Flickr was acquired by Yahoo in 2005. Terms of use may change, so you should always check the most up-to-date terms of service. Yahoo’s Terms of Service, which apply to Flickr, were located here as of December 2016 and stated that Yahoo “does not claim ownership of Content you submit or make available for inclusion on the Service.” However, you grant Yahoo a “worldwide, royalty-free, transferable and non-exclusive” license to use and display your photographs “solely for the purpose for which such Content was submitted or made available.” The license terminates when you or Yahoo remove the content from Flickr.