found on memepool.com: "Kartoo is a relational search engine interface. Instead of displaying a list of links, in ranked order, it displays the results of a given search in a graphical, networked format. Nodes are linked to each other by common terms, which you can add and remove to further restrict the search graphically. The links between the nodes are color coded, allowing you to, with minimal effort, see how terms relate different sites, and nodes are displayed by size, according to relevance to the search term."
it can be found at: http://www.kartoo.com/en/kartoo.html (that's the html version, there is also a flash verison) try 'linux' or 'free', for instance...
