Please be aware that not all material contained in the sites below is fully open. Each site may contain content which varies in its creative commons license or usage permissions.
There are several image and photograph sites which allow you to search for either public domain or CC licensed images. If you are looking for images, start with these:
This guide is adapted from: Getting Started with OER by Jillian Maynard is licensed under a Creative Commons Attribution 4.0 International License.