"You may know that Flickr is one of the largest repositories of freely usable public domain and Creative Commons photos in the world, hosting collections contributed by libraries, national archives, foundations, museums, galleries, and individual users (I've uploaded more than 10,000 CC-BY-SA images of my own). However, with its latest redesign, Flickr has made is very difficult to copy the images it has been entrusted with, and nearly impossible to correctly attribute them in accord with their license terms. Today, we're fixing that. A little, anyway."
"Canva is another web tool you can use with your students to create mini-posters for your class. Canva is easy to use and has user friendly interface. The process of creating a visual through Canva is as simple as drag and drop. Canva provides you with a wide variety of images and clip arts that you can modify to suit your purposes. You can even upload your own images to use as background in your graphics."