Now, I know that we could probably justify using uncredited images we drop into powerpoints for that mini-lesson on adjectives, but aren't we missing an opportunity to model ethical behavior to our students. Even if we never mention the cite, some students will notice that it's there. One may even ask about it.
Now, I have to go back and make sure I've properly credited all the images on my Weebly site. 'Scuse me.