For the purposes of this guide, we consider three broad categories of open access resource: research outputs, educational materials, and other creative works.
Research outputs - These are the products of academic research, and can be found most frequently in repositories and on publisher databases.
Educational materials - These are resources developed to help in instruction and teaching, and can be found in repositories of open educational resources (OER).
Other creative works - All sorts of things are openly accessible. Some examples of creative material that can be reused are artistic works, like photography, film and music.
YouTube is a very well-known video and audio content hosting platform. A large amount of the media on YouTube is made available under a Creative Commons Attribution (CC BY) license. You can filter search results by feature "Creative Commons" to limit your results only to those videos that are openly available for reuse. Any YouTube video associated with a Creative Commons license mentions this in the description under the video window:
"Creative Commons" feature filter
"Creative Commons" tag in video description
SoundCloud is a music and audio content hosting platform, on which creators upload their works and make them freely accessible to the public. While a lot of the content is only for listening to and sharing, many items are made available under a more open Creative Commons license, which enables others to reuse and adapt the original work, sometimes even commercially. To filter results by Creative Commons licenses, select "Tracks" in the left-hand menu and then click the © symbol under "Filter results" to bring up a list of options. Content under a Creative Commons license will display this in the description:
Filtering results by license
"Creative Commons" tag in item description
Flickr is a photography and graphics sharing platform, with a large number of images being made available under open licenses. Results can be filtered by different kinds of license very easily and individual image pages display Creative Commons license icons, showing under what conditions the content can be used:
Filter results by license type
"Creative Commons" icons on image pages
Open access resources can be used like any other kind of source material, though it's important to know what the restrictions are. These will be determined by the type of license and are often indicated with icons: