Where do you get your media from?

For music, there is the famous http://jamendo.com website. But there is http://www.dogmazic.net/?lang=en too.

https://search.creativecommons.org allows to search several sites for works distributed under the terms of Creative Common licenses.

I like to use the Free Music Archive.
Playing a song in-browser doesn't work without Flash, though, so you need to download a file or stream with VLC every time you wanna preview a song. Kind of annoying.

YouTube has had the option to specify videos as licensed under CC BY for some time, so you can find some libre videos there if you want to.

UCSB archive has Creative Commons Attribution-Noncommercial 2.5 license.

http://cylinders.library.ucsb.edu/index.php

http://cylinders.library.ucsb.edu/overview.php

"The UCSB Library, with funding from the Institute of Museum and Library Services, the Grammy Foundation, and donors, has created a digital collection of more than 10,000 cylinder recordings held by the UCSB Library. To bring these recordings to a wider audience, the Library makes them available to download or stream online for free."

On https://pixabay.com you can find CC images.

Thanks to everyone who commented so far! If anyone else has something that hasn't been mentioned yet, please feel free to continue commenting!

Here's a collection of collections

https://wiki.creativecommons.org/wiki/Case_Studies

(that is downloaded by your browser without a confirmation message), to
block *only* the non-free JavaScript, you can install GNU IceCat which
has the GNU LibreJS addon enabled by default (you can actually keep
using other browsers like Abrowser to enjoy the Internet with all the
non-free JavaScript, *and* also have GNU IceCat running at the same time
in order to preserve your freedom when you want to). Ideally, it would
be better either to help these content providers to liberate their
JavaScript, or to not recommend them to the general public, and provide
the same contents through a provider that doesn't force society to use
non-free JavaScript. My last link is a public place where everyone can
download the contents from my OwnCloud account on OpenMailBox (GNU
LubreJS will still block the JavaScript thinking that it's non-free, but
it is indeed free since OwnCloud is free software).

These are my favorites:

http://faif.us/
https://acesso.me/blog/
http://softwarelivre.org/aurium
http://ebb.org/bkuhn/blog/
https://jxself.org/archive.shtml
http://carlissongaldino.com.br/
http://dustycloud.org/blog/
https://wwahammy.com/
https://stallman.org/
http://kretcheu.com.br/
http://www.commitstrip.com/en/?
http://peppercarrot.com/
https://fsf.org/blogs/recent-blog-posts/
https://www.fsf.org/events/aggregator
https://fsf.org/news/
https://sfconservancy.org/news/
http://www.april.org/en/news
http://planet.gnu.org/
https://libreplanet.org/wiki/Main_Page
https://h-node.org/
http://cognitiojuris.com/
http://www2.senado.leg.br/bdsf/handle/id/20
http://www2.senado.leg.br/bdsf/handle/id/502909
http://www2.senado.leg.br/bdsf/handle/id/385380
http://www4.jfrj.jus.br/seer/index.php/revista_sjrj/index
http://www2.senado.leg.br/bdsf/handle/id/17
http://www2.senado.leg.br/bdsf/handle/id/19
https://pt-br.libreoffice.org/projetos/revista
http://www2.senado.leg.br/bdsf/handle/id/300021
https://btdigg.org/
A. https://www.gutenberg.org/
http://www12.senado.gov.br/institucional/biblioteca
http://www.dominiopublico.gov.br/pesquisa/PesquisaObraForm.jsp
http://scielo.br/
https://searx.me/
https://durian.blender.org/
https://peach.blender.org/
http://www.insecuritymovie.com/
http://herebedragonsmovie.com/
https://mango.blender.org/
http://www.starwreck.com/wp/
http://www.pioneerone.tv/
https://degooglisons-internet.org/
http://framabook.org/
https://framabee.org/
http://littlesis.org/
https://libre.fm/
https://mikegerwitz.com/
http://mamedev.emulab.it/fsanches/
https://mako.cc/copyrighteous/
https://www.softwarefreedom.org/news/
http://lu.is/blog/
https://gnowgi.org/
https://gallir.wordpress.com/
https://periodicos.ufsc.br/index.php/ethic/index
https://periodicos.ufsc.br/index.php/cadernosdepesquisa/index
https://periodicos.ufsc.br/index.php/politica/index
https://periodicos.ufsc.br/index.php/eb/index
https://periodicos.ufsc.br/index.php/perspectiva/index
https://periodicos.ufsc.br/index.php/contabilidade/index
https://periodicos.ufsc.br/index.php/adm/index
http://www.scielo.br/scielo.php?script=sci_serial&pid=2177-7055&lng=en&nrm=iso
https://periodicos.ufsc.br/index.php/economia/index
http://libregraphicsworld.org/
http://vodo.net/
http://magnatune.com/
https://media.libreplanet.org/
https://audio-video.gnu.org/

And here is my public folder (stay tunned for frequent changes.
Nowadays, I'm getting my favorite music albums out of Jamendo and
converting them to Opus to serve each with torrent files so that
everyone can help each other by sharing and seeding):

https://cloud.openmailbox.org/index.php/s/amGwGbmpSX6cSth?path=%2F

Isn't there already a wiki page somewhere listing all that stuff ?

If it is not we could create it on wikipedia, or another helpful wiki.

Edit : this one ? https://wiki.creativecommons.org/wiki/Main_Page

https://kat.cr/ (for FLACS torrents)

https://bandcamp.com/tag/free-download

+1 for Bandcamp.

Use a Google dork and search for
inurl:bandcamp.com AND "some rights reserved" AND "genre here"
or similar.

There's also a guy who has been running a CC music radio station for several years now that I always listen to. Rynothebearded.com he interviews CC artists and posts links and licenses to every song that's broadcast.