Unsplash.com

All photos published on Unsplash are licensed under Creative Commons Zero, which means you can copy, modify, distribute and use the photos for free, including commercial purposes, without asking permission from or providing attribution to the photographer or Unsplash.

Twenty20.com

45+ million authentic stock photos from everyday people capturing life as it happens. Choose between 3 simple, royalty-free licensing plans that allow you to purchase high quality photos for $8-15 per photo.