Flickr has long had good features for sharing photos with Creative Commons licenses, and for searching based on license. Example: http://www.flickr.com/search/?

Flickr has long had good features for sharing photos with Creative Commons licenses, and for searching based on license. Example: http://www.flickr.com/search/?q=duck&l=commderiv&ct=0&mt=photos&adv=1 http://www.flickr.com/search/?q=duck&l=commderiv&ct=... I am happy this still works. If Flickr gets more popular with photographers, there will be even more photos available to Wikipedia and other free content projects.