Pixabay: Pixabay
Pexels: Pexels
Flickr:: https://www.flickr.com/groups/creative_commons-free_pictures
Gratisography: http://gratisography.com
morgueFile: http://www.morguefile.com/archive
Pics4Learning: http://pics.tech4learning.com
Foto5: http://photos5.com
Pics4Learning: http://www.pics4learning.com/
ImCreator: http://imcreator.com/free
Freepick: https://www.freepik.es/
Openphoto: https://openphoto.net/
Gratisography: https://gratisography.com/
Stockvault: https://www.stockvault.net/
Unsplash: https://unsplash.com/
Stocksnap.io: https://stocksnap.io/
Música/ Musique
Jamendo
FreeMusicProject
Efectos de sonido
FreeAudioLibrary
Freesound
Musopen
Dig.ccmixter
Audionautix
Youtube