Images:

Pixabay  

Pexels     

Banco de imágenes y sonidos  INTEF

Mediateca Educamadrid

Creativecommons: http://search.creativecommons.org

Creative Commons -- 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/

Music:

Jamendo

FreeMusicProject

Efectos de sonido

FreeAudioLibrary

Freesound

Musopen

Dig.ccmixter

Audionautix

Youtube