Creative Commons Search
Creative Commons is a nonprofit organization that enables the sharing and use of creativity and knowledge through free legal tools. http://www.media-and-learning.eu/resource/creative-commons
The search.creativecommons.org is not a search engine, but rather offers convenient access to search services provided by other independent organizations, which are ccMixter, Europeana, Flickr, Fotopedia, Google, Google Images, Jamendo, Open Clip Art Library, Pixabay, SoundCloud, SpinXpress, Wikimedia Commons, Youtube.
CC has no control over the results that are returned. Do not assume that the results displayed in this search portal are under a CC license. You should always verify that the work is actually under a CC license by following the link. Since there is no registration to use a CC license, CC has no way to determine what has and hasn't been placed under the terms of a CC license. If you are in doubt you should contact the copyright holder directly, or try to contact the site where you found the content.