Images and Video

PEXELS

Pexels Videos

Videvo

Unsplash

Pixabay

Graphics Vector and Fonts

Font Awesome

DaFont

vecteezy

https://www.vectorstock.com/free-vectors

http://freedesignfile.com/category/free-vector/

https://www.freepik.com/

https://www.vectorportal.com/

http://www.freevectorarchive.com/

Music and Sound Effects

Incompetech

BenSound

FreeSound.org