adamrice / #stock

https://icons8.com/icons/ios-glyphs

Thousands of little monochromatic icons

https://artvee.com/

https://unsplash.com/

http://allthefreestock.com/

http://www.vecteezy.com/

free vector art

http://www.pond5.com/

Stock media. Includes a public-domain section.

http://www.photos8.com/

I bought a print of her "three graces" recently

http://www.everystockphoto.com/index.php

aggregated search of multiple stock-photo sites

http://yotophoto.com/

search engine for stock images