Morguefile.com is a great site for free stock photography. That's usually my go to for stock images now. Almost everyone has a smartphone now too. Just take images of everything and rename them coffee, cat, kitten, sky, clouds, etc. Then when you need a basic stock photo you'll have one of your own to share. There are multiple other sites that offer public domain, and free CC images for use in blogs and graphics. In this day and age there's really no reason to steal images.