You can get EXIF information from images that you find online as well as images that you take yourself or receive from friends.
To do this:
Try it out!
Click on the image below (from "Want to Feel Happier Today? Try Talking to a Stranger", on NPR):
What information do you see?
To see more information about this image, we can use an online EXIF viewer (Google "EXIF viewer" to see some options)
This will give you even more information about the image.