If you know some of the lines to a story, a song or a stanza from a poem, FindSame will come up with sites that have a match, and probably the whole document you were looking for. It also takes as input an entire document, and returns to you a list of documents that contain any fragment of that document that is longer than about one line of text. If you are a writer you could check to see if anyone is publishing your material without your permission by uploading the text to FindSame directly from a file on your computer. You might want to check to see if the latest revision of a document has been applied on a web page. Sites where Press Releases have been published are easily found.
Researchers can find relevant sites to expand resource materials.
Locations of communities of interest on a given topic can be found. Worse, he is incurable. A FindSame search yielded 19 sites using the quote and as a fan I found new places to view and chuckle. One of the more useful aspects of FindSame shows up by searching on the URL of a specific web site. Then below the page content is a list of all the other pages found on the web using substantial amounts of the same text.