Creative Commons is a non-profit organisation that offers an alternative to full copyright. By placing a Creative Commons statement on your blog, you are specifying the terms of use for anyone who would wish to use your material. You can select from a number of licenses on your blog sidebar, for more information see How do I provide a copyright statement on my blog?
Public Domain (no conditions)
By placing your blog and images in the public domain, you are specifying no conditions for anyone who wishes to use your work. They will be able to use it without permission, without attributing it to yourself and for any purpose they wish.
Attribution License
You let others copy, distribute, display, and perform your copyrighted work - and derivative works based upon it - but only if they give you credit.
Attribution-NoDerivs License
You let others copy, distribute, display, and perform only verbatim copies of your work, not derivative works based upon it - but only if they give you credit.
Attribution-NonCommercial-NoDerivs License
You let others copy, distribute, display, and perform only verbatim copies of your work, not derivative works based upon it - but only if they give you credit, and is not used for commercial purposes.
Attribution-NonCommercial License
You let others copy, distribute, display, and perform your work - and derivative works based upon it - but for noncommercial purposes only.
Attribution-NonCommercial-ShareAlike License
You let others copy, distribute, display, and perform your work - and derivative works based upon it - but for noncommercial purposes only, and only under a license identical to the license that governs your work.
Attribution-ShareAlike License
You let others copy, distribute, display, and perform your work - and derivative works based upon it - but only under a license identical to the license that governs your work.
At a glance
Attribution means:
You let others copy, distribute, display, and perform your copyrighted work - and derivative works based upon it - but only if they give you credit.
Noncommercial means:
You let others copy, distribute, display, and perform your work - and derivative works based upon it - but for noncommercial purposes only.
No Derivative Works means:
You let others copy, distribute, display, and perform only verbatim copies of your work, not derivative works based upon it.
Share Alike means:
You allow others to distribute derivative works only under a license identical to the license that governs your work.
To Learn more about Creative Commons Licences, please visit their website https://creativecommons.org/licenses/