Visualizing comparative search engine results
By Tim Finin on Monday, October 24th, 2005 at 9:47 am.The Dogpile metasearch engine returns the top results from Google, Yahoo, MSN and Ask Jeeves. Dogpile now has a great interactive data visualization that shows where the top results were found on a Venn diagram of three sources.
Very intuitive. (Spotted on information aesthetics.)

