You may wish to use images in your teaching materials, including Canvas spaces and slides.
ArtStor is a fabulous resource for imagery, specifically for use within an educational context. Institutions are asked to join the community, but there's also a public collection in case you can't do that right now .
Creative Commons Search allows you to search content available under a CC licence across different service providers including Flickr, YouTube and Google Images. Has over 500 million images available for re-use.
Everystockphoto searches millions of freely licensed photos from various sources and presents them in an integrated search.
Many Flickr users have chosen to offer their work under a Creative Commons license; you can browse or search through content under each type of license. They also have an area called "The Commons", designed to bring together photographic communities and document the real world for all to see.
Pexels is a website that offers images and videos that are free to be downloaded and used. All material is made available under the custom Pexels licence.
Pixabay is a website for sharing photos, illustrations, graphics, film footage and music. All materials is shared under the custom Pixabay licence.
Unsplash is a website that offers images that are free to download and use. All images are made available under the custom Unsplash licence.
VADS has a portfolio of visual art collections comprising over 100,000 images that are freely available for use in learning, teaching and research in the UK. This is particularly great for art, history, etc.
Wikimedia Commons is a media repository which hosts images, sound and video clips under a number of open licences.
