COPYING IMAGES: On a PC, hold down the right mouse button on the image and save the image to disk.
On a Mac, press CTRL and hold the mouse button down on the image to save it.

Not all images can be found on the WWW. You can add to the search criteria to improve your chances.
WARNING: Not all sites on the WWW permit you to make a copy of their images. If you are unsure, check before copying.