Creative Common licenses


The following describes each of the six main Creative Commons licenses that creators can apply to their work. This information is taken directly from http://creativecommons.org (the content on this site is licensed under an Attribution license).

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Attribution cc by

This license lets others distribute, remix, tweak, and build upon a work, even commercially, as long as they credit the original creator. This is the most accommodating of licenses offered, in terms of what others can do with works licensed under Attribution.
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Attribution Share Alike cc by-sa

This license lets others remix, tweak, and build upon a work even for commercial reasons, as long as they credit the original creator and license their new creations under the identical terms.
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Attribution No Derivatives cc by-nd

This license allows for redistribution, commercial and non-commercial, as long as it is passed along unchanged and in whole, with credit to the original creator.
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Attribution Non-Commercial cc by-nc

This license lets others remix, tweak, and build upon a work non-commercially, and although their new works must also acknowledge the original creator and be non-commercial, they don’t have to license their derivative works on the same terms.
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Attribution Non-Commercial Share Alike cc by-nc-sa

This license lets others remix, tweak, and build upon a work non-commercially, as long as they credit the original creator and license their new creations under the identical terms. Others can download and redistribute the work just like the by-nc-nd license, but they can also translate, make remixes, and produce new stories based on the work. All new work based on the original work will carry the same license, so any derivatives will also be non-commercial in nature.
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Attribution Non-Commercial No Derivatives cc by-nc-nd

This license is the most restrictive of the six main licenses, allowing redistribution. It allows others to download a work and share it with others as long as they credit the original creator, but they can’t change the work in any way or use it commercially.