TinEye is a reverse image search engine. You can submit an image to TinEye to find out where it came from, how it is being used, if modified versions of the image exist, or to find higher resolution versions.
TinEye is the first image search engine on the web to use image identification technology rather than keywords, metadata or watermarks. It is free to use for non-commercial searching.
TinEye regularly crawls the web for new images, and we also accept contributions of complete online image collections. To date, TinEye has indexed 2,163,266,343 images from the web to help you find what you’re looking for. For more information, please see our FAQ, and for some real TinEye search examples, check out our Cool Searches page.
“This quick and easy spreading of content is great, but it creates an issue: sustained attention on a single work is hard to come by, causing a devaluing of authorship. This is problematic, at best, for a traditional artistic practice. A Tumblr viewer could conceivably click on every image and follow each link through to it source, but there are thousands of photographs surrounding it, so why bother?”—http://prostheticknowledge.tumblr.com/
“A book is made from a tree. It is an assemblage of flat, flexible parts (still called “leaves”) imprinted with dark pigmented squiggles. One glance at it and you hear the voice of another person, perhaps someone dead for thousands of years. Across the millennia, the author is speaking, clearly and silently, inside your head, directly to you. Writing is perhaps the greatest of human inventions, binding together people, citizens of distant epochs, who never knew one another. Books break the shackles of time, proof that humans can work magic.”—Carl Sagan (via adventurerr)
“When I was a child, I thought grown-ups and teachers knew the truth, because they told me they did. It took years for me to discover that the first step in finding the truth is to begin unlearning everything adults had taught me, and to start doing the things they had taught me not to do.”—Anne Lamott - Grace (Eventually)