Whenever information is needed, it seems that the first outlets most people turn to are search engines. As such, search engines are constantly evolving to keep up with the latest user demands. One of the latest developments that is rapidly expanding in popularity is the idea of image based search engines rather than keyword based searches.
When using a traditional search engine to locate specific information, you have undoubtedly become frustrated at one time or another from keywords producing irrelevant results. When searching for specific images online, the keyword based search options are nearly useless.