ChinaVine Copyright and Creative Commons License
Materials posted to ChinaVine include, but are not limited to text, photographs, video, and audio. ChinaVine materials are licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License (CC BY-NC-SA 3.0). To this end permission is granted to copy, distribute, and/or modify ChinaVine materials under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License (CC BY-NC-SA 3.0). The CC licenses have been vetted by the CC Affiliate Network, and are intended to be enforceable around the world. China is a member of the CC Affiliate Network. Notwithstanding your application of a CC BY-NC-SA 3.0 license, you can always publish and license the same materials on different terms, as CC licenses are non exclusive. However, you can never retract the license for copies of materials that you have licensed using CC, although the license does automatically terminate upon breach of the license terms by a particular user. In such a case, the license will only terminate as to that particular user, and not as to others using the work. Creative Commons maintains an FAQ that explains these concepts and more. For more information, see http://wiki.creativecommons.org/FAQ. For more information about the Creative Commons and its licenses, visit http://www.creativecommons.org/about.
If you contribute materials directly to ChinaVine, you thereby license it to the public for reuse under the CC BY-NC-SA 3.0 license. If you want to import materials that you have found elsewhere or that you have co-authored with others, you can only do so if it is available under terms that are compatible with the CC BY-NC-SA 3.0 license. If materials have been previously published and you wish to donate it to ChinaVine under the appropriate license, you will need to verify copyright. If you are not a copyright holder, you will still need to verify copyright permission. You retain copyright to materials you contribute to ChinaVine. You can later republish and relicense them in any way you like. However, you can never retract or alter the license for copies of materials that you place on ChinaVine under a Creative Commons license except in the event of a breach by a particular user, in which case the CC license terminates but only as to the person who violated the license.
It is not necessary to obtain the permission of a copyright holder before linking to copyright material.