These freely available resources are available for anyone to read.

The "Open" movement champions resources that are available for free to read and use. This "open" content is either in the public domain or licensed in a way that allows users to engage in the 5R activities:

1. Retain - make, own, and control a copy of the resource (e.g., download and keep your own copy)
2. Revise - edit, adapt, and modify your copy of the resource (e.g., translate into another language)
3. Remix - combine your original or revised copy of the resource with other existing material to create something new (e.g., make a mashup)
4. Reuse - use your original, revised, or remixed copy of the resource publicly (e.g., on a website, in a presentation, in a class)
5. Redistribute - share copies of your original, revised, or remixed copy of the resource with others (e.g., post a copy online or give one to a friend)

The 5 R's were created by David Wiley and published freely under a Creative Commons Attribution 4.0 license at http://opencontent.org/definition/.