search for images with Creative Commons licenses
Using images from Discovery Education Streaming
Using images from pics4learning
Flickrcc site, which searches just Creative Commons-licensed images on the Flickr site for you.
When you publish one of these images, be sure to give credit by citing and linking to the url of the page where the photo appears. Look for the word “attribution” on the Flickrcc site. Copy that address and paste it under the photo in your post and make it a hyperlink. Remember, it’s very important to give credit to the creator of the original image.