Open Educational Resources (OER) is a platform for copyright-free online educational resources. There are lots of resources in different formats. Most of the resources are free from copyright. There are different Content Repositories, Portal Repository, Content+Portal Repositories. These are as follows:
For images: Flickr Creative Commons
https://www.flickr.com/creativecommons/
Flickr is a good source of photographs that have been licensed under Creative Commons. Images licensed under Creative Commons are still subject to copyright, but the creator or copyright owner has chosen to allow other people to use their material under certain conditions. Depending on which license is attached, Creative Commons images can be freely used in teaching material, as part of research publications, on blogs, wikis, and other websites, in University publications, and in MOOCs. Not all photographs on Flickr are available under a Creative Commons license.
Many Flickr users have chosen to offer their work under a Creative Commons license, and you can browse or search through content under each type of license. “Creative Commons is a non-profit that offers an alternative to full copyright.”
Google Advanced Search
https://www.google.com/advanced_search
Google Advanced Search is a more detailed method of finding information on Google. It uses a variety of Google search operators that consists of special characters and commands – also known as “advanced operators” – that goes beyond a normal Google search.
For video: Vimeo
https://vimeo.com/creativecommons
Vimeo, Inc. is an American video hosting, sharing, and services platform provider headquartered in New York City. Vimeo focuses on the delivery of high-definition video across a range of devices. Vimeo’s business model is through software as a service (SaaS). They derive revenue by providing subscription plans for businesses and video content producers. Vimeo provides its subscribers with tools for video creation, editing, and broadcasting, enterprise software solutions, as well as the means for video professionals to connect with clients and other professionals. As of 2021, the site has 200 million users, with around 1.6 million subscribers to its services.
Vimeo is a video sharing platform that was launched in 2004 by a group of filmmakers. Since then, the platform has grown to over 80 million creators — most of them artists in film, animation, music and other works of art — who’ve been able to use Vimeo as a way to share and promote their work. It differs largely from YouTube because of its “artsy” distinctiveness. That’s not to say that artists shouldn’t promote their work on YouTube, because they should if their audience is there.
For text, etc: OER Commons
https://www.oercommons.org/
OER Commons is a public digital library of open educational resources. Explore, create, and collaborate with educators around the world to improve curriculum. OER Commons (OER for open educational resources) is a freely accessible online library that allows teachers and others to search and discover open educational resources (OER) and other freely available instructional materials.
Directory of Open Educational Resources (DOER), COL
http://doer.col.org/
The Directory of Open Educational Resources (DOER) is a source for OER from across the Commonwealth. It is a testament to the wealth of resources being produced by both developing and industrialized countries within the Member States.
OASIS [COL’s eLibrary]
http://oasis.col.org/
OAsis is the Commonwealth of Learning’s online institutional repository for learning resources and publications. The publications found here are licensed under Creative Commons BY-SA 4.0 and can be freely downloaded for reuse and adaptation with attribution to COL (exceptions are noted).
COL is an intergovernmental organization that promotes the development and sharing of open learning and helps Commonwealth Member States and institutions harness the potential of distance learning and technologies for expanding access to education and training.
Wikimedia Commons
https://commons.wikimedia.org/wiki/Main_Page
Wikimedia Commons is a media repository of free-use images, sounds, other media, and JSON files. It is a project of the Wikimedia Foundation. Wikipedia
Wikimedia Commons is a media file repository making available public domain and freely licensed educational media content (images, sound and video clips) to everyone, in their own language. It acts as a common repository for the various projects of the Wikimedia Foundation, but you do not need to belong to one of those projects to use media hosted here. The repository is created and maintained not by paid archivists, but by volunteers. The scope of Commons is set out on the project scope pages.
Wikimedia Commons uses the same wiki-technology as Wikipedia and everyone can edit it. Unlike media files uploaded to other projects, files uploaded to Wikimedia Commons can be embedded on pages of all Wikimedia projects without the need to separately upload them there.
Wiki books
https://en.wikibooks.org/wiki/Main_Page
Wikibooks is a wiki-based Wikimedia project hosted by the Wikimedia Foundation for the creation of free content digital textbooks and annotated texts that anyone can edit. Initially, the project was created solely in English in July 2003; a later expansion to include additional languages was started in July 2004. Wikipedia
Openstax CNX
https://cnx.org/browse
OpenStax CNX, formerly called Connexions, is a global repository of educational content provided by volunteers. The open source platform is provided and maintained by OpenStax, which is based at Rice University. Wikipedia
Khan Academy
https://www.khanacademy.org/
Khan Academy is an American non-profit educational organization created in 2006 by Sal Khan, with the goal of creating a set of online tools that help educate students. The organization produces short lessons in the form of videos. Its website also includes supplementary practice exercises and materials for educators. Wikipedia
Saylor.com
https://www.saylor.org/
Saylor Academy is a nonprofit initiative working since 2008 to offer free and open online courses to all who want to learn. We offer nearly 100 full-length courses at the college and professional levels, each built by subject matter experts.
Global Text Project [30 textbooks management and technology]
● ESC Library's OER Guide
- A starting place to find OER repositories and lists.
- They are categorized by the type of OER: Open Textbook, Open Course, and smaller OER…
- http://subjectguides.esc.edu/oer
● Open Educational Resources: "Single Serving" OERs
● Open Textbooks: Open Textbook Repositories
● Open Educational Resources: Open Courses