What are the best libraries of creative commons licensed images?

Unsplash is my go to right now but looking for more
Sydney LiuCo-Founder of Commaful · Asked 

3 recommended

Pexels 3.0

Best free stock photos in one place

Jack Dweck15Product Manager at Unroll.Me · Written
This is pretty handy. Pulls in free images from a variety of sources.
Pixabay 2.0

Over 850,000 free high quality photos and videos

Emily Hodgins5Community and Marketing, Product Hunt · Written
Pixabay has a good selection of free to use photo's. Pretty useful - worth checking out.
The Stocks v2

Free stock photos now with colors, icons, mockups and more

Amaël Sikel3Social Media & SEO Manager at Genymobile · Written
15+ stock image resources in one single place. It also has a section for icons, another one for videos, and others for videos, mockups and fonts. Priceless