Photography and Illustrations 📸
These are a number of free media website that I have found.
Caution: The licences on the media on these websites may vary so confirm usage rights prior to use.
They are external to fastertrack.com so may change. I am not responsible for the content of these sites.
Images and sometimes other media
Rawpixel - may have limited access
Includes resources featured on 16 Best Free Stock Images Websites for Commercial Use (websiteplanet.com) (thanks Emma).
Textures for 3D Models
(note: some of these websites may only have limited availability of free content)
Music and Audio 🔊
Ghosthack advent calendar (may expire), some just offers