http://labs.tineye.com/multicolr/
Wikimedia: Creative Commons
https://commons.wikimedia.org/wiki/Main_Page
SoundCloud: Creative Commons
https://soundcloud.com/groups/creative-commons
YouTube: Creative Commons
https://support.google.com/youtube/answer/2797468
Vimeo: Creative Commons
https://vimeo.com/creativecommons
Flickr: Creative Commons
https://www.flickr.com/creativecommons/
Learning Objects Repositories
http://edutechwiki.unige.ch/en/Learning_objects_repositories
OERcommons
https://www.oercommons.org/
The Open Directory Project
http://www.dmoz.org/Reference/Education/
A guide to free and open source education
http://opensource.com/education/13/4/guide-open-source-education
WikiEducator.org
http://wikieducator.org/Exemplary_Collection_of_Open_eLearning_Content_Repositories
The Ultimate Directory of Free Image Sources
http://www.theedublogger.com/2014/07/09/the-ultimate-directory-of-free-image-sources/
Open Font Library
https://fontlibrary.org/
14 Awesome Open Source Music Sites for Digital Creatives
http://www.webdistortion.com/2009/02/21/11-awesome-open-source-music-sites-for-digital-creatives/
100 Search Engines For Academic Research
http://www.teachthought.com/technology/100-search-engines-for-academic-research/
