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What is the significance of these locations for OERs?

The Open University has put more than 600 free online free courses on its website.

Cape Town is the home of the Cape Town Open Education Declaration.

This is the Stata Center at the Massachusetts Institute of Technology (MIT). In 2001, MIT was the first university to work on putting many of the teacher-defined support materials from its undergraduate and graduate courses online, in MIT OpenCourseWare.
What do each of these logos symbolise?

Copyright.

Copyleft.

To remix.

To share.
OpenLearn - Creating open educational resources
Except for third party materials and otherwise, this content is made available under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence, full copyright detail can be found in the acknowledgements section. Please see full copyright statement for details.