State or by private providers (for example, parts of the Internet or the Wikipedia). Public goods and common goods are Community goods with the property of not from IDC. A resource is free, if you can use them without permission “or neutral given permission to use them.” (Lawrence Lessing) > Creative Commons (abbreviated CC; for Creative Commons, Commons) is a non-profit organization that was founded in 2001. They published several standard license agreements, with which an author of the public easily concede rights to his works can. These licenses are not tailored to a single type of plant, but applicable to any works covered by copyright copyright protection, for example texts, images, music tracks, video clips, etc.

Free content are created in this way. Contrary to a common misconception, Creative Commons is not the name of a license. The different licenses have great differences of Creative Commons. Some CC licenses relatively heavily restrict the use, others make sure that copyright is waived as far as possible. Published someone, for example, a work under the CC-BY-SA license, then he allows the use by other people, but the copyright as well as the relevant licence must be specified. This is the license Wikipedia uses; Free content, whether under a CC license or another, are important for people who want to or can not spend money for texts, pictures, music, etc. In addition must be content under specific CC licenses changed and processed be. This is important for people who want to go to for example artistically with the content. The works of a creator (such as text, music, images, videos, etc.) Private property are usually copyright protected.