Sometimes you need a photo to brighten up your content. This applies whether you’re creating an email announcement, a lesson in a course, a set of instructions, or almost anything else (like, er, this blog post). “A picture is worth 1,000 words” for a reason, right?

If you use a web search for images, you’re going to find a mix of “All rights reserved” and “it’s ok to use this”. But Dara Fontein over at Hootsuite compiled a great list of 20 Free Stock Photo Sites. Published in 2015, it’s still one of the freshest lists available with great, sources of high-resolution images, royalty free and licensed for re-use. Next time you need a picture and want to feel good about respecting copyright, check it out.