Freedom to Search
Free software may stem from a research mind-set, where shared results lead to a greater good. Free software has built this around various licenses such as GPL and BSD. The ideals behind free software have spread beyond software and can also be seen in other areas: documentation, game mods, illustrations, music - all types of content creation can be licensed in an open and free way.
One problem with all these licenses, as well as the plethora of closed and proprietary offerings makes it hard to find proper, open, material to start from when creating derived works. Here, creative commons enters the picture with CC Search. To quote the website, CC search is: