If you are unfamiliar with Creative Commons (CC) please scroll towards the bottom of this page for more information.
Pixabay is a vibrant community of creatives, sharing copyright free images and videos. All contents are released under the Pixabay License, which makes them safe to use without asking for permission or giving credit to the artist - even for commercial purposes.
Bensound a website offering free stock music tracks to use in a variety of projects like google slides, background music in videos or podcasts, Youtube videos, etc..
Youtube Audio Library
An extensive collection of free music for YouTube, by YouTube, on YouTube. Search by genre, song length, etc.. It also offers a library of royalty free sound effects as well.
Unsplash is a photo discovery platform for free to use, high-definition photos. They currently boast 850,000 photos and 100,000 contributors new content is being uploaded daily
Royalty-free music ideal for film-makers and media projects such as youtube, advertising and background music for video. We also specialize in music for educational purposes, presentations, radio and multimedia.
Pexels provides high quality and completely free stock photos licensed under the Pexels license. All photos are nicely tagged, searchable and also easy to discover through our discover pages.
***More CC resources and descriptions to be added in the near future***
"The Creative Commons copyright licenses and tools forge a balance inside the traditional “all rights reserved” setting that copyright law creates. Our tools give everyone from individual creators to large companies and institutions a simple, standardized way to grant copyright permissions to their creative work."
The videos below should help explain the idea of creative commons a bit better.