I get a lot of images from clients to put on websites. Because I like to educate and protect my clients, I am prone to asking, “Where did you get this from?”
More often than not, the response is: “Google’s free image search.”
Let me clear up a common misconception: the image search on Google is not a repository of free images for everyone. What Google is doing is searching images on other people’s websites and showing those images to you. These are images that are protected by copyright law.
I get my share of those too, for websites and for books. Enough that when I rewrote much of my site recently, I added a bit on copyright, at the very top of the Preparing graphics page.